Tapeswitch PRSU/4 Operating Instructions Manual Download Page 8

Page: 8 / 10

Copyright (2021)

All

rights reserved. Changes, which serve technical improvements are reserved.

PRSU/4, PRSU/5 Operating Instructions Manual (Revision 3.0)

Maintenance Info and Replacement Procedure

The safety relay controller works without maintenance.
For replacement of the device, follow the procedure below:

1. Turn OFF and disconnect the source of applied power to the device.

Ensure that no terminal of the device is connected to a live voltage before continuing.

2. Unscrew terminals A1 and A2 from the device before removing any other connections.

3. One at a time, free connect

ions from the device’s terminal blocks by

unscrewing. Ensure that freed conductors are not left in the vicinity of live voltage con-
ductors.

4. Insulate wire ends if necessary.

5. When all connections are freed, remove the defective device from the DIN rail.

6. Mount new device to the DIN rail (see Page 5, Figure 3).

Perform “Device Startup Verification” procedure described earlier on Page 4 of this
manual.

Summary of Contents for PRSU/4

Page 1: ...plants who are familiar with the safety instructions and safety regulations Skilled personnel who build install maintain and operate safety equipment in plants and machinery Symbol Key These operating...

Page 2: ...egulations for safety at work and accident prevention and who have read this manual s content in full Installation assembly and maintenance of electrical equipment is only permitted by specialized sta...

Page 3: ...ons Manual Revision 3 0 PRSU 4 PRSU 5 Output Contacts A1 A2 13 14 23 24 33 34 41 42 S33 S34 S11 S12 S21 S22 Power supply inputs Safety relays normally open Auxiliary relay normally closed RESET mode c...

Page 4: ...onitoring of the switches sensors will only occur once a RESET signal is received by bridging S33 and S34 with an appropriately rated wire See Pages 5 through 7 of this manual for more information Aft...

Page 5: ...otch on the rear of the unit for DIN Rail attachment Electrical Connections Wire the device based on which of the following options best suits the target application RESET Mode Control Wiring 1 Automa...

Page 6: ...he closure is broken and a RESET signal is manually generated by the operator via a mechanical N O pushbutton or switch 3 Conditional In this operating mode the RESET signal cannot propagate unless al...

Page 7: ...to de energize Warning For this configuration to work as intended the series resistance between each end of the sensor s conductors cannot exceed 10 Additionally the short circuit resistance between...

Page 8: ...no terminal of the device is connected to a live voltage before continuing 2 Unscrew terminals A1 and A2 from the device before removing any other connections 3 One at a time free connections from the...

Page 9: ...es In cases where either one or both Channel LEDs is OFF during normal operation please verify that the device is properly wired If the problem persists the device is no longer capable of service Reti...

Page 10: ...ifetime 105 switching cycles DC 24V 2A 105 switching cycles DC 24V 2A Creeping Distance and Clearance EN 50178 at pollution grade 2 over voltage category 3 250V Basis isolation over voltage category 3...