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Chapter 2 Faults and Troubleshooting Innovation Series Medium Voltage GP Type - G Drives G EH-6385
No. Name Type Descript ion
68 HtSink C over temp Trip The HtSink C over temp trip fault occurs when heatsink C temperature
(variabl e Heat sink C temp) is too high.
Related functions:
Heatsink Thermal Protection
69 BICM card hot Alarm The BICM card hot alarm occurs when the sensor on BICM measures a
temperature that is hot. The sensed tem perature is above 55C and the control
electronics are operating outside of their design parameters. If the
temperatur e continues to ri se and exceeds 60C , the drive will trip. This
warning is generated in order to allow time for corrective action to be taken.
BIC ambient temp is the variable being monitored to generate this alarm.
Primary ca uses:
Blocked air flow to control rack.
Control rack cooling fan failure.
Ambient tem perature i s too high.
Possible board failures:
BICM
70 HtSink DB temp hot Alarm The HtSink DB temp hot alarm occurs when the dynamic brake heatsink
temperatur e (variable DB heat sink temp) is high.
Related functions:
Heatsink Thermal Protection
71 HtSink DS temp hot Alarm The HtSink DS temp hot alarm occurs when the diode source h eatsink
temperatur e (variable DS heat sink temp) is high.
Related functions:
Heatsink Thermal Protection
72 HtSink A temp hot Al arm The HtSink A temp hot alarm occurs when heatsink A t emperature (var iable
Heat sink A temp) is high.
Related functions:
Heatsink Thermal Protection
73 HtSink B temp hot Al arm The HtSink B temp hot alarm occurs wh en heatsink B tem perature (varia ble
Heat sink B temp) is high.
Related functions:
Heatsink Thermal Protection
74 HtSink C temp hot Alarm The HtSink C t emp hot alarm occurs when heatsink C temper ature (variabl e
Heat sink C temp) is high.
Related functions:
Heatsink Thermal Protection
75 Switchgear not
ready
Alarm The Switchgear not ready alarm occurs when the permissive st ring to close
the main switchgear is not present. This permissive string ends at BTBH(8)
and includes customer contacts used to open the main. The primary purpose
of the alarm is to prevent charging of the DC bus until the switchgear is ready
to close.
Primary ca uses:
Switchgear not racked in.
Customer switchgear permissive not met.
76 HtSink DB rise high Alarm The HtSink DB rise high alarm occur s when the dynami c brake heatsink
temperatur e (variable DB heat sink temp) is too far above the ambient
temperatur e (variable Bridge ambient temp).
Related functions:
Heatsink Thermal Protection