Safety automation solutions

Transcription

1 Operating principle Preventa safety modules types XPS BA,, XPS BF Operating principle Two-hand control stations are designed to provide protection against hand injury. They require machine operators to keep their hands clear of the dangerous movement zone. The use of two-hand control is an individual protective measure, which can safely protect only one operator. Separate two-hand control stations must be provided for each operator in a multiple-worker environment. Safety modules XPS BA, BCE and BF for two-hand control stations comply with the requirements of European standard EN 574/ISO 385 for two-hand control systems. The control stations must be designed and installed such that they cannot be activated involuntarily or easily rendered inoperative. Depending on the application, the requirements of type C standards specifi c to the machinery involved must be met (additional personal protection methods may have to be considered). To initiate a dangerous movement, both operators (two-hand control pushbuttons) must be activated within an interval y 0.5 s (synchronous activation). If one of the two pushbuttons is released during a dangerous operation, the control sequence is cancelled. Resumption of the dangerous operation is possible only if both pushbuttons are returned to their initial position and reactivated within the required time interval. The safety distance between the control units and the hazardous zone must be sufficient to ensure that when only one operator is released, the hazardous zone cannot be reached before the dangerous movement has been completed or stopped. Characteristics: page EN/3 Selection, references: page EN/4 Connections: page EN/6 Dimensions: page EN/

2 Characteristics Preventa safety modules types XPS BA, Characteristics Module type XPS BA ppppp ppppc Maximum achievable safety level PL c/category conforming to EN/ISO Reliability data Mean Time To dangerous Failure (MTTF d) Years Diagnostic Coverage (DC) % > 99 Probability of dangerous Failure per Hour (PFH d) /h 7. x x 0-8 Conformity to standards EN/IEC 6004-, EN/IEC , EN/IEC , EN 574 type III A/ISO 385 PL e/category 4 conforming to EN/ISO 3849-, SILCL 3 conforming to EN/IEC 606 EN/IEC 6004-, EN/IEC , EN/IEC , EN 574 type III C/ISO 385 Product certifications UL, CSA, TÜV UL, CSA, BG Supply Voltage V 4 z, 5 a, 30 a 4 c, 4 a, 5 a, 30 a Voltage limits % (4 V c), % (4 V a) Frequency Hz 50/60 Consumption VA < 0 (apparent power) < 4 Module inputs fuse protection Internal, electronic Inputs S: NC + NO, S: NC + NO Two-hand control type III A III C Conforming to EN 574 Synchronisation time s 0.5 maximum Control unit voltage 4 V c version V V a, 5 V, 30 V version V % (4 V c, 4 V a), % (5 V a), % (30 V a) Minimum voltage and current Between terminals T-T, T-T3 U min./i min. - 4 V c version (0 C) 8 V/30 ma U min./i min. - 4 V a/5 V/30 V version 8 V/30 ma (0 C) Calculation of wiring resistance RL (for only) Ω c between terminals S-S3, S-S3 RL = Ue Un x 60-7 a RL = Ue Un x Ue = true voltage applied to terminals A-A Un = nominal supply voltage Outputs Voltage reference Volt-free Number and type of safety circuits NO (-4) NO (3-4, 3-4) Number and type of additional circuits NC (-) NC (3-3) Breaking capacity in AC-5 VA C300: inrush 800, maintained 80 B300: inrush 3600, maintained 360 Breaking capacity in DC-3 4 V/.5 A - L/R = 50 ms Max. thermal current (Ithe) A 5 6 Output fuse protection, using fuses A 4 gg or 6 fast acting 6 gg conforming to IEC/EN , VDE 0660 part 00 Minimum current ma 0 Minimum voltage V 7 Electrical durability See page 3860-EN/ Response time ms < 5 < 50 Rated insulation voltage (Ui) V 300 (degree of pollution conforming to IEC/EN , DIN VDE 00 parts & ) Rated impulse withstand voltage (Uimp) kv 4 (overvoltage category III, conforming to IEC/EN , DIN VDE 00 parts & ) LED display 3 Operating temperature C Storage temperature C Degree of protection conforming to IEC/EN 6059 Terminals IP 0 Enclosure IP 40 Connections Type Terminals Captive screw clamp terminals Captive screw clamp Spring terminals terminals Terminal block Integrated in module Removable from module -wire connection Without cable end Solid or fl exible cable: Solid or fl exible cable: 0..5 mm mm With cable end Without bezel, flexible cable: mm With cable end With bezel, fl exible cable: mm With bezel, fl exible cable: mm -wire connection Without cable end Solid or fl exible cable: mm Solid or fl exible cable: 0. mm With cable end Without bezel, fl exible cable: 0.5 mm With cable end Double, with bezel, flexible cable: mm Double, with bezel, flexible cable: 0.5 mm 3

3 Characteristics (continued) Preventa safety modules type XPS BF Characteristics Module type XPS BF3 XPS BF3P Maximum achievable safety level PL e/category 4 conforming to EN/ISO 3849-, SILCL 3 conforming to EN/IEC 606 Reliability data Mean Time To dangerous Failure (MTTF d) Years 50. Diagnostic Coverage (DC) % > 99 Probability of dangerous Failure per Hour (PFH d) /h.3 x 0-8 Conformity to standards EN 6004-, EN , EN , EN 574 type III C/ISO 385 Product certifications UL, CSA, TÜV Supply Voltage V 4 c Voltage limits % Consumption W <.5 Module inputs fuse protection Internal, electronic Inputs S: NC + NO, S: NC + NO Two-hand control type III C conforming to EN 574 Synchronisation time s 0.5 maximum Control unit voltage V 4 V/8 ma Outputs Voltage reference Volt-free Number and type of safety circuits NO (3-4, 3-4) Number and type of additional circuits solid-state (type 4 V - 0 ma) Breaking capacity in AC-5 VA C300: inrush 800, maintained 80 Breaking capacity in DC-3 4 V/.5 A - L/R = 50 ms Max. thermal current (Ithe) A 4. Max. total thermal current A 8.4 Output fuse protection, using fuses conforming to IEC/EN , VDE 0660 part 00 A 4 gg or 6 fast acting Minimum current ma 0 Minimum voltage V 7 Electrical durability See page 3860-EN/ Response time ms < 0 Rated insulation voltage (Ui) V 300 (degree of pollution conforming to IEC/EN , DIN VDE 00 parts & ) Rated impulse withstand voltage (Uimp) kv 4 (overvoltage category III, conforming to IEC/EN , DIN VDE 00 parts & ) LED display 3 Operating temperature C Storage temperature C Degree of protection Terminals IP 0 conforming to IEC/EN 6059 Enclosure IP 40 Connection Type Terminals Captive screw clamp terminals Captive screw clamp terminals Terminal block Integrated in module Removable from module -wire connection Without cable end Solid or fl exible cable: mm Solid or fl exible cable: 0..5 mm With cable end Without bezel, fl exible cable: mm With cable end With bezel, fl exible cable: mm With bezel, fl exible cable: 5.5 mm -wire connection Without cable end Solid or fl exible cable: mm Solid cable: 0. mm, fl exible cable: 0..5 mm With cable end Without bezel, fl exible cable: 0.5 mm With cable end Double, with bezel, fl exible cable: mm 4

4 Selection, references Preventa safety modules types XPS BA,, XPS BF Selection Requirements of standard EN 574/ ISO 385 Standard EN 574/ISO 385 defi nes the selection of twohand controls according to the control system category. Use of both hands (simultaneous action) The following table details the 3 types of two-hand control Link between input and output signals conforming to EN 574/ISO 385. Output signal inhibited For each type, it lists the operating characteristics and minimum requirements. Prevention of accidental operation Type I Type II Type III A B C Tamper-proof Output signal reinitialised Synchronous action (specified time limit) Use of proven components (Category conforming to EN/ISO 3849-) Redundancy with partial error detection (Category 3 conforming to EN/ISO 3849-) Redundancy + Self-monitoring (Category 4 conforming to EN/ISO 3849-) Two-hand control station XY SBpp XPS BApp XPS BF XPS BF Meets the requirements of standard EN 574/ISO 385 References XPS BA50 Description Safety modules for electrical monitoring of two-hand control stations Type conforming to standard EN 574 III A III C Connection Captive screw clamp terminals Terminal block integrated in module Captive screw clamp terminals Terminal block removable from module Conforming to standard EN/ISO Number of Additional safety circuits outputs Supply Reference Weight kg NO NC a or 4 V c XPS BA NO NC relay a and 4 V c 30P V a 340P V a 370P 0.3 Spring terminals Terminal block removable from module NO NC relay a and 4 V c 30C V a 340C V a 370C 0.3 ppppp ppppc Captive screw clamp terminals Terminal block removable from module NO solid-state 4 V c XPS BF NO solid-state 4 V c XPS BF3P 0.50 XPS BF3 5

5 Connections Preventa safety modules type XPS BA XPS BA Module XPS BA associated with a two-hand control station Type III A conforming to EN 574 L (+) F S S A T T T T3 + Logic K T XPS BA A 4 N ( ) Signalling output Safety output S and S: pushbuttons. Must not be used for applications (presses) which require a type III C module ( or XPS BF). Functional diagram of module XPS BA Supply voltage Two-hand control not activated Button Button Two-hand control activated Two-hand control not activated Supply A-A Input T-T (NC) Input T-T3 (NO) Safety output -4 (NO) Signalling output - (NC) Key 0 max. 500 ms max. 5 ms Response time LED details (XPS BA) Supply voltage A-A. K status (NO safety output -4 closed). 6

6 Connections Preventa safety modules type Module associated with a two-hand control station Type III C conforming to EN 574/ISO 385 a and 4 V c Logic S, S: Two-hand control station pushbuttons ESC: External start conditions () Maximum fuse rating: see technical characteristics. 5 a and 30 V PE L (+) F S S K3 K4 ESC () () A t S3 S S S3 Y Y K 4 V K K T Logic K K K A S S N (-) K3 K4 S, S: Two-hand control station pushbuttons ESC: External start conditions () Maximum fuse rating: see technical characteristics. 7

7 Connections (continued) Preventa safety modules type Functional diagram of module Two-hand control not activated Two-hand control activated Two-hand control deactivated Button Button Mushroom head S (NC) Mushroom head S (NO) Mushroom head S (NC) Mushroom head S (NO) Feedback loop Y-Y Output 3-4 (NO) Output 3-4 (NO) Output 3-3 (NC) Key ts 0 ts, Synchronisation time: 500 ms max. tr, Response time: 50 ms. tr LED details () 3 Supply voltage A-A. K status (NO safety outputs closed). 3 K status (NO safety outputs closed). 8

8 Connections (continued) Preventa safety modules type XPS BF XPS BF Module XPS BF associated with a two-hand control station F S XY SB ESC K3 K4 A S S S3 Y Y 3 3 Logic Fault K/K K K XPS BF K K A S S S3 Y34 Y S XY SB To PLC K3 K4 ESC: External start conditions. Y-Y: feedback loop Functional diagram of module XPS BF Two-hand control not activated Two-hand control activated Button Button Two-hand control deactivated Mushroom head S (NC) Mushroom head S (NO) Mushroom head S (NC) Mushroom head S (NO) Feedback loop Output 3-4 (NO) Output 3-4 (NO) Solid-state output Y34 (fault) Solid-state output Y44 (K/K) T = 0.5 s max. T = 0.0 s max. Activated Deactivated Key LED details (XPS BF) 3 Supply voltage A-A (fuse status). Fault signalling. 3 K-K status (NO safety outputs closed). 9