Rockwell Automation Publication 440R-UM013F-EN-P - July 2021
73
Chapter 11 Troubleshooting
Measure the contact resistance to confirm that the relay is not functioning
properly. As shown in
, remove the power wires to terminal 41 and set
the digital multimeter to ohms. Be sure that the OUT status indicator is OFF.
The contact resistance must be less than 1 ohm. If it is not, then the internal
positive-guided relay is not functioning properly, and the GSR safety relay
must be replaced.
Figure 84 - Measure Contact Resistance of Aux Output Terminals
Check the Y32 Output
When OUT status indicator is OFF, terminal Y32 does not turn ON, or when
the safety outputs are OFF, the Y32 output must be ON. This is true for both
faulted and running states.
Use a digital multimeter to measure the voltage at Y32 (point 1 in
The voltage must be around 23V DC.
shows a typical schematic for
the aux output; the aux signal can go to a PLC input or to an indicator on a
control panel. If it is 23V, then check the remaining points (2…5). If Y32
measures 0V, then the relay must be replaced.
Figure 85 - Measure Y32 Voltage
SHOCK HAZARD:
Turn off power before power connection is removed if +V
supply is greater than 50V.
42
<1
41
OUT
Ohms
DMM
Com
SHOCK HAZARD:
Remove the
power connections to terminal
41 before measuring the
contact resistance.
+V supply
0V
PLC
Input
A2
Y32
A1
23
Volts
DMM
0V
1
2
3
4
5
Com
OUT
+24V DC
PWR/Fault
PLC
Input
CI, DI, DIS, or SI
Содержание 440R-D22R2
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Страница 81: ...Rockwell Automation Publication 440R UM013F EN P July 2021 81 Appendix A Specifications Notes...
Страница 82: ...82 Rockwell Automation Publication 440R UM013F EN P July 2021 Appendix A Specifications...
Страница 89: ...Rockwell Automation Publication 440R UM013F EN P July 2021 89 Guardmaster Safety Relays User Manual...