For full product information, visit Use the SpeedSPEC Code for quick access to the specific web page.

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1 Safety Relays G9SX-GS G9SXGS For full product information, visit Use the SpeedSPEC Code for quick access to the specific web page. Safety Guard Switching Unit A safety measure for hazardous operations that does not lower productivity Two functions support two types of application: Auto switching: For applications where operators work together with machines Manual switching: For applications with limited operations External indicator outputs enable indicating the switching status of two safety input devices. Auxiliary outputs enable ing of safety inputs, safety outputs, and errors. Detailed L indications enable easy diagnosis. Logical connection allows complicated applications in combination with other G9SX-series Units. Certification for compliance with IEC/EN (SIL3), IEC/EN (SIL3), and EN (category 4). A Rapid Delivery Product: Select models are available for shipment today or within 3 to 5 days Specifications Ratings Power Input G9SX-GS6-T15- G9SX-EX- Rated supply voltage 24 VDC Operating voltage range -15% to 10% of rated supply voltage Rated power consumption* 5 W max. 2 W max. *Power consumption of loads not included. Inputs G9SX-GS6-T15- Safety inputs Operating voltage: 20.4 VDC to 26.4 VDC Mode selector input Internal impedance: Approx. 2.8 kω* Feedback/reset input *Provide a current equal to or higher than that of the minimum applicable load of the connected input control device. Outputs Instantaneous safety outputs *1 -delayed safety outputs *1 Auxiliary outputs (for input, output and error ing) External indicator outputs G9SX-GS6-T15- P channel MOS FET transistor outputs Load current: 0.8 A DC max. *2 PNP transistor outputs Load current: 100 ma max. P channel MOS FET transistor outputs Connectable indicators Incandescent lamp: 24 VDC, 3 to 7 W L lamp: 10 to 300 ma DC *1. While safety standstill detection outputs are in the state, the following signal sequence is output continuously for diagnosis. When using these safety outputs as input signals to control devices (i.e. Programmable Controllers), consider the pulse signal shown at right. *2. The following derating is required when Units are mounted side-by-side. G9SX-GS6-T15- : 0.4 A max. load current 360 µs max. Approx. 100 ms -15

2 Specifications (continued) Expansion Unit Rated load Rated carry current Maximum switching voltage G9SX-EX- 250 VAC, 3 A/30 VDC, 3 A (resistive load) 3 A 250 VAC, 5 VDC Logical Connection G9SX-GS6-T15- Number of Units connected per logical output 4 Units max. --- Total number of Units connected by logical *1 20 Units max. --- Number of Units connected in series by logical 5 Units max. --- G9SX-EX- Max. number of Expansion Units connected * Units max. Maximum cable length for logical input 100 m max. --- Note: See Logical Connection Combinations below for details. *1. The number of G9SX-EX401- Expansion Units or G9SX-EX041-T- Expansion Units (-delayed Model) not included. *2. G9SX-EX401- Expansion Units and G9SX-EX041-T- Expansion Units (-delayed Model) can be mixed. Wiring Internal Connection G9SX-GS6-T15 (Safety Guard Switching Unit) A1 T11 T T21 T Y1 M1 M2 T61 T62 T71 T72 Y2 Y3 Y4 T31 T32 T33 T41 T42 Power supply circuit *1 Ch. 1 Ch. 2 Cross fault detection input A Mode selector input Ch. 1 Ch. 2 Cross fault detection input B External indicator diagnosis switching input Reset/ feedback input *2 Logical input control Auxiliary output control External indicator Expansion Unit output control output control *1. Internal power supply circuit is not isolated. *2. Logical input is isolated. *3. Outputs S14 to S54 and L1 are internally redundant. A2 S14 S24 S44 S54 L1 X1 X2 X3 X4 UA UB *3 G9SX-EX401- / G9SX-EX401-T- (Expansion Unit/Expansion Unit with Delay) *1 A1 Exp. sig. IN Power supply Safety output control circuit Auxiliary output control K1 K2 *2 Exp. sig. OUT A2 X2 *1. Internal power supply circuit is not isolated. *2. Relay outputs are isolated

3 System Configuration Examples Auto Switching Function 2. Curtain A 3. Curtain B 3. Curtain B 2. Safety Light Curtain A 1. AE Curtain F3S Curtain F3S 1. Basic Unit G9SX-BC Logical connection Safety Output Robot Contactor Safety Guard Switching Unit G9SX-GS External External indicator A indicator B Auxiliary Output The auxiliary output can be used to notify operators of the input, output, or error status. Programmable Controllers CS/C Series External Indicator Output The external indicator output can be used to notify operators of Safety Light Curtains that may safely be interrupted. Note: External indicator output may be used as necessary. Working condition External indicator G9SX-GS Safety input Monitor output External indicator Welding robot Conveying robot Normal operation 1 2 Curtain A Curtain B Welding robot Curtain A Curtain B Conveying robot OK to work OK to work Welding robot Conveying robot 3 Curtain A Curtain B Not OK to work Hazardous condition 4 Welding robot Conveying robot Curtain A Curtain B Not OK to work -17

4 System Configuration Examples (continued) Manual Switching Function 2. Cover 3. Conveyor cart 4. Mode selector 2. Safety Door Switch 3. Safety Limit Switch 1. AE Safety Door Switch D4NS Safety Limit Switch D4F Key-type Selector Switch AK 4. Mode selector 1. Basic Unit G9SX-BC Logical connection Contactor Conveyor cart Safety Guard Switching Unit G9SX-GS External External indicator A indicator B Auxiliary Output The auxiliary output can be used to notify operators of the input, output, or error status. Programmable Controllers CS/C Series External Indicator Output The external indicator output can be used to notify operators that the cover may be opened. Note: External indicator output may be used as necessary. Working condition External indicator Safety input G9SX-GS Mode selector Monitor output External indicator Normal operation 1 Limit Switch Door Switch Mode selector Not OK to open Normal operating mode Maintenance 2 3 Limit Switch Limit Switch Door Switch Door Switch Mode selector Mode selector OK to open OK to open Maintenance mode Maintenance mode Hazardous condition 4 Limit Switch Mode selector OK to open Door Switch Maintenance mode -18

5 T31 T32 T33 T11 T Y1 X1 X2 A FB T1 T2 EI ERR 0 -DELAY T21 T T41 T42 A2 S14 S24 S34 S44 S54 L1 G9SX-GS Safety Relays Functions Auto Switching Function The following table shows the relationship between the safety inputs and safety outputs of the G9SX-GS when auto switching is selected. 1. If the logical connection input is enabled, it must be as a necessary condition for the above table. 2. Select either auto reset or manual reset for the reset mode, depending on the operation of the application. Manual Switching Function As shown in the following table, the relationship between the safety inputs and safety outputs of the G9SX-GS depends on the setting of the connected mode selector when manual switching is selected. Mode Selector = Normal Operating Mode (M1 =, M2 = ) Mode Selector = Maintenance Mode (M1 =, M2 = ) 1. If the logical connection input is enabled, it must be as a necessary condition for the above table. 2. Select either auto reset or manual reset for the reset mode, depending on the operation of the application. Logical Connection The logical connection means that one Unit (Unit A) outputs a safety signal a to a subsequent Unit (Unit B) and Unit B calculates the logical between safety signal a and safety signal b. In the example shown below, the logical connection results in a safety output of a b for Unit B Unit A a a Note: For details on the logical connection, refer to the G9SX-series Flexible Safety Unit catalog (Cat. 150). b a () b Unit B External Indicator Outputs The operator can be notified of two safety input states (enabled/disabled) by connecting external indicator outputs UA and UB to indicators. External indicator outputs UA and UB turn when safety inputs A and B, respectively, are disabled, and turn when safety inputs A and B, respectively, are enabled. If error output X2 turns, UA and UB will both turn. Auto Switching Selected External indicator output Description of operation Output condition UA is disabled. is. UB is disabled. is. Manual Switching Selected External indicator output UA UB Description of operation is disabled. is disabled. Note: Fault of external indicators can be detected. Auxiliary Outputs Output condition Mode selector switch must be set to normal operating mode. Mode selector switch must be set to maintenance mode. Auxiliary outputs X1 to X4 can be used to notify the operator of input, output, and error states, as shown in the following table. Terminal name Signal name Output condition X1 X2 X3 X4 Auxiliary output Auxiliary error output Connecting Expansion Units X1 is when the instantaneous safety output is. X2 is when the error L is lit or flashing. X3 is when safety input A is. X4 is when safety input B is. The G9SX-EX and G9SX-EX-T Expansion Units can be connected to the G9SX-GS6-T15- to increase the number of safety outputs. A maximum of five Expansion Units can be connected to one G9SX- GS6-T15-. This may be a combination of the G9SX-EX Instantaneous Expansion Unit and the G9SX-EX-T -delayed Expansion Unit. Remove the terminating connector from the receptacle on the G9SX- GS6-T15- and insert the Expansion Unit cable connector into the receptacle. Insert the terminating connector into the receptacle on the Expansion Unit at the very end (rightmost). When Expansion Units are connected to the G9SX-GS6-T15-, make sure that power is supplied to every Expansion Unit. (Refer to the following diagram for actual Expansion Unit connections.) G9SX-AD3-T15 G9SX-EX G9SX-EX G9SX-EX G9SX-EX G9SX-EX Terminating connector G9SX-GS6-T15-@ Expansion Units -19

6 Dimensions and Terminal Arrangements (mm) Safety Guard Switching Unit G9SX-GS6-T15- (6) (See note 2.) Terminal arrangement T31 T32 T33 Y1 M1 M2 UA UB T11 T T61 T62 Y2 Y3 Y4 A1 T31 T32 T33 Y1 M1 M2 UA UB T11 T T61 T62 Y2 Y3 Y4 A1 G9SX-GS6-T15 FB T1 UA T2 T6 UB T7 EI ERR DELAY T21 T T71 T72 T41 T42 L1 A2 X1 X2 X3 X4 S14 S24 S44 S max. T1 T6 EI FB UA UB ERR T2 T7 T21 T T71 T72 T41 T42 L1 A2 X1 X2 X3 X4 S14 S24 S44 S max. (45)* (10) 115 max. (6) (See note 2.) * Typical dimension 1. Above outline drawing is for -RC terminal type. 2. For -RC terminal type only. Expansion Unit G9SX-EX401- Expansion Unit (-delayed Model) G9SX-EX041-T- (6) (See note 2.) G9SX-EX401-@ (Expansion Unit) Terminal arrangement G9SX-EX041-T-@ (Expansion Unit with Delay) G9SX-EX max. EI ERR ERR 23 max. (.5)* 115 max. (6) (See note 2.) * Typical dimension 1. Above outline drawing is for -RC terminal type. 2. For -RC terminal type only

7 Application Examples G9SX-BC202 (24 VDC) (Guard Lock Safety Door Switch (Mechanical Lock), (2-channel Input/Manual Reset) + G9SX-GS6-T15 (24 VDC) (Two 2-channel Safety Sensor Inputs/Auto Reset/Auto Switching) stop switch S S2 Feedback loop G9SX-BC202 (Unit 1) A1 T11 T T21 T T31 T32 T33 Y1 M1 1. This example corresponds to category 4. For details, refer to Safety Categories (EN 954-1). 2. Diagnostic checks of the external indicators connected to external indicator outputs UA and UB can be switched with Y3 and Y4, respectively. 3. Use safety sensors with PNP outputs. Application Examples Safety Sensor 2 Safety Sensor 1 A2 S14 S24 L1 L2 X1 X2 Safety Sensor A Safety Sensor B Emitter Receiver Emitter Receiver Feedback Loop Control output 1 Control output 2 (See (See note 2.) note 2.) G9SX-GS6-T15 (Unit 2) A1 T11 T T21 T Y1 Y3 M1 M2 T61 T62 T71 T72 Y2 Y4 T31 T32 T33 Control output 1 Control output 2 T41 T42 Manual Auto M2 A2 S14 S24 S44 S54 L1 X1 X2 X3 X4 UA UB Indicator Indicator (Diagnostic (Diagnostic check disabled) check enabled) S1: stop switch S2: Reset switch to : Contactors M1 and M2: 3-phase motors -21

8 Application Examples (continued) G9SX-BC202 (24 VDC) (2-channel Input/Manual Reset), + G9SX-GS6-T15 (24 VDC) (Safety Limit Switch, 2-channel Safety Door Switch Inputs/Manual Reset/Manual Switching) stop switch S Feedback loop 1. This example corresponds to category 4. For details, refer to Safety Categories (EN 954-1). 2. Diagnostic checks for the external indicators connected to external indicator outputs UA and UB can be switched with Y3 and Y4, respectively. Application Examples Safety Limit Switch A1 S2 T11 T T21 T T31 T32 T33 Y1 G9SX-BC202 (Unit 1) M1 Safety Door Switch Mode selector A2 S14 S24 L1 L2 X1 X2 23 Conveyor cart S S4 Cover Mode selector S6 (See note 2.) A1 T11 T T21 T Y1 Y3 S Feedback loop M1 M2 T61 T62 T71 T72 Y2 Y4 T31 T32 T33 T41 T42 S7 (See note 2.) G9SX-GS6-T15 (Unit 2) Manual Auto M2 A2 S14 S24 S44 S54 L1 X1 X2 X3 X4 UA UB S1: S2, S7: Reset Switches S3, S4: Safety Limit Switches S5: Safety Door Switch S6: Selector Switch to : Contactors M1 and M2: 3-phase motors Indicator Indicator (Diagnostic (Diagnostic check enabled) check disabled) -

9 Application Examples (continued) G9SX-BC202 (24 VDC) (2-channel Input/Manual Reset), + G9SX-GS6-T15 (24 VDC) (Safety Limit Switch, 2-channel Safety Door Switch Inputs/Manual Reset/Manual Switching) + G9SX-AD3-T15 (24 VDC) (2-channel Safety Door Switch Input/Manual Reset) stop switch S1 A Feedback loop S2 T11 T T21 T T31 T32 T33 Y1 1. This example corresponds to category 4. For details, refer to Safety Categories (EN 954-1). 2. Diagnostic checks for the external indicators connected to external indicator outputs UA and UB can be switched with Y3 and Y4, respectively. Application Examples Safety Limit Switch Mode selector G9SX-BC202 (Unit 1) M1 Cover 1 A2 S14 S24 L1 L2 X1 X2 Cover 2 23 Conveyor cart S S4 Cover 1 Mode selector S6 (See note 2.) A1 T11 T T21 T Y1 Y3 S Feedback Loop M1 M2 T61 T62 T71 T72 Y2 Y4 T31 T32 T33 T41 T42 S7 (See note 2.) G9SX-GS6-T15 (Unit 2) Manual Auto M2 A2 S14 S24 S44 S54 L1 X1 X2 X3 X4 UA UB Cover 2 S S9 Feedback loop KM5 KM6 Indicator Indicator (Diagnostic (Diagnostic check enabled) check disabled) A1 T11 T T21 T T31 T32 T33 Y1 T41 T42 G9SX-AD3-T15 (Unit 3) KM5 A2 S14 S24 S34 S44 S54 L1 X1 X2 KM5 KM6 KM6 M3 S1: S2, S7, S9: Reset Switches S3, S4: Safety Limit Switches S5, S8: Safety Door Switches S6: Selector Switch to KM6: Contactors M1 to M3: 3-phase motors -23

10 Ordering Model Number Legend G9SX Functions GS: Safety Guard Switching Unit EX: Expansion Unit 2 Output Configuration (Instantaneous Safety Outputs) 0: None 2: 2 outputs 4: 4 outputs 3 Output Configuration (-delayed Safety Outputs) 0: None 2: 2 outputs 4: 4 outputs 4 Output Configuration (Auxiliary Outputs) 1: 1 output 6: 6 outputs 5 Max. -delay Time Safety Guard Switching Unit T15: 15 s Expansion Unit No indicator: No delay T: dleay 6 Terminal Block Type RT: Screw terminals RC: Spring-cage terminals Note: See List of Models below for the actual models that can be ordered. List of Models Safety Guard Switching Unit Logical s *3 connection Instantaneous -delayed *2 Auxiliary outputs *4 Inputs Outputs 2 (Semiconductor) 2 (Semiconductor) 6 (Semiconductor) 1 (Semiconductor) 1 (Semiconductor) Max. -delay time *1 15 s 24 VDC *1. The -delay time can be set in 16 steps as follows: T15: 0/0.2/0.3/0.4/0.5/0.6/0.7/1/1.5/2/3/4/5/7/10/15 s *2. The -delayed output becomes an instantaneous output by setting the -delay time to 0 s. *3. P channel MOS FET transistor output *4. PNP transistor output (except for the external indicator outputs, which are P channel MOS FET transistor outputs) Rated voltage Terminal block type Model Screw terminals G9SX-GS6-T15-RT Spring-cage terminals G9SX-GS6-T15-RC Expansion Unit s Instantaneous -delayed Auxiliary outputs *1 -delay time 4 PST-NO (Semiconductor) PST-NO *2 *1. PNP transistor output *2. The -delay time is synchronized to the -delay time setting in the connected Unit (G9SX-GS6-T15- ). Rated voltage Terminal block type Model Screw terminals G9SX-EX401-RT 24 VDC Spring-cage terminals G9SX-EX401-RC Screw terminals G9SX-EX041-T-RT Spring-cage terminals G9SX-EX041-T-RC -24