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GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 2 Faults and Troubleshooting
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2-25
No. Name Type Description
119
Start permissive
bad
Alarm
The Start permissive bad alarm occurs when the start permissive circuit is
open and the drive is stopped. The state of the start permissive circuit is
determined by the value of the variable which parameter Start permissive sel
selects. The alarm can be disabled by setting parameter Start permissive sel
equal to Unused.
Related functions:
Sequencer Permissives
121 DBS1 IGDM card flt Trip
The DBS1 IGDM card flt trip fault is hardware generated. The trip fault occurs
when the bridge control has lost communication with the indicated IGDM
module. This communication occurs via fiber optic cable between the FOSA
and the IGDM. During normal operation the IGDM transmits continuous light
back to FOSA. Any loss of this signal triggers this trip fault.
Several unrelated situations can cause the light to stop transmitting. Run the
Cell Test Wizard to identify any failed devices.
Primary causes:
CPFP power supply failure
IGDM failure
A desat fault on the indicated IGBT was detected.
Possible board failures:
IGDM
CPFP
FOSA
BICM
Possible wiring faults:
Fiber optic connection between FOSA and IGDM
Power distribution wiring from CPFP.
122 DBS2 IGDM card flt Trip
The DBS2 IGDM card flt trip fault is hardware generated. The trip fault occurs
when the bridge control has lost communication with the indicated IGDM
module. This communication occurs via fiber optic cable between the FOSA
and the IGDM. During normal operation the IGDM transmits continuous light
back to FOSA. Any loss of this signal triggers this trip fault.
Several unrelated situations can cause the light to stop transmitting. Run the
Cell Test Wizard to identify any failed devices.
Primary causes:
CPFP power supply failure
IGDM failure
A desat fault on the indicated IGBT was detected.
Possible board failures:
IGDM
CPFP
FOSA
BICM
Possible wiring faults:
Fiber optic connection between FOSA and IGDM
Power distribution wiring from CPFP.