3-58
•
••
•
Chapter 3 Paramters/Functions Innovation Series Medium Voltage GP Type - G Drives GEH-6385
Fault/Alarm Description
HtSink DS temp hot Diode source heatsink temperature (variable DS heat
sink temp) is high.
HtSink DS ov er temp Di ode source heatsi nk temperatur e (variable DS heat
sink temp) is too high.
HtSink DS ri se high Diode sour ce heatsink tem perature (vari able DS heat
sink temp) is too far above ambient temperature
(variabl e Bridge ambient temp).
HtSink DS temp low Diode source heatsink temperature (variable DS heat
sink temp) is too low.
HtSink temp imbalanc Trip fault occurs when any two of the measured heatsink
temperatures differ by an amount exceeding heatsink
imbalance fault level.
HtSink blo wer failed Tr ip fault occurs i f the drive is run ning and the cooli ng
fans are not operating.
BICM card temp low Contr ol rack temperatu re, measured by a s ensor on
BICM, is too low.
BICM card hot Co ntrol rack tem perature, measu red by a sensor on
BICM, is high.
BICM card over temp Contr ol rack temperatu re, measured by a sensor on
BICM, is too high.
Line-Line Voltage Protection

The drive con tains several di agnostic and prot ective featur es involving the Line-Line

Voltage Protection.

Diagnostic variables

The following table sp ecifies the Line-Line Voltage Protection diagnostic variables.

Variable Description
Output volts, A-B Filtered A-B line-line voltage. Line-line volts
Output volts, B-C Filtered B-C line-line voltage. Line-line volts
A-B, Volta ge offset Calc ulated A-B volt age offset. Line- line volts
B-C, Volta ge offset Calcul ated B-C voltag e offset. Line-li ne volts
Faults and alarms

The following table sp ecifies the faults and alarms associ ated with the Line-Line

Voltage Protection.

Fault/Alarm Description
A-B voltage offset Trip fault that occurs when the A-B line-line voltage offset
is too high.
B-C voltage offset Trip fault that occurs when the B-C line-line voltage offset
is too high.