Siemens SINAMICS PERFECT HARMONY GH180 Function Manual page 497

Fault display
F.O. Bd Power Supply
Regulated Power Supply
Internal Reg Pwr Supply
(for version 6.3 and later s/w)
M1 Permit Pwr Supply
This section describes the routines used to detect abnormal conditions due to an internal drive
failure and provide protection to the drive. The faults generated by the routines may be used
with suitable interlocking, via a relay output and/or serial communication, to disconnect
medium voltage from the drive input.
Setting the input protection fault produces the fault message "Input Protection Fault". An
external key-switch is required for resetting the fault and the LFR.
NXGPro+ Control Manual
Operating Manual, A5E50491925A
11.14 Drive Faults and Alarms Low Voltage Power Supply Related
Type Enable Potential causes and corrective actions
F Fixed Cause
Fiber optic main board +5 VDC power has failed or +24VDC is in alarm. This
item is only an alarm (NOT a fault).
Action
1. Check the physical condition and connection of the power supply wir‐
ing harness.
2. Check the Fault Log and/or Debug Tool -- Faults/Alarms -- drive screens
for an active condition.
3. If the above steps do not resolve the issue, contact Siemens customer
service.
F Fixed Cause
One or more of the following on board power supplies has failed on the
main control board:
• +/-12 VA
• +5 VDC
• +5 VA
Action
1. Check the condition and connection of the power supply wiring har‐
ness.
2. Check the Fault Log and/or Debug Tool -- Faults/Alarms -- drive screens
for an active condition.
3. If the above steps do not resolve the issue, contact Siemens customer
service.
F Fixed Cause
The "M1 Permit Pwr Supply" fault indicates an M1 permissive power supply
on the system interface board has failed. This fault will only be generated
if M1 permissive is commanded to be closed.
Action
1. Verify that the system interface board "M1 PWR" LED is illuminated
green.
2. Check connection of DB50 cable at the DCR (J3) and the system inter‐
face board (P1).
3. Check the condition of the DB50 cable between the DCR and the sys‐
tem interface board. Ensure continuity of conductors for pins 39, 40,
45, 46 from one connector through to the other side.
4. Verify that there is no "POWER SUPPLY" or "RED MAIN PWR SUP FAIL"
fault.
5. If the above steps do not resolve the issue, contact Siemens customer
service.
Troubleshooting Faults and Alarms
495