Voltage temp (vt)-probes, Checking for defective vt-probes – GE Industrial Solutions H5692448 Power Systems Infinity M1 (NE-M) User Manual

Page 71

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NE-M

with Pulsar or Millennium II Installation Guide

H5692448

CC848815325 r06 May 2013

71

Table 11 Rectifier/Converter LEDs

LEDs

Condition

Output Limit: The unit is okay and delivering maximum output:

• At max rated output
• At configured current limit
• At thermal limit

1. If rectifiers/converters are equipped with optional air filters and reporting thermal

limiting, check air filters. Clean or replace all filters if necessary.

2. View rectifier currents

:

Status > Rectifiers > Rectifier Currents.

ac Fail: Rectifier input is missing or out of range.

Correct AC fault.

Input Fail: Converter input is out of range.

Correct converter input fault.


Shutdown

32

: The unit cannot deliver output.

• High Voltage Shutdown
• Thermal Shutdown
• Under Voltage Protect
• Component failure

1. Check rectifier or converter status on controller display to determine cause of shutdown
2. Correct system output short, high temp, etc.
3. Remove and reinsert unit. If fault remains and other units are functioning correctly,

replace unit.

Communication Fail: Blinks to indicate the rectifier is not communicating with a system

controller.
Remove and reinsert unit. If fault remains and other units are communicating correctly,

replace unit.

Voltage Temp (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 – Install new probe.
Finished.

No – Reinstall the removed probe. go to Step 4.

4

Remove the next probe.

5

Go to Step 2. Repeat steps for all probes.

32

When a rectifier or converter senses an over- or under-voltage condition, it will shutdown, wait 4 seconds, and then

attempt to restart. If the over- or under-voltage condition remains it will cycle again. If the over- or under-voltage

condition remains after 3 restart attempts the unit will lock out, and user intervention is required to restart.

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