GE Industrial Solutions H2007001 G21 Series - Manual (Page 74)

Infinity D Power System Installation Guide: -48V Plants H2007001
Issue 2.0, June 3, 2008 74
Troubleshooting VT -Probes
Checking for Defective VT-Probes
(If a Voltage Channel Failure and/or Thermal Probe Failure alarm occurs)
Step Action
1. Disconnect the first probe from its RJ-45 terminal block.
2. Run the command: MENU > CONTROL / OPERATIONS > UNINSTALL EQUIPMENT.
Is the system controller green Normal LED lit?
3.
Yes – Removed probe is defective. Replace it.
Finished. No – Reinstall the removed probe. Proceed to
Step 4.
4. Remove the next probe.
5. Go to Step 2. Repeat steps for all probes.