EB3C Relay Barriers EB3L Lamp Barriers EB3N Safety Relay Barriers

Transcription

1 EB3C Relay Barriers EB3 amp Barriers EB3 Safety Relay Barriers EB3C Relay Barriers EB3 Safety Relay Barriers EB3 amp Barriers

2 Intrinsically Safe Explosion-proof System In order to establish an intrinsically safe explosion-proof system, a barrier must be selected depending on the type of device (such as) pushbutton, pilot light, and proximity switch that are installed in the hazardous area. See the selection chart below. In an hazardous area... Zone 0 Zone 1 Zone 2 Contacts need to be installed. Safety input equipment need to be installed. Zone 0 Zone 1 Zone 2 Illuminated switch needs to be installed. Pilot light needs to be installed. Buzzer needs to be installed. Relay barrier Safety relay barrier Relay barrier amp barrier amp barrier Wiring condition Wiring condition Wiring condition Wiring condition Separate wiring Common wiring Common wiring Without auxiliary output With auxiliary output Common wiring Separate wiring Common wiring Common wiring Pilot ight Input/Output Reset Output Relay output 1O Transistor output Auto reset Manual reset Relay output Transistor output Source input Sink input ED pilot light Buzzer (note) Power Supply Power Supply Power Supply AC DC EB3-A2 D Page 24 EB3-M2 D Page 24 AC DC AC DC EB3C- A Relay barrier Page 4 EB3C- D Relay barrier Page 4 EB3C A Page 4 EB3 A Page 12 EB3C D Page 4 EB3 D Page 12 EB3-S A amp barrier Page 12 EB3-S D amp barrier Page 12 2

3 Relay Barrier / amp Barrier Selection Relay Barrier Model EB3C- A EB3C- D EB3- D Shape Explosion Protection FM: Class I, II, III Div1 / Group A, B, C, D, E, F, G Class I, Zone 0 / AEx [ia] II C U: Class I, II, III Div1 / Group A, B, C, D, E, F, G Class I, Zone 0 / AEx [ia] II C PTB (ATEX, IECEx): [Exia] II C, Exia] III C CQST: [Exia Ga] II C TIIS: [Exia] II C KCS: [Exia] II C K: [Exia] II C KR: [Exia] II C Relay Barrier: [Exia] II C Degree of Protection I0 I0 I0 EB3-2D: o. of Channels 1, 2, 3, 5, 6, 8,, 16 1, 2, 3, 5, 6, 8,, 16 EB3-2R5D: Power Voltage 0 to 240V AC 24V DC 24V DC Output Relay Transistor (Sink/Source) Relay Transistor (Sink/Source) Connection Terminal Terminal, Connector Terminal Mounting Size (excluding projections) 35-mm-wide DI rail Panel mounting 42W 75H 77.5D (1 channel) 65W 75H 77.5D (2, 3 channels) 1.5W 75H 77.5D (5, 6, 8 channels (common)) 171.5W 75H 77.5D (8,, 16 channels (common)) 35-mm-wide DI rail Panel mounting 42W 75H 77.5D (1 channel) 65W 75H 77.5D (2, 3 channels) 1.5W 75H 77.5D (5, 6, 8 channels (common)) 171.5W 75H 77.5D (8,, 16 channels (common)) Relay 2 safety circuits 2 safety circuits, 5 auxiliary circuits 35-mm-wide DI rail / Panel mounting 65.0W 75.0H 77.5D (EB3-2D) 1.5W 75.0H 77.5D (EB3-2R5D) 220g (EB3-2D) Weight (approx.) 0.38kg (EB3C-RA) 0.3kg (EB3C-R16CD) 300g (EB3-2R5D) Page 4 24 amp Barrier Model EB3- A EB3- D Shape Explosion Protection FM: Class I, II, III Div1 / Group A, B, C, D, E, F, G Class I, Zone 0 / AEx [ia] II C U: Class I, II, III Div1 / Group A, B, C, D, E, F, G Class I, Zone 0 / [AEx ia] II C PTB (ATEX, IECEx): [Exia] II C, Exia] III C CQST: [Exia Ga] II C TIIS: [Exia] II C KCS: [Exia] II C K: [Exia] II C KR: [Exia] II C Degree of Protection I0 I0 o. of Channels 1, 2, 3, 5, 6, 8, 1, 2, 3, 5, 6, 8,, 16 Power Voltage 0 to 240V AC 24V DC Input/Output Transistor input (sink) Transistor input (source) Transistor input (sink) Transistor input (source) Connection Terminal Terminal, Connector Mounting Size (excluding projections) 35-mm-wide DI rail Panel mounting 42W 75H 77.5D (1 channel) 65W 75H 77.5D (2, 3 channels) 1.5W 75H 77.5D (5, 6, 8 channels (common)) 171.5W 75H 77.5D (8, channels) Weight (approx.) 0.36kg (EB3-0SA) 0.36kg (EB3-6CSD) Page mm-wide DI rail Panel mounting 42W 75H 77.5D (1 channel) 65W 75H 77.5D (1 channel) 1.5W 75H 77.5D (5, 6, 8 channels (common)) 171.5W 75H 77.5D (8,, 16 channels (common)) 3

4 EB3C Relay Barriers Barriers Input contacts can be used in any explosive gas and Zone 0/Class I Div. 1 areas. Relay Barrier: [Exia] II C Explosion Switch (EBZ-A): Exia II CT6 protection Switch (EBZ-A1): Exia II BT6 IEC6007 compliant. Wide variety of models ranging from 1-circuit to 16 circuit models. 8- and 16-channel are available in common wiring, ideal for connection to PCs. 16-circuit also available with a connector. o grounding required. IDEC s original spring-up terminal minimizes wiring time. 35-mm-wide DI rail mounting or direct screw mounting. Global usage IECEx USA: FM, U Europe: CE marking, ATEX China: CQST Korea: KCS Taiwan TS Japan: TIIS Ship class: K (Japan), KR (Korea) Connector Model Relay Barriers 4 Power Voltage 0 to 240V AC 24V DC Connection to on-intrinsically Safe Circuit Terminal Connector Input Wiring Method Separate/Common Wiring Compatible Output Relay umber of Channels Part o. Weight (g) 1 EB3C-R01A EB3C-R02A EB3C-R03A 10 5 EB3C-R05A EB3C-R06A EB3C-R08A 300 EB3C-RA 380 Common Wiring Only 8 EB3C-R08CA EB3C-T01A EB3C-T02A EB3C-T03A 180 Separate/Common Transistor (Sink/Source) 5 EB3C-T05A 250 Wiring Compatible 6 EB3C-T06A EB3C-T08A 320 EB3C-TA 340 Common Wiring Only Transistor (Sink) 8 EB3C-T08CKA EB3C-T16CKA 260 Transistor (Source) 8 EB3C-T08CSA EB3C-T16CSA 260 Separate/Common Wiring Compatible Common Wiring Only Separate/Common Wiring Compatible Common Wiring Only 1 EB3C-R01D EB3C-R02D EB3C-R03D EB3C-R05D 250 Relay 6 EB3C-R06D EB3C-R08D 260 EB3C-RD EB3C-R08CD EB3C-R16CD 30 1 EB3C-T01D EB3C-T02D EB3C-T03D 170 Transistor (Sink/Source) 5 EB3C-T05D EB3C-T06D EB3C-T08D 250 EB3C-TD 320 Sink 8 EB3C-T08CKD EB3C-T16CKD 350 Transistor Source 8 EB3C-T08CSD EB3C-T16CSD 350 Sink EB3C-T16CKD-C Source EB3C-T16CSD-C 330

5 EB3C Relay Barrriers Accessories ame Part o. Ordering o. Package Quantity Description DI Rail BAA00 BAA000 Aluminum (1m long) BA000 BA0000 Steel (1m long) End Clip B6 B60 For fastening EB3C units on the DI rail. Static Electricity Caution Plate EBZ-1 EBZ- Polyester 20 (W) x 6 (H) mm Explosion-Protection and Electrical Specifications Explosion Protection Intrinsic safety type Degree of Protection I0 (IEC6052) Safe indoor place Relay Barrier Installation ocation (safe area: non-hazardous area) Switch For zone 0, 1, 2 hazardous areas on-intrinsically Safe Circuit Maximum Voltage (Um) 250V AC Wiring Method 1-channel 16-channel Separate Wiring Common Wiring Rated Operating Voltage 12V DC ±% Rated Operating Current ma DC ±20% Maximum Output Voltage (Uo) 13.2V DC Maximum Output Current (lo) 14.2 ma ma Maximum Output Power (Po) 46. mw 750 mw Maximum External Capacitance (Co) (ote 1) 470 nf (470 nf) 40 nf (365 nf) Maximum External Inductance (o) (ote 2) 87.5 mh (87.5 mh) 0.6 mh (0.425 mh) 600/(+1)Ω Allowable Wiring Resistance (Rw) 300Ω ( = number of common channels) Maximum Channels per Common ine 16 Contact Configuration 1O Rated Insulation Voltage (Ui) 250V AC, 125V DC Thermal Current (lth) 3A (common terminal: 8A) Contact Resistive oad AC: 750 VA, DC: 72W Allowable AC: 750 VA (cos ø = 0.3 to 0.4) Power Inductive oad DC: 48W (/R = 7 ms) Resistive oad 250V AC 3A, 24V DC 3A Rated oad 250V AC 3A (cos ø = 0.3 to 0.4) Inductive oad 24V DC 2A (/R = 7 ms) Minimum Applicable oad 0.1V DC, 0.1 ma (reference value) Contact Resistance 50 mω maximum (initial value) Turn O Time 12 ms maximum (rated voltage) Turn OFF Time ms maximum (rated voltage) Intrinsically Safe Circuits on-intrinsically Safe Circuits Relay Output Mechanical ife 20,000,000 operations minimum (at 18,000 operations/hour, without load) Electrical ife 0,000 operations minimum (at 1,800 operations/hour, rated load) Short-circuit Protection one Rated Voltage 24V DC Maximum Voltage 30V DC Maximum Current 0 ma (connector model: 15 ma) eakage Current 0.1 ma maximum Voltage Drop 1.5 V maximum Clamping Voltage 33V (1W) Inrush Current 0.5A maximum (1 sec) Turn O Time 0.1 ms maximum (resistive load) Turn OFF Time 0.4 ms (typical) (resistive load) Short-circuit Protection one ote: Values in ( ) are those approved by TIIS (Technology Institution of Industrial Safety, Japan). Transistor Output Certification o. Certification Organization FM U PTB (ATEX) Explosion Protection Certification o. Class I, II, III Div. 1 Group A, B, C, D, E, F, G Class I, Zone 0 AEx [ia] II C Class I, II, III, Div. 1 Group A, B, C, D, E, F, G E2347 Class I, Zone 0 AEx [ia] II C [Exia] II C: Gas, Vapour [Exia] III C: Dust PTB0 ATEX2046 PTB (IECEx) [Exia] II C: Gas, Vapour [Exia] III C: Dust IECEx PTB.0015 CQST [Exia Ga] II C CEx KCS [Exia] II C 14-AV4B Relay barrier: [Exia] II C T053 TIIS Switch (EBZ-A): Exia II CT6 T5758 Switch (EBZ-A1): Exia II BT6 T561 K [Exia] II C Type Test o. 13T606 KR [Exia] II C TYK17821-E003 ote: For details about switches, see Switch Explosion-Protection Specifica tions on page 6 and 3. Switches in the Hazardous Area on page. General Specifications Power Voltage AC Power DC Power Rated Power Voltage 0 to 240V AC 24V DC Allowable Voltage Range 15 to +% ±% Rated Frequency Inrush Current Dielectric Strength (1 minute, 1 ma) Operating Temperature Storage Temperature Operating Humidity Atmosphere Pollution Degree Insulation Resistance Vibration Resistance (damage limits) Shock Resistance (damage limits) Terminal Style Mounting Power Consumption (approx.) 50/60 Hz (allowable range: 47 to 63 Hz) A (0V AC) A 20A (200V AC) Between intrinsically safe circuit and non-intrinsically safe circuit: V AC Between AC power and output terminal: 1500V AC Between DC power and transistor output terminal: 00V AC (screw terminal model only) 20 to +60 C (no freezing) 20 to +60 C (no freezing) 45 to 85% RH (no condensation) 800 to 10 hpa 2 (IEC60664) MΩ minimum (500V DC megger, between the same poles as the dielectric strength) Panel mounting: to 55 Hz, amplitude 0.75 mm DI rail mounting: to 55 Hz, amplitude 0.35 mm Panel mounting: 500 m/s 2 (3 times each on X, Y, Z) DI rail mounting: 300 m/s 2 (3 times each on X, Y, Z) M3 screw terminal 35-mm-wide DI rail or panel mounting (M4 screw).6 VA (EB3C-RA at 200V AC) 4.8W (EB3C-R16CD at 24V DC) 5

6 EB3C Relay Barrriers Switch Explosion-Protection Specifications (Japan only) Simple apparatuses in accordance with relevant standards of each country can be installed in the hazardous area and connected to the EB3C located in the safe area. In Japan, any switches, though regarded as simple apparatuses, must be certified for explosion-proof devices. EBZ-A and EBZ-A1 are IDEC s generic Part o. of any single apparatuses certified by TIIS for use with the EB3C, therefore simple appa ratuses with specifications shown below can be used as those approved by the Japanese explosion-proof certification. Switch Part o. EBZ-A EBZ-A1 Explosion Proof (ote 1) Exia II CT6 Exia II BT6 Operating Temperature 20 to +60 C (no freezing) Operating Humidity 45 to 85% RH (no condensation) Degree of Protection I0 Dielectric Strength 500V AC, 1 ma 1-channel Separate Wiring 16-channel Common Wiring Maximum input voltage (Ui): 13.2V Maximum input voltage (Ui): 13.2V Intrinsic Safety Ratings and Parameters Maximum input current (Ii): 14.2 ma Maximum input current (Ii): ma Maximum input power (Pi): 46. mw Maximum input power (Pi): 750 mw Internal capacitance (Ci): 2 nf Internal capacitance (Ci): 32 nf Internal inductance (i): 5 µh Internal inductance (i): 80 µh Metallic: Magnesium content must be 7.5% or less (steel and aluminum are acceptable) Enclosure Material Switch Ratings (ote 2) ote 1: See Precautions for Operation on page. ote 2: For details, see 3. Switches in the Hazardous Area on page. Internal Circuit Block Diagram Plastic: Switch operator exposed area IIC: 20 cm2 maximum IIB: 0 cm2 maximum When the switch has a wider exposed area, attach a caution label as shown at right. Caution To prevent electrostatic charges, do not rub the switch surface during operation. Use a soft cloth dipped with water for cleaning. Caution abel Example Contact rating: Ui, Ii minimum Contact resistance: 0.5Ω maximum Cross sectional area of wire: mm2 minimum Printed circuit board: Thickness 0.5 mm minimum Copper foil width 0.15 mm minimum Thickness 18 µm minimum one/both side(s) A resistor to prevent contact welding and an ED can be connected to 1-channel separate wiring circuits. Consult IDEC for details. AC Power, Relay Output DC Power, Transistor Output Connector Wiring, Sink Output Hazardous Area Safe Area (on-hazardous Area) Green Yellow Yellow Yellow Green Yellow Yellow Yellow Green Yellow Yellow ~ ~ ~ A1 A2 A3 + A1 A2 A3 + A1 A16 Dimensions Connector Model EB3C-T16C -C M3 ø6 4-ø4.4 hole 65 Applicable Crimping Terminal ø3.2 min. 3 max. 5.4 min. 6 max. Stripping the Wire End 83.5 Solid Wire (4) 6 to 8 mm M4 or holes 65 Stranded Wire (Ferrule) 6 to 8 mm Mounting Hole ayout All dimensions in mm. 6

7 ø22 TW Series Switches & Pilot ights EB3C Relay Barrriers Terminal EB3C- 01 EB3C- 03 EB3C- 06 EB3C- EB3C- 02 EB3C- 05 EB3C- 08 EB3C- 08C EB3C- 16C ø4.4 M3 ø6 hole (4) 65 4 Mounting Hole ayout ( Mounting) 2-M4 tapped or 2-ø4.5 mounting holes 65 2-M4 tapped or 2-ø4.5 mounting holes 2-M4 tapped or 2-ø4.5 mounting holes 4-M4 tapped or 4-ø4.5 mounting holes External Wiring Examples Transistor Output (Ex.: EB3C-T06A) Transistor Sink Output (Ex.: EB3C-T08CKD) Transistor Source Output (Ex.: EB3C-T08CSD) P7 P8 1 2 P7 P8 1 2 A1 A2 A3 A4 C4 A5 C5 A6 C6 + A1 A2 A3 A4 A5 A6 A7 A8 + A1 A2 A3 A4 A5 A6 A7 A8 0 to 240V AC oad oad oad oad Power 24V DC ote: On the sink/source transistor output model, ter minals A can be used as a positive common line. oad oad oad 24V DC oad oad oad oad oad oad oad oad oad Power 24V DC 24V DC oad oad oad oad oad oad oad oad oad Power 24V DC Relay Output (Ex.: EB3C-R06A) Relay Output Common Wiring (Ex.: EB3C-R16CD) P7 P8 1 2 P A1 A2 A3 A4 C4 A5 C5 A6 C6 + A1 A2 A3 A4 A5 A6 A7 A8 A A A11 A12 A13 A14 A15 A16 C4 0 to 240V AC oad oad oad oad oad oad oad Power AC/DC 24V DC oad oad oad oad oad oad oad oad oad oad oad oad oad oad oad oad oad Power AC/DC 7

8 EB3C Relay Barrriers Connector Model Output Wiring Diagram EB3C-T16CKD-C (Sink) CH CH CH11 CH12 CH13 CH14 CH15 CH16 A A A11 A12 A13 A14 A15 A16 C C A1 A2 A3 A4 A5 A6 A7 A8 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 +V COM EB3C-T16CSD-C (Source) Internal Circuit EB3C +V () A1-A16 COM () COM Input I0-I15 CH CH CH11 CH12 CH13 CH14 CH15 CH16 A A A11 A12 A13 A14 A15 A16 C C A1 A2 A3 A4 A5 A6 A7 A8 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 V COM Internal Circuit EB3C COM () A1-A16 Input I0-I15 COM PC PC Internal Circuit Internal Circuit CHn + An COM CHn + An COM Wiring Example with IDEC s MicroSmart PC Input Modules EB3C-T16CKD-C Terminal Output 20 A1 1 A 18 A2 17 A 16 A3 15 A11 14 A4 13 A12 12 A5 11 A13 A6 A14 8 A7 7 A15 6 A8 5 A16 4 +V 3 C 2 COM 1 C FC4A-16B3 Input Terminal I0 20 I 1 I1 18 I11 17 I2 16 I12 15 I3 14 I13 13 I4 12 I14 11 I5 I15 I6 8 I16 7 I7 6 I17 5 COM 4 COM 3 C 2 C 1 EB3C-T16CSD-C Terminal Output 20 A1 1 A 18 A2 17 A 16 A3 15 A11 14 A4 13 A12 12 A5 11 A13 A6 A14 8 A7 7 A15 6 A8 5 A16 4 V 3 C 2 COM 1 C FC4A-16B3 Input Terminal I0 20 I 1 I1 18 I11 17 I2 16 I12 15 I3 14 I13 13 I4 12 I14 11 I5 I15 I6 8 I16 7 I7 6 I17 5 COM 4 COM 3 C 2 C 1 ote: The wiring in dashed line does not affect the operation of the EB3C. Applicable connector is IDEC s JE1S-201. Input power for PC inputs is supplied by the EB3C, therefore the PC input does not need an external power supply. Wiring Example of Intrinsically Safe External Inputs. Common Wiring (Maximum 16 circuits) All input lines are wired to a common line inside the intrinsically safe switch (one common line per intrinsically safe circuit). A7 P7 A8 P8 1 2 A P A 0 A11 1 A12 2 A13 3 A14 4 A15 5 A C C4 4 C5 5 C C4 4 C5 5 C6 6 A7 P7 C7 7 A8 P8 C8 8 A P C A 0 0 A7 P7 A8 P8 1 2 Some input lines are wired to a common line inside the intrinsically safe switches, while others are outside switches (one common line per intrinsically safe circuit). A7 P7 A8 P8 1 2 A P A 0 A11 1 A12 2 A13 3 A14 4 A15 5 A C C4 4 C5 5 C C4 4 C5 5 C6 6 A7 P7 C7 7 A8 P8 C8 8 A P C A 0 0 A7 P7 A8 P8 1 2 All input lines are wired to a common line outside the intrinsically safe switch (one common line per intrinsically safe circuit). A7 P7 A8 P8 1 2 A P A 0 A11 1 A12 2 A13 3 A14 4 A15 5 A C C4 4 C5 5 C C4 4 C5 5 C6 6 A7 P7 C7 7 A8 P8 C8 8 A P C A 0 0 A7 P7 A8 P

9 2 1 A7 P7 A8 P8 1 2 A P A 0 A11 1 A12 2 A13 3 A14 4 A15 5 A C C4 4 C5 5 C C4 4 C5 5 C6 6 EB3C Relay Barrriers A7 P7 C7 7 A8 P8 C8 8 A P C A 0 0 A1 A2 A3 A7 P7 A8 P Separate Wiring Each input line of the EB3C makes up one independent intrinsically safe circuit C4 4 C5 5 C C4 4 C5 5 C6 6 A7 P7 C7 7 A8 P8 C8 8 A P C A 0 0 Diagram Symbols Contacts in one switch (EBZ-A or EBZ-A1) One intrinsically safe circuit (maximum 16 circuits) Serial-Parallel Connection of Switches 1 2 A1 otes As shown in the diagram on the left, a required number of contacts in one switch (3 contacts in the example at left) can be added to the contacts in one switch connected to one input channel. Similarly, a required number of contacts in one switch can be added to a common line connected to multiple input channels. The capacitance and inductance of the added contacts in one switch must be included in the calculation of the wiring capacitance and inductance in Precautions for Operation, 5. Wiring for Intrinsic Safety, (7) on page 11. In addition, a required number of contacts can be added in the enclosure of contacts in one switch. In this case, however, do not include the capacitance and inductance in the calculation of the wiring capacitance and inductance on page 11. Instead, make sure that the internal capacitance (Ci) and internal inductance (i) are within the values shown in the table Switch Explosion-Protection Specifications (Japan only) on page 6. Recommended Connector Cable for Connector Models I/O Terminal Cable Description o. of Poles ength (m) Part o. Shape Applicable Model 0.5 FCZ-H050A20 With Shield 1 FCZ-H0A20 IDEC MicroSmart 2 FCZ-H200A20 I/O Module 3 FCZ-H300A FCZ-H050B20 Without Shield Cable with Crimping Terminal 40-pin Cable for PC 20 1 FCZ-H0B20 2 FCZ-H200B20 3 FCZ-H300B20 1 BXZ-H0E4 2 BXZ-H200E4 3 BXZ-H300E4 1 BXZ-H0 2 BXZ-H200 3 BXZ-H Connector B Connector A IDEC MicroSmart I/O Module Terminal Mitsubishi A Series Input Module (positive common) EB3C-T16CKD-C FCZ-H A, FCZ-H B Internal Connection Fujitsu Connecto FC-367J024-AU/F IDEC Connector JE1S BXZ E4 Internal Connection IDEC Connector JE1S-201 Y-shaped Compression Terminal (Marking Tube o.) BXZ-H Internal Connection Fujitsu Connector FC-367J040-AU/F B A (Connecting Side) (Connecting Side) (Connecting Side) Connector A IDEC JE1S Connector B IDEC JE1S (Connecting Side) (Connecting Side) (Connecting Side)

10 EB3C Relay Barrriers Operating Instructions 1. Installation of EB3C Relay Barriers (1) The EB3C can be installed in any direction. (2) Install the EB3C relay barrier in a safe area (non-hazardous area) in accordance with intrinsic safety ratings and param eters. To avoid mechanical shocks, install the EB3C in an enclosure which suppresses shocks. (3) When installing or wiring the EB3C, prevent electromagnetic and electrostatic inductions in the intrinsically safe circuit. Also prevent the intrinsically safe circuits from contacting with another intrinsically safe circuit and any other circuits. Maintain at least 50 mm clearance, or provide a metallic separating board between the intrinsically safe circuit and non-intrinsically safety circuit. When providing a metallic separating board, make sure that the board fits closely to the enclosure (top, bottom, and both sides). Allowable clear ance between the enclosure and board is 1.5 mm at the maximum. The clearance of 50 mm between the intrinsically safe cir cuit and non-intrinsically safe circuit may not be sufficient when a motor circuit or high-voltage circuit is installed nearby. In this case, provide a wider clearance between the circuits referring to 5 (3) Minimum Parallel Distance between the Intrinsically Safe Circuit and Other Circuits. (4) In order to prevent contact between intrinsically safe circuits and nonintrinsically safe circuits, mount EB3C units with terminals arranged in the same direction. Intrinsically Safe Circuit Applicable Switches Push-pull Switches Control Switches Sensing Switches Twisting Switches ever and Slide Switches Displacement Switches evel Switches Others Pushbutton, Foot, Trigger, Rocker, Grip Rotary, Selector, Cam, Drum, Thumb wheel Toggle, Multidirectional, Wobble stick, ever, Slide switch Microswitch, imit, Magnetic proximity, Door, Reed, Mercury iquid level Pressure, Temperature ote: For installation in hazardous areas and connection to the EB3C, use switches which are certified, approved, or considered to be simple apparatus in relevant standards in each country. (2) When the switch has internal wiring or lead wire, make sure that the values of internal inductance (i) and capacitance (Ci) are within the certified values. (3) Enclose the switch contact s bare live part in an enclosure of I0 or higher protection. (4) Depending on the explosion-protection specifications according to TIIS, the exposed area of plastic switch opera tor is limited as follows: Exia II CT6 (EBZ-A): 20 cm 2 maximum Exia II BT6 (EBZ-A1): 0 cm 2 maximum (5) Attach the certification mark supplied with the EB3C on the EBZ-A or EBZ-A1 switch (for Japan application). (6) When the switch operator of plastic enclosure has a wider exposed area than the following limits, attach a caution label as shown below. on-intrinsically Safe Circuit EB3C EB3C EB3C EB3C EB3C II C: 20 cm 2 maximum II B: 0 cm 2 maximum Caution To prevent electrostatic charges, do not rub the switch surface during operation. Use a soft cloth dipped with water for cleaning. Intrinsically Safe Circuit Caution abel Example (5) Maintain at least 6 mm (or 3 mm according to IEC : 1) clearance between the terminal of intrinsically safe circuit and the grounded metal part of a metal enclosure, and between the relay terminal block of an intrinsically safe circuit and the grounded metal part of a metal enclosure. (6) For installing the EB3C, mount on a 35-mm-wide DI rail or directly on a panel using screws. Make sure to install securely to withstand vibration. When mounting on a DI rail, push in the clamp completely. Use the B6 end clips on both sides of the EB3C to prevent from moving sideways. (7) Excessive extraneous noise may cause malfunction and damage to the EB3C. When extraneous noise activates the voltage limiting circuit (thyristor), remove the noise source and restore the power. 2. Terminal Wiring (1) Using a ø5.5 mm or smaller screw driver, tighten the termi nal screws (including unused terminal screws) to a torque of 0.6 to 1.0 m (recommended value). (2) Make sure that I0 is achieved when wiring. Use insulation tubes on bare crimping terminals. (3) To prevent disengaged wires from contacting with other intrinsically safe circuits, bind together the wires of one intrinsically safe circuit. (4) When the adjacent terminal is connected to another intrinsi cally safe circuit, provide an insulation distance of at least 6 mm. (7) For the 1-circuit separate wiring, a resistor to prevent reed switch contact welding and an ED miniature pilot lights can be connected in series with the contact. See below. Use the terminal screw of M3 or larger. Applicable Resistor Ratings Resistance 0Ω maximum Rated Wattage 0.5 to 3W Model Metal (oxide) film resistors R Reed Switch Terminal Block EB3C Applicable ED IDEC s I series ED miniature pilot lights. See pages 14 and 17.

11 EB3C Relay Barrriers Operating Instructions 4. Output Specifications (1) When wiring the output from the EB3C, connect the non-intrinsically safe circuit to terminals A and C. The EB3C out put circuit is not equipped with short-circuit protection. If required, provide a protection in the external circuit. (2) Relay Output Some types of loads generate reverse emf (such as sole noids) or cause a large inrush current (incandescent lamps), resulting in a shorter operation life of output relay contacts. The operation life of contacts can be extended by preventing the reverse emf using a diode, RC, or varistor, or by suppressing the inrush current using a resistor or R. Contacts are made of gold-clad silver. When using at a small current and a low voltage (reference value: 0.1 ma, 0.1V), test the contact on the actual circuit in advance. (3) Transistor Output When connecting a small load, the load may not turn off because of a leakage current, even though the transistor output is turned off. If this is the case, connect a resistor in parallel with the load to bypass the leakage current. When an excessively high voltage (clamps at 33V, 1W) or a reverse voltage is applied to the output terminals, the clamping circuit or output transistor may be damaged. When driving an inductive load, be sure to connect a diode across the load to absorb reverse emf. An oad Cn : Surge Absorber Example of Overvoltage Absorption Circuit (4) In the common wiring only models, the output terminals are not isolated from each other. (5) When connecting the connector model EB3C s in parallel, use one power supply to power the EB3C s. Do not connect any wiring to the and terminals. 5. Wiring for Intrinsic Safety (1) The voltage applied on the general circuit connected to the nonintrinsically safe circuit terminals of the EB3C relay bar rier must be 250V AC, 50/60Hz, or 250V DC at the maxi mum under any conditions, including the voltage of the input power and the internal circuit. (2) When wiring, take into consideration the prevention of elec tromagnetic and electrostatic charges on intrinsically safe circuits. Also, prevent intrinsically safe circuits from contact ing with other circuits. (3) The intrinsically safe circuits must be separated from non-intrinsically safe circuits. Contain intrinsically safe circuits in a metallic tube or duct, or separate the intrinsically safe cir cuits referring to the table below. ote: Cables with a magnetic shield, such as a metallic sheath, prevent electromagnetic induction and electrostatic induction, however, a nonmagnetic shield prevents electrostatic induction only. For non-magnetic shields, take a preventive measure against electro magnetic induction. Finely twisted pair cables prevent electromagnetic induc tion. Adding shields to the twisted pair cables provides pro tection against electrostatic induction. Minimum Parallel Distance between the Intrinsically Safe Circuit and Other Circuits (mm) Voltage and Current of Other Circuits Over 0A 0A or less 50A or less A or less Over 440V V or less V or less V or less V or less (4) When identifying intrinsically safe circuits by color, use light blue terminal blocks and cables. (5) When using two or more EB3C s to set up one intrinsically safe circuit in the common wiring configuration, interconnect two neutral terminals (1 through ) on each EB3C between adjacent EB3C s in parallel. (6) Make sure that the power of the EB3C and contact are turned off before starting inspection or replacement. (7) When wiring the intrinsically safe circuit, determine the dis tance to satisfy the wiring parameters shown below. ote that parameters are different between separate wiring and common wiring. a) Wiring capacitance Cw Co (Ci + 2 nf) Co: Maximum external capacitance of the EB3C Ci: Internal capacitance of the switch : The number of switches connected in series or parallel (the number is infinite) b) Wiring inductance w o (i + 5 µh) o: Maximum external inductance of the EB3C i: Internal inductance of the switch : The number of switches connected in series or parallel (the number is infinite) c) Wiring resistance Rw Rw: Allowable wiring resistance d) Allowable wiring distance D (km) is the smallest value of those calculated from the capacitance, inductance, and resistance. D Cw/C C (nf/km): Capacitance of cable per km D w/ (mh/km): Inductance of cable per km D Rw/2R R (Ω/km): Resistance of cable per km ote: For the details of wiring the intrinsically safe circuits, refer to a rel evant test guideline for explosion-proof electric equipment in each country. (8) Applicable Wire Size 0.5 to 2.0 mm 2 (AWG20 to AWG14): two wires However, one wire for 2.0 mm 2 (AWG14) Mounting Bracket The following mounting brackets can be used to install the EB3C relay barriers and EB3 lamp barriers on the mounting holes of IBRC contact signal transducer, IBP pilot relay barrier, and IBZ buzzer. o. of Channels Part o. Dimension (mm) A B C 1 EBZ-K EBZ-K EBZ-K EBZ-K EBZ-K EBZ-K Dimensions C B A ø5 (four) 7 M4 (two or four) : EBZ-K only All dimensions in mm. 11

12 EB3 amp Barriers 126 types of pilot lights and buzzers can be connected and used in Zone 0 areas. Illuminated pushbuttons and illuminated selector switches can be connected by combining with the EB3C relay barrier. Explosion protection amp Barrier [Exia] II C Pilot ight (separate wiring) Exia II CT6 Pilot ight (common wiring) Exia II CT4 Illuminated Pushbutton Exia II CT4 Illuminated Selector Switch Exia II CT4 Buzzer (separate wiring)* Exib II CT6 IEC6007 compliant. 8- and 16-channel are available in common wiring, ideal for connection to PCs. 16-circuit also available with a connector. Universal AC power voltage (0 to 240V AC) o grounding required. IDEC s original spring-up terminal minimizes wiring time. Installation 35-mm-wide DI rail mounting or direct screw mounting. ø6, ø8, ø, ø22 and ø30 pilot lights available. Illuminated pushbuttons and illuminated selector switches can be connected by combining with the EB3C relay barrier. Illumination colors: Amber, blue, green, red, white, and yellow (pushlock turn reset: red only) Buzzers are available in intermittent and continuous sounds. ø30 mounting hole. Connector Model Global usage IECEx USA: FM, U Europe: CE marking, ATEX * Buzzers are certified by TIIS only. Other ex-proof China: CQST certifications pending. Korea: KCS * Buzzers cannot be used in Zone 0 areas. Taiwan: TS Japan: TIIS Ship class: K (Japan), KR (Korea) 12

13 EB3 amp Barrriers amp Barriers Power Voltage Connection to on-intrinsically Safe Circuit 0 to 240V AC Terminal 24V DC Terminal Connector Input Source Sink Source Sink Input Wiring Method (ote) Separate/Common Wiring Compatible umber of Channels Part o. Weight (g) 1 EB3-S01SA EB3-S02SA EB3-S03SA 10 5 EB3-S05SA EB3-S06SA EB3-S08SA 330 EB3-0SA 360 Common Wiring Only 8 ( ) EB3-S08CSA 260 Separate/Common Wiring Compatible 1 EB3-S01KA EB3-S02KA EB3-S03KA 10 5 EB3-S05KA EB3-S06KA EB3-S08KA 330 EB3-0KA 360 Common Wiring Only 8 ( ) EB3-S08CKA 260 Separate/Common Wiring Compatible Common Wiring Only Separate/Common Wiring Compatible 1 EB3-S01SD EB3-S02SD EB3-S03SD EB3-S05SD EB3-S06SD EB3-S08SD 3 EB3-0SD ( ) EB3-S08CSD ( ) EB3-6CSD EB3-S01KD EB3-S02KD EB3-S03KD EB3-S05KD EB3-S06KD ( ) EB3-S08KD 3 EB3-0KD EB3-S08CKD 250 Common Wiring Only 16 ( ) EB3-6CKD 350 Source 16 ( ) EB3-6CSD-C 350 Common Wiring Only Sink 16 ( ) EB3-6CKD-C 350 Buzzers cannot be connected in common wiring. ote: Source input model can be connected with sink output PC. Sink input model can be connected with source output PC. Accessories ame Part o. Ordering o. Package Quantity Description BAA00 BAA000 Aluminum (1m long) DI Rail BA000 BA0000 Steel (1m long) End Clip B6 B60 For fastening EB3 units on the DI rail. 13

14 EB3 amp Barrriers Pilot ights, Illuminated Pushbuttons, Illuminated Selector Switches, and Buzzers Unit Pilot ight Miniature Pilot ight Illuminated Pushbutton Illuminated Selector Switch (ote 3) Buzzer Size ø30 ø22 ø ø8 ø6 ø30 Series (ote 1) TW HW W UP Shape Operation Mode Contact Ordering o. (ote 2) Dome EB3P-A1- Square EB3P-U3B- Rectangular w/metal Bezel EB3P-U4- Dome w/diecast Sleeve EB3P-AD1- Flush EB3P-AW1- Flush (Marking Type) EB3P-AW1B- Dome EB3P-AW2- Square Flush (Marking Type) EB3P-UW1B- Round Flush EB3P-HW1- Dome EB3P-HW2- Square Flush EB3P-HW4- Round EB3P-W1- Square EB3P-W2- Round w/square Bezel EB3P-W3- Extended I-18- Coned I-1- Flush I-87- Extended I-88- Coned I-8- Flush I-67- Extended I-68- Coned I-6- Extended Momentary 1O-1C EB3P-BA211- ens Color/ Illumination Color Code A: Amber G: Green R: Red S: Blue W: White Y: Yellow A: Amber G: Green R: Red W: White Y: Yellow A: Amber G: Green R: Red S: Blue W: White Y: Yellow (ote 3) Maintained 1O-1C EB3P-BAO211- (ote 4) Operation Mushroom Pushlock Turn Reset 1O-1C EB3P-BAV311-R Red only (ote 5) Momentary 1O-1C EB3P-BAW211- A: Amber G: Green (ote 3) R: Red Extended TW S: Blue Maintained 1O-1C EB3P-BAOW211- W: White Y: Yellow (ote 4) Mushroom Pushlock Turn Reset 1O-1C EB3P-BAVW411-R Red only (ote 5) ø22 Momentary 1O EB3P-BH1W1- (ote 3) HW Round Maintained 1O EB3P-BHA1W1- (ote 4) W Round Momentary DPDT EB3P-B1W1- (ote 3) Maintained DPDT EB3P-BA1W1- (ote 4) Square Momentary DPDT EB3P-B2W1- (ote 3) Maintained DPDT EB3P-BA2W1- (ote 4) ø30 Round 2-position 1O-1C EB3P-SA211- Maintained A: Amber 3-position 2O EB3P-SA320- G: Green Maintained 2-position 1O-1C EB3P-SAW211- R: Red Maintained 2-position, return from right 1O-1C EB3P-SAW2111- S: Blue Spring return from right 3-position 2O W: White EB3P-SAW320- Maintained TW Round Y: Yellow 3-position, return from right 2O EB3P-SAW3120- Spring return from right ø22 3-position, return from left 2O EB3P-SAW3220- Spring return from left 3-position, 2-way return 2O EB3P-SAW way spring return HW Round 2-position 1O-1C EB3P-SHW211- Maintained 3-position 2O EB3P-SHW320- Maintained W Round 2-position DPDT EB3P-W2- Maintained Round w/square Bezel 3-position DPDT EB3P-S3W3- Maintained ø30 Continuous sound EB3P-ZU12C Intermittent sound (approx. 3 Hz) EB3P-ZU12F ote 1: Codes, TW, HW, W, and UP are the series names of IDEC s switches and pilot lights. ote 2: Specify a color code in place of. ote 3: Momentary operation mode the contact operates when the button is pressed. When the button is released, the contact goes back to the original position. ote 4: Maintained operation mode the contact operates when the button is pressed, and maintains the position even when the button is released. Re-pressing the button releases the contact. ote 5: Pushlock turn reset operation mode the button is held depressed when pressed, and released by turning clockwise. ote 6: Illuminated selector switches have a knob operator. ote 7: amp barrier and relay barrier need to be connected when using the illuminated pushbutton and illuminated selector switch. Accessories ame Ordering o. Package Quantity Remarks ED amp EBZ-D- 1 Specify a color code in place of in the Ordering o. A: amber, G: green, R: red, S: blue, W: white Static Electricity Caution Plate EBZ- Polyester 20 (W) x 6 (H) mm ote: Use a pure white (PW) ED lamp for yellow (Y) illumination. Approx. 3 Hz 14

15 EB3 amp Barrriers Explosion-Protection and Electrical Specifications of amp Barrier Explosion Protection Degree of Protection amp Barrier Installation ocation Pilot ight, Illuminated Switch Buzzer Intrinsic safety type I0 (IEC6052) Safe indoor place (non-hazardous area) For zone 0, 1, 2 hazardous areas For zone 1, 2 hazardous areas on-intrinsically Safe Circuit Maximum Voltage (Um) 250V AC 50/60Hz, 250V DC Operation Input O, Output O (1:1) Intrinsically Safe Circuits (Output) Wiring Method 1-channel Separate Wiring Rated Operating Voltage 12V DC Rated Operating Current ma DC ±20% Maximum Output Voltage (Uo) 13.2V DC 16-channel Common Wiring Maximum Output Current (lo) 14.2 ma ma Maximum Output Power (Po) 46. mw 750 mw Maximum External Capacitance (Co) (ote) 470 (470) nf 40 (365) nf Maximum External Inductance (o) (ote) 87.5 (87.5) mh 0.6 (0.425) mh Allowable Wiring Resistance (Rw) 200/(n+1)Ω (n = number of common channels) Maximum Channels per Common ine 8 (16 maximum) Pilot light: 3.5V, 8.5 ma Voltage and Current when Connecting Control Units Miniature pilot light: 2V, ma Illuminated switch: 3.5V, 8.5 ma Buzzer: 6.5V, 5.5 ma Rated voltage: 24V DC on-intrinsically Safe Circuits Rated current: 5 ma (Signal Input) (connector model: 4 ma) ote: Values in ( ) are those approved by TIIS (Technology Institution of Industrial Safety, Japan). General Specifications of amp Barrier Power Voltage Type AC Power DC Power Rated Power Voltage 0 to 240V AC ( 15 to +%) 24V DC (±%) Allowable Voltage Range 85 to 264V AC 21.6 to 26.4V DC Rated Frequency Inrush Current Dielectric Strength (1 minute, 1 ma) Operating Temperature Storage Temperature Operating Humidity Atmosphere Pollution Degree Insulation Resistance Vibration Resistance (damage limits) Shock Resistance (damage limits) Terminal Style Mounting Power Consumption (approx.) 50/60 Hz (allowable range: 47 to 63 Hz) A (0V AC) A 20A (200V AC) Between AC power and signal input: 1500V AC Between intrinsically safe circuit and non-intrinsically safe circuit: V AC (except for DC power and signal input) 20 to +60 C (no freezing) 20 to +60 C (no freezing) 45 to 85% RH (no condensation) 800 to 10 hpa 2 (IEC60664) MΩ minimum (500V DC megger, between the same poles as the dielectric strength) Panel mounting: to 55 Hz, amplitude 0.75 mm (2 hours each on X, Y, Z) DI rail mounting: to 55 Hz, amplitude 0.35 mm (2 hours each on X, Y, Z) Panel mounting: 500 m/s2 (3 times each on X, Y, Z) DI rail mounting: 300 m/s2 (3 times each on X, Y, Z) M3 screw terminal 35-mm-wide DI rail or panel mounting (M4 screw) 8.8 VA (EB3-0SA at 200V AC) 5.2 W (EB3-6CSD at 24V DC) General Specifications of Pilot ight, Illuminated Pushbutton, Illuminated Selector Switch, and Buzzer Operating Temperature 20 to +60 C (no freezing) Operating Humidity 45 to 85% RH (no condensation) EB3P: 00V AC Dielectric Strength I: 500V AC (1 ma, 1 minute) (between intrinsically safe circuit and dead parts) MΩ minimum (500V DC megger, between the same Insulation Resistance poles as the dielectric strength) I5 (IEC6052) (except for terminals) Degree of Protection EB3P-U/I: I0 Pilot light: Amber, blue, green, red, white, yellow ens/illumination Color Miniature pilot light: Amber, green, red, white, yellow 1-channel Separate Wiring Maximum input voltage (Ui): 13.2V Maximum input current (Ii): 14.2 ma Maximum input power (Pi): 46. mw Internal capacitance (Ci): 2 nf Intrinsic Safety Internal inductance (i): 5 µh Ratings and 16-channel Common Wiring Parameters Maximum input voltage (Ui): 13.2V Maximum input current (Ii): ma Maximum input power (Pi): 750 mw Internal capacitance (Ci): 32 nf Internal inductance (i): 80 µh I5 (IEC6052) (except for terminals) Degree of Protection EB3P-SAW : I4 Illumination Color Amber, blue, green, red, white, yellow Contact 12V DC ±%, ma ±20% Voltage/Current (when connecting to the EB3C) Pilot ight and Miniature Pilot ight Illuminated Switch Buzzer Intrinsic Safety Ratings and Parameters 16-channel Common Wiring Maximum input voltage (Ui): 13.2V Maximum input current (Ii): ma Maximum input power (Pi): 750 mw Internal capacitance (Ci): 32 nf Internal inductance (i): 80 µh I0 (IEC6052) (except for terminals) Degree of Protection Sound Volume 75 db minimum (at 1 m) Sound Source Piezoelectric oscillator (continuous or intermittent) 1-channel Separate Wiring Maximum input voltage (Ui): 13.2V Intrinsic Safety Ratings Maximum input current (Ii): 14.2 ma and Parameters Maximum input power (Pi): 46. mw Internal capacitance (Ci): 260 nf Internal inductance (i): 80 mh Weight 0g ote: Connect buzzers in separate wiring. Buzzers cannot be used in common wiring. Certification o. Certification Organization Explosion Protection Certification o. FM Class I, II, III Div Group A, B, C, D, E, F, G (buzzer: pending) Class I, Zone 0 AEx [ia] II C U Class I, II, III Div. 1 E2347 Group A, B, C, D, E, F, G (except buzzer) Class I, Zone 0 [AEx ia] II C PTB (ATEX) amp barrier: [Exia] II C PTB0 ATEX2046 Buzzer: Exib II CT6 Pending CQST amp barrier: [Exia Ga] II C CEX Buzzer: Exib II CT6 Pending KCS amp barrier: [Exia] II C 14-AV4B Buzzer: Exib II CT6 Pending amp barrier: [Exia] II C T0541 Pilot light/miniature pilot light: (separate wiring:) Exia II CT6 T6361 TIIS Pilot light/miniature pilot light: (common wiring:) Exia II CT4 T6360 Illuminated switch: Exia II CT4 T6362 Buzzer: Exib II CT6 T077 K amp barrier: [Exia] II C Type Test o. 13T606 Buzzer: Exib II CT6 Pending KR amp barrier: [Exia] II C TYK17821-E003 Buzzer: Exib II CT6 Pending ote: Illuminated switches, pilot lights, and miniature pilot lights are certified by TIIS and K only. Other certification organizations regard these units as simple apparatus, and require no certification. Buzzers are certified by TIIS only. Other ex-proof certifications pending. 15

16 EB3 amp Barrriers Internal Circuit Block Diagram AC Power Source Input DC Power Sink Input Connector Wiring Source Input Hazardous Area Safe Area (on-hazardous Area) Green Yellow Yellow Yellow Green Yellow Yellow Yellow Green Yellow Yellow ~ ~ ~ S2 S3 + S2 S3 + 6 Dimensions Terminal EB3 S01 EB3 S02 EB3 S03 EB3 S05 EB3 S06 EB3 S08C EB3 S08 EB3 0 EB3 6C Intrinsic Safety Side: ight Blue ø4.4 ø6 hole (4) on-intrinsic Safety Side: Yellow Connector M3 ø6 Applicable Crimping Terminal ø3.2 min Mounting Hole ayout ( Mounting) 2-M4 tapped or 2-ø4.5 mounting holes 2-M4 tapped or 2-ø4.5 mounting holes 2-M4 tapped or 2-ø4.5 mounting holes 4-M4 tapped or 4-ø4.5 mounting holes EB3-6C -C 6 max ø4.4 holes 65 4-M4 or 4-ø4.5 holes 65 3 max. Stripping the Wire End Solid Wire 5.4 min. (4) 7 Mounting Hole ayout 6 to 8 mm 77.5 Stranded Wire (Ferrule) 6 to 8 mm 7 All dimensions in mm. 16

17 EB3 amp Barrriers Pilot ights ø30 EB3P-A1 Terminal Cover: AP-PV (sold separately) M3 Terminal Panel Thickness 0.8 to 7.5 ø30 EB3P-U4 Terminal Cover: AP-PV (sold separately) M3 Terminal Panel Thickness 0.8 to 4.5 ø30 EB3P-AD Terminal Cover: APD-PV (sold separately) M3.5 Terminal Panel Thickness 0.8 to 7.5 ø30 M3 Terminal EB3P-U3B Terminal Cover: AP-PV (sold separately) Panel Thickness 0.8 to 5.5 ø ø24.8 ø35 ø ø22 EB3P-AW1 ø22 EB3P-AW1B ø22 EB3P-AW2 ø22 EB3P-UW1B Terminal Cover (supplied) APS-PV Panel Thickness 1 to 6 Terminal Cover (supplied) APS-PV Panel Thickness 1 to Terminal Cover (supplied) APS-PV Panel Thickness 1 to Terminal Cover (supplied) APS-PV Panel Thickness 1 to 6 M3.5 Terminal ø24 ø2 37 M3.5 Terminal Marking Plate: ø15.5 ø22 EB3P-HW1/EB3P-HW2/EB3P-HW4 Terminal cover attached. Panel Thickness 0.8 to 6 M3.5 Terminal Gasket Flush Dome Round/Dome Square ocking Ring ø2 ø24 ø2 37 M3.5 Terminal 7.2 ø ø23.6 ø2 EB3P-W1/EB3P-W2/EB3P-W3 Gasket ocking Ring M3.5 Terminal Panel Thickness 0.8 to 6 Round Marking Plate: 22 Square Round w/square bezel X2 X M3 Terminal ø Miniature Pilot ights (Terminal cover not available) ø I-18 ø I-1 ø8 I-87 ø8 I-88 M.0 Panel Thickness 0.6 to 4 + Terminal M.0 Panel Thickness 0.6 to 4 + Terminal ø. M8 P0.75 Panel Thickness 0.6 to 4 + Terminal ø M8 P0.75 Panel Thickness 0.6 to 4 + Terminal ø 7 ø ø ø8 I-8 ø6 I-67 ø6 I-68 ø6 I-6 + Terminal M8 P0.75 Panel Thickness 0.6 to 4 ø8.1 ø M6 P Terminal Panel Thickness 0.6 to 4 ø7.5 M6 P Terminal Panel Thickness 0.6 to 4 ø7.5 M6 P Terminal Panel Thickness 0.6 to 4 ø6 ø Illuminated Pushbuttons ø30 EB3P-BA211/BAO211 ø30 EB3P-BAV311-R Terminal cover: -V4 (2 pcs.) (sold separately) Terminal cover: -V4 (2 pcs.) (sold separately) M3.5 Terminal M3.5 Terminal M3 Terminal Panel Thickness 0.8 to 7.5 M3 Terminal Panel Thickness 0.8 to 7.5 ø24 ø35 ø40 ø ø22 EB3P-BAW211/BAOW211 ø22 EB3P-BAVW411-R ø22 EB3P-BH1W1/BHA1W1 Terminal cover attached. Terminal cover attached. Terminal cover attached. M3.5 Terminal Adjustment Panel Thickness M3.5 Terminal Adjustment Panel Thickness 30 Panel Thickness 0.8 to 6 Ring 1 to 6 M3.5 Terminal 30 Ring 1 to 6 Reset 75 ocking Ring ever Stop ø24 40 OCK ø22 EB3P-B1W1/BA1W1 ø22 EB3P-B2W1/BA2W1 Terminal cover: W-V2M (sold separately) Terminal cover: W-V2M (sold separately) M3 Terminal Panel Thickness 0.8 to 6 M3 Terminal Panel Thickness 0.8 to 6 R18 OCK R18 OCK ø ø24 ø2 37 ø ø All dimensions in mm. 17

18 EB3 amp Barrriers Illuminated Selector Switches ø30 M3 Terminal EB3P-SA211/EB3P-SA320 Terminal cover: -V4 (2 pcs.) (sold separately) M3.5 Terminal Panel Thickness 0.8 to 7.5 ø22 M3.5 Terminal EB3P-SAW Terminal cover attached Panel Thickness 1 to 6 ø25 ø35 ø40 ø24 ø ø22 M3.5 Terminal EB3P-SHW211/EB3P-SHW320 Terminal cover attached 6.4 Panel Thickness 0.8 to OCK 41.4 ø2 ø22 M3 Terminal 23.2 EB3P-W2/EB3P-S3W3 Terminal cover: W-V2M (sold separately) 25.4R18 OCK Panel Thickness 0.8 to ø25.8 Buzzer ø30 EB3P-ZU12C/EB3P-ZU12F Terminal cover: AZ-V5 (sold separately) ED amp EBZ-D Panel Thickness 0.8 to M3.5 Terminal ø50 Illumination Color IDEC Exi Intrinsic Safety Identification: ight Blue Illumination color is marked on the terminal. Polarity Identification Pilot ights/illuminated Pushbuttons/Illuminated Selector Switches Positive terminal: X1 egative terminal: X2 Miniature Pilot ights Positive terminal: ong pin terminal egative terminal: Short pin terminal Pin Terminals Positive Terminal Panel Cut-out Pilot ights/illuminated Pushbuttons/Illuminated Selector Switches/Buzzers ø30 ø R0.8 max ø22 ø22.3 R0.8 max ight Blue Marking egative Terminal Buzzer Positive terminal: + egative terminal: ED amp + Positive egative Miniature Pilot ights ø +0.3 ø.1 0 ø ø8.1 0 ø ø6.1 0 The 4.8 or 3.2 recess is needed only when using an anti-rotation ring or a nameplate with an anti-rotation projec tion. EB3P-HW does not have an anti-rotation groove. amp Test When checking the lamp lighting without using the EB3 lamp barrier, first make sure that the atmosphere is free from explosive gases. Connect a 12V DC power supply and a pro tection resistor of 1 kω in series to turn on the pilot light. Pilot ight 1 kω 12V DC 18

19 EB3 amp Barrriers on-intrinsically Safe External Input Wiring Examples 6-channel Source (Ex.: EB3-S06SA) 8-channel Common Wiring, Source (Ex.: EB3-S08CSD) 6-channel Sink (Ex. EB3-S06KA) P7 P S2 S3 S4 C4 S5 C5 S6 C S2 S3 S4 S5 S6 S7 S S2 S3 S4 C4 S5 C5 S6 C6 0 to 240V AC 24V DC 0 to 240V AC 16-channel Common Wiring, Source (Ex.: EB3-6CSD) 16-channel Common Wiring, Sink (Ex.: EB3-6CKD) P7 P8 1 2 P P7 P8 1 2 P S2 S3 S4 S5 S6 S7 S8 S C4 + S2 S3 S4 S5 S6 S7 S8 S C4 24V DC 24V DC ote: Source input model can be connected to PC sink output model C terminal is the negative common line. Connector Wiring Terminal Arrangement EB3-6CSD-C 1 20 EB3-6CKD-C 1 20 CH CH CH11 CH12 CH13 CH14 CH15 CH16 S C C S2 S3 S4 S5 S6 S7 S8 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 COM +V + CH CH CH11 CH12 CH13 CH14 CH15 CH16 S C C + Internal Circuit S2 S3 S4 S5 S6 S7 S8 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 COM V Internal Circuit EB3 EB3 +V () -6 COM () COM () -6 Output Q0-Q15 COM COM Output Q0-Q PC 1 2 PC CHn Sn COM + Internal Circuit Internal Circuit CHn Sn COM + ote: Sink input model can be connected to PC source output model C terminal is the positive common line. Wiring Example with IDEC s MicroSmart PC Output Modules FC4A-T16K3 Terminal Output 20 Q0 1 Q 18 Q1 17 Q11 16 Q2 15 Q12 14 Q3 13 Q13 12 Q4 11 Q14 Q5 Q15 8 Q6 7 Q16 6 Q7 5 Q17 4 COM 3 COM 2 +V 1 +V EB3-6CSD-C Input Terminal 20 S 1 S S S S S6 4 S S COM 4 C 3 +V 2 C 1 FC4A-T16S3 Terminal Output 20 Q0 1 Q 18 Q1 17 Q11 16 Q2 15 Q12 14 Q3 13 Q13 12 Q4 11 Q14 Q5 Q15 8 Q6 7 Q16 6 Q7 5 Q17 4 COM 3 COM 2 V 1 V EB3-6CKD-C Input Terminal 20 S 1 S S S S S6 4 S S COM 4 C 3 V 2 C 1 ote: The wiring in dashed line does not affect the operation of the EB3. Applicable connector is IDEC s JE1S-201. Output power for PC outputs is supplied by the EB3, therefore the PC output does not need an external power supply. 1

20 EB3 amp Barrriers Wiring Example of Intrinsically Safe External Outputs 1. Common Wiring (Maximum 16 circuits) (Buzzers cannot be wired in a common line.) All output lines are wired to a common line inside the intrinsically safe equipment (one common line per intrinsically safe circuit). S2 S3 S4 S5 S6 S7 S8 P7 P8 1 2 P 0 S C4 S2 S3 S2 S3 S4 C4 S5 C5 S6 C6 S2 S3 S4 C4 S5 C5 S6 C6 S7 P7 P8 1 2 P P7 7 P8 8 P P7 7 P8 8 P 0 P7 P8 1 2 P7 P8 1 2 C7 S8 C8 S C S2 S3 S4 S5 S6 S7 S8 All input lines are wired to a common line outside the intrinsically safe equipment (one common line per intrinsically safe circuit). 1 2 S2 S3 S4 S5 S6 S7 S8 S C4 S2 S3 S2 S3 S4 C4 S5 C5 S6 C6 S2 S3 S4 C4 S5 C5 S6 C6 S7 C7 S8 C8 S C 0 0 S2 S3 S4 S5 S6 S7 S8 2. Separate Wiring Each output line of the EB3 makes up one independent intrinsically safe circuit of a pilot light or buzzer P7 7 P8 8 P 0 S2 S3 S2 S3 S4 C4 S5 C5 S6 C6 S2 S3 S4 C4 S5 C5 S6 C6 S7 C7 S8 C8 S C 0 0 ote: When using two or more EB3's to set up one intrinsically safe circuit in the common wiring configuration, interconnect two neutral terminals (1 through ) on each EB3 between adjacent EB3's in parallel. 3. Wiring Illuminated Pushbuttons and Illuminated Selector Switches (A maximum of 16 channels of EB3 and EB3C can be wired to a common line.) The following example illustrates the wiring for a total of contacts used by three illuminated pushbuttons (B1 to B3) and three illuminated selector switches ( to S3). B1 B2 B3 S2 S3 B1 B2 B3 S2 S3 Diagram Symbols EB3P consisting of one enclosure One intrinsically safe circuit (+)(ñ) 1 S2 2 S3 3 S4 4 C4 S5 5 C5 S6 6 C6 (+)(ñ) A1 1 A2 2 A3 3 A4 4 C4 A5 5 C5 A6 6 C6 P7 A7 C7 7 A8 P8 8 C8 P A C 0 A 0 One intrinsically safe circuit is a connection consisting of one or more illuminated units connected to a common line. 20

21 2 1 EB3 amp Barrriers Recommended Connector Cable for Connector Models I/O Terminal Cable Description o. of Poles ength (m) Part o. Shape Applicable Model 0.5 FCZ-H050A20 With Shield 1 FCZ-H0A20 IDEC MicroSmart 2 FCZ-H200A20 I/O Module 3 FCZ-H300A FCZ-H050B20 Without Shield Cable with Crimping Terminal 40-pin Cable for PC 20 1 FCZ-H0B20 2 FCZ-H200B20 3 FCZ-H300B20 1 BXZ-H0E4 2 BXZ-H200E4 3 BXZ-H300E4 1 BXZ-H0B 2 BXZ-H200B 3 BXZ-H300B Connector B Connector A IDEC MicroSmart I/O Module Terminal Mitsubishi A Series Output Module (sink) EB3-6CSD-C BXZ-H B Internal Connection Connector A IDEC JE1S Fujitsu Connector FC-367J040-AU/F B (Connecting Side) (Connecting Side) (Connecting Side) A Connector B IDEC JE1S-201 FCZ-H E Internal Connection IDEC Connector JE1S (Connecting Side) FCZ-H A, FCZ-H B Internal Connection IDEC Connector JE1S-201 Y-shaped Crimping Terminal (marking tube number) (Connecting Side) (Straight wire connection BXZ-H B: number of cable with crimping terminal) IDEC Connector JE1S (Connecting Side) (Connecting Side) 21

22 EB3 amp Barrriers Operating Instructions 1. Installation of EB3 amp Barriers (1) The EB3 can be installed in any direction. (2) Install the EB3 lamp barrier in a safe area (non-hazard ous area) in accordance with intrinsic safety ratings and parameters. To avoid mechanical shocks, install the EB3 in an enclosure which suppresses shocks. (3) When installing or wiring the EB3, prevent electromag netic and electrostatic inductions in the intrinsically safe circuit. Also prevent the intrinsically safe circuits from contacting with another intrinsically safe circuit and any other circuits. Maintain at least 50 mm clearance, or provide a metallic separating board between the intrinsically safe circuit and non-intrinsically safety circuit. When providing a metallic separating board, make sure that the board fits closely to the enclosure (top, bottom, and both sides). Allowable clearance between the enclosure and board is 1.5 mm at the maximum. The clearance of 50 mm between the intrinsically safe circuit and non-intrinsically safe circuit may not be suffi cient when a motor circuit or high-voltage circuit is installed nearby. In this case, provide a wider clearance between the circuits referring to 6. (3) Minimum Parallel Distance between the Intrinsically Safe Circuit and Other Circuits. (4) In order to prevent contact between intrinsically safe cir cuits and non-intrinsically safe circuits, mount EB3 units with terminals arranged in the same direction. on-intrinsically Safe Circuit EB3 EB3 EB3 Intrinsically Safe Circuit EB3 EB3 Intrinsically Safe Circuit (5) Maintain at least 6 mm (or 3 mm according to IEC : 1) clearance between the terminal of intrinsically safe circuit and the grounded metal part of a metal enclosure, and between the relay terminal block of an intrinsically safe circuit and the grounded metal part of a metal enclosure. (6) For installing the EB3, mount on a 35-mm-wide DI rail or directly on a panel using screws. The EB3 can be installed in any direction. Make sure to install securely to withstand vibration. When mounting on a DI rail, push in the clamp completely. Use the B6 end clips on both sides of the EB3 to prevent from moving sideways. (7) Excessive extraneous noise may cause malfunction and damage to the EB3. When extraneous noise activates the voltage limiting circuit (thyristor), remove the noise source and restore the power. 2. Terminal Wiring (1) Using a ø5.5 mm or smaller screw driver, tighten the ter minal screws (including unused terminal screws) to a torque of 0.6 to 1.0 m (recommended value). (2) Make sure that I0 is achieved when wiring. Use insu lation tubes on bare crimping terminals. (3) To prevent disengaged wires from contacting with other intrinsically safe circuits, bind together the wires of one intrinsically safe circuit. (4) When the adjacent terminal is connected to another intrinsically safe circuit, provide an insulation distance of at least 6 mm. 3. Signal Input (1) Connect the EB3 to the switches or output equipment which have a low leakage current (0.1 ma maximum). (2) The EB3 is equipped with power supply. Do not apply external power to the EB3. (3) When connecting the EB3 s of connector model in paral lel, make sure that the same power supply is used. When using and terminals to supply power to out side equipment, maintain the current at 50 ma maxi mum. 4. Power Voltage (1) Do not apply an excessive power voltage, otherwise the EB3 may be damaged. (2) The EB3 of AC power type may operate at a low volt age (approx. 20V). 5. Pilot ights, Illuminated Switches, and Buzzers in the Hazardous Area (1) EB3P and I units shown on page 14 can be used with the EB3. Buzzers cannot be connected in common wiring. (2) Install the EB3P and I units on enclosures of I0 or higher protection. Use a metallic enclosure with magne sium content of 7.5% or less (steel and aluminum are acceptable). (3) When wiring, make sure of correct polarities of the EB3P and I. (4) Certification mark is supplied with the units. Attach it on the visible area of the EB3P or I (for Japan applica tion). (5) When connecting illuminated switches to the EB3 lamp barrier and the EB3C relay barrier, a maximum of 16 channels can be connected in common wiring. 22

23 EB3 amp Barrriers Operating Instructions 6. Wiring for Intrinsic Safety (1) The voltage applied on the general circuit connected to the nonintrinsically safe circuit terminals of the EB3 lamp barrier must be 250V AC, 50/60Hz, or 250V DC at the maximum under any conditions, including the voltage of the power line and the internal circuit. (2) When wiring, take into consideration the prevention of electromagnetic and electrostatic charges on intrinsically safe circuits. Also, prevent intrinsically safe circuits from contacting with other circuits. (3) The intrinsically safe circuits must be separated from nonintrinsically safe circuits. Contain intrinsically safe circuits in a metallic tube or duct, or separate the intrinsi cally safe circuits referring to the table at right. ote: Cables with a magnetic shield, such as a metallic sheath, prevent elec tromagnetic induction and electrostatic induction, however, a non-mag netic shield prevents electrostatic induction only. For non-magnetic shields, take a preventive measure against electromagnetic induction. Finely twisted pair cables prevent electromagnetic induc tion. Adding shields to the twisted pair cables provides protection against electrostatic induction. Minimum Parallel Distance between the Intrinsically Safe Circuit and Other Circuits (mm) (7) When wiring the intrinsically safe circuit, determine the dis tance to satisfy the wiring parameters shown below. ote that parameters are different between separate wiring and common wiring and depend on the connected units, such as pilot lights, illuminated pushbuttons, and buzzers. a) Wiring capacitance Cw Co Ci Co: Maximum external capacitance of the EB3 Ci: Internal capacitance of the connected unit b) Wiring inductance w o i o: Maximum external inductance of the EB3 i: Internal inductance of the connected unit c) Wiring resistance Rw Rw: Allowable wiring resistance d) Allowable wiring distance D (km) is the smallest value of those calculated from the capacitance, inductance, and resistance. D Cw/C C (nf/km): Capacitance of cable per km D w/ (mh/km): Inductance of cable per km D Rw/2R R (Ω/km): Resistance of cable per km ote: For the details of wiring the intrinsically safe circuits, refer to a rel evant test guideline for explosion-proof electric equipment in each country. Voltage and Current of Other Circuits Over 0A 0A or less 50A or less A or less Over 440V V or less V or less V or less V or less (4) When identifying intrinsically safe circuits by color, use light blue terminal blocks and cables. (5) When using two or more EB3 s to set up one intrinsi cally safe circuit in the common wiring configuration, interconnect two neutral terminals (1 through ) on each EB3 between adjacent EB3 s in parallel. (6) Make sure that the power of the EB3, pilot lights, and other connected units are turned off before starting inspection or replacement. Safety Precautions Do not use the EB3C Relay Barrier and EB3 amp Barrier for other than explosion protection purposes. Read the user s manual to make sure of correct operation before starting installation, wiring, operation, maintenance, and inspection of the EB3C Relay Barrier and EB3 amp Barrier. 23

24 EB3 Safety Relay Barriers Build a safety system in an explosive atmosphere. Explosion Protection Safety relay barrier Switch (EBZ-A) Switch (EBZ-A1) [Exia] II C Exia II CT6 Exia II BT6 Safety Performance Performance level e Category 4 Ensures explosion protection safety and machine safety in an explosive atmosphere. Machine safety system can be built in compliance with ISO Category 4, Performance level e. Safety input devices applicable in any explosive gas and hazardous areas are available. Available with auxiliary inputs (5 points) used to monitor the operating status of safety input devices. A wide variety of Japan TIIS-rated emergency stop switches and interlock switches are available. Global usage Explosion protection: Japan (TIIS), USA (U), Europe (ATEX), China (CQST),IEC Ex Machine safety: TÜV Rheinland o grounding required. Safety Relay Barriers Safety Input Points Safety Output Points Auxiliary Input Points (ote 1) Auxiliary Output Points (Relay Output) 2 2O Without Without 2 2O 5 (1 common) 5O (1 common) Reset (Start) (ote 2, ote 3) Auto reset (Auto start) Manual reset (Manual start) Auto reset (Auto start) Manual reset (Manual start) Part o. IEC Ex EB3-A2D EB3-M2D EB3-A2R5D EB3-M2R5D ote 1: A maximum of five monitor contacts from safety input devices can be connected to the auxiliary input terminals. In addition, non-safety input devices can also be connected to the auxiliary input terminals. ote 2: On auto reset (auto start) models, when the safety condition is met (two safety inputs are both on), safety outputs are turned on automatically. Connect the reset (start) input terminals Y1 and Y2 together except for the following cases: When connecting a contactor or force guided relay to the safety output of the EB3, connect the C contacts of the contactor or force guided relay to the reset (start) input terminals Y1 and Y2 of the EB3 for use as a backcheck input signal. ote 3: On manual reset (manual start) models, while the safety condition is met (two safety inputs are both on), safety outputs are turned on at the falling edge of the reset switch (start switch) signal (OFF O OFF) (start off check). Manual reset (manual start) models have a monitoring function of reset switch contacts (detection of welded contacts). Use O contacts of a momentary switch for the reset (start) input. When connecting a contactor or force guided relay to the safety output of the EB3, connect the C contacts of the contactor or force guided relay to the reset (start) input terminals Y1 and Y2 of the EB3 for use as a backcheck input signal. Selection Guide 1. Selecting the reset (start) function Auto reset (auto start): Select this model when connecting safety control devices, such as safety relay modules or safety controllers, to the EB3 safety outputs to set up a safety system, using the reset (start) function of the safety control device. Select this model when connecting contactors or force guided relays to the EB3 safety outputs to set up a safety system, and a risk assessment on the entire system has not found any safety problem in using auto reset (auto start). Manual reset (manual start): Select this model when connecting contactors or force guided relays to the EB3 safety outputs to set up a safety system, and a risk assessment on the entire system has found that manual reset (manual start) is necessary. 2. Selecting the auxiliary outputs Without auxiliary outputs: With auxiliary outputs: General Specifications Select this model when the operating status of safety input devices are not monitored. Select this model when the operating status of safety input devices are monitored or when non-safety input devices are also connected. Rated Power Voltage 24V DC Power Voltage Range 20.4 to 26.4V DC 20 to +60 C (no freezing) Operating Temperature U: 20 to +40 C (no freezing) Operating Humidity 45 to 85% RH (no condensation) Power Without auxiliary output 5.5W maximum Consumption With auxiliary output 7.0W maximum Contacts 13-14, O Safety Resistive 30V DC, 1A Rated oad Output Inductive DC-13, 24V, 1A Response Turn on 0 ms maximum (rated voltage) Turn off 20 ms maximum Contacts A* - 5O/1 common 24V DC, 3A, Auxiliary Rated oad Resistive common terminal 5A max. Output Response Turn on 15 ms maximum (rated voltage) Turn off ms maximum Mounting DI rail or panel mounting *: Channel os. 1 to 5 Explosion-Protection Specifications Explosion Protection [Exia] II C on-intrinsically Safe Circuit Maximum Voltage (Um) 250V (U: 125V) Intrinsically Safe Circuit Maximum Voltage (Uo) 13.2V Intrinsically Safe Circuit Maximum Current (Io) ma Intrinsically Safe Circuit Maximum Power (Po) 750 mw Intrinsically Safe Circuit Allowable Capacitance (Co) 0.4 µf (TIIS: 0.28 μf) Intrinsically Safe Circuit Allowable Inductance (o) 0.60 mh (TIIS: 0.56 mh) Intrinsically Safe Circuit Safety circuit (ote 1) Wiring Resistance (Rw) Auxiliary circuit (ote 2) ote 1: Ω maximum (500m maximum using a 1.25 mm2 cable) ote 2: 600/(+1)Ω maximum, where = the number of common channels Safety Specifications Category 4 Performance evel (P) e Mean Time to Dangerous Failure (MTTFd) 0 years Diagnostic Range % minimum Calculation conditions for MTTFd t cycle : Mean operation cycle = 1 hour h op : Mean operation hours per day = 24 hours d op : Mean operation days per year = 365 days ote: When t cycle is shorter than 1 hour, MTTFd will decrease. 24

25 EB3 Safety Relay Barrriers Certification o. Certification Organization Explosion Protection Certification o. Safety Relay Barriers [Exia] II C T8753 TIIS Switch (EBZ-A) [Exia] II CT6 T5758 Switch (EBZ-A1) [Exia] II BT6 T1561 [Exia] II C, [Exia D] IEC Ex PTB.0015 PTB II (1) G [Exia] II C II (1) D [Exia D] PTB 0 ATEX 2046 CQST [Exia] II C CEx U Class I, Zone 0, [AExia] II C Class I, II, III, Div. 1, Grps A, B, C, D, E, F and G E2347 Dimensions EB3-A2D EB3-M2D 65.0 M Mounting Hole ayout EB3-A2D EB3-M2D 75.0 EB3-A2R5D EB3-M2R5D 1.5 M EB3-A2R5D EB3-M2R5D Terminal Functions 24V DC Power Y1-Y2 Reset input (Start input) Safety input Safety input 2 1, 2 Signal ground P*-3 Auxiliary input Safety output Safety output 2 A*- Auxiliary output *: 1 to 5 2-M4 tapped or 2-ø4.5 drilled holes 65 2-M4 tapped or 2-ø4.5 drilled holes EB3 System Configuration Examples 1:1 connection with a safety input device, compliant with Category 4 Safety Input Device Hazardous Area on-hazardous Area EB3-A2D Barrier Safety Output Safety Control Device Reset (Start) Input Safety Output Backcheck Input Safety Contactor A safety relay module or safety controller is used to set up a safety circuit, using the reset (start) function of the safety relay module or safety controller. Safety Input Device EB3-M2D Barrier Safety Output Backcheck Input Reset (Start) Input Safety Contactor The reset (start) function is used to set up a safety circuit, without using a safety relay module or safety controller. Connection with multiple safety input devices, capable of monitoring up to 5 contact operations, compliant with Category 3 For monitoring operating statuses of safety input devices located in a non-hazardous area Safety Input Devices Connected in Series Hazardous Area Monitor on-hazardous Area EB3-A2R5D Barrier Safety Output Auxiliary Output (Monitor Output) Safety Control Device PC Safety Output Backcheck Input Reset (Start) Input Safety Contactor A safety relay module or safety controller is used to set up a safety circuit, using the reset (start) function of the safety relay module or safety controller. Safety Input Devices Connected in Series EB3-M2R5D Barrier Safety Output Backcheck Input Reset (Start) Input Safety Contactor PC The manual reset (manual start) function of the EB3 is used to set up a safety circuit, without using a safety control device. Monitor Auxiliary Output (Monitor Output) 25