- General Electric Computer Accessories User Manual

GEH-6385 Reference and Troubleshooting, 2300 V Drives Chapter 2 Faults and Troubleshooting •
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• 2-5
No. Name Type Description
10
Run cmd w high
flux
Alarm
The Run cmd w high flux alarm occurs when a Run request, Jog request, Full
flux request, or diagnostic test (cell test, pulse test, autotune) request is issued
and the variable Flux reference is greater than 2 percent rated flux (100%
Flux).
Primary causes:
An attempt is made to restart the drive quickly. Normally four rotor time
constants are required to allow the flux to decay after the drive stops running.
Related functions:
Sequencer Permissives
11 EE erase failed Alarm
The EE erase failed trip fault occurs when the preparation of memory for the
next parameter save operation fails to happen satisfactorily. The next
parameter save operation is expected to be invalid, and the integrity of future
parameter save operations are in doubt.
EE erase failed requires a hard reset to clear.
Possible board failures:
DSPX
12 Gnd flt, coarse Trip
The Gnd flt, coarse trip fault occurs when a large ground current is detected.
The trip fault occurs when the magnitude of the sum of the three phase
currents is too large.
13 Vdc Fbk voltage
trim
Alarm The Vdc Fbk voltage trim alarm occurs when the automatic Vdc feedback trim
function on the BICM is not functioning correctly. You will not receive this
warning unless you are using drive firmware version V02.21.00B or higher
AND you have a BICMH1AB version card or higher. Older versions of
software and hardware suffer from Vdc feedback inaccuracy, which can lead
to problems in some circumstances. Getting the trim function to operate
properly is important to optimum performance of the drive. There are several
situations that can lead to this alarm.
First, make sure you have run the Cell Test Wizard (either fiber optic test or
bridge cell test) at least once when the DC link is fully discharged (<100V).
This wizard calibrates the DC bus feedback and saves a parameter in the
drive. This procedure does not need to be repeated unless hardware has
changed in the drive or the previously saved parameter was overwritten by a
parameter downloaded from the toolbox. If this procedure has not been
performed then this alarm is generated.
Second, make sure that JP1 on the BICMH1AB card has been moved to the
non-default position. This jumper enables the circuit that this alarm is
concerned with. The jumper JP1 being in the dashed-box indicates the non-
default position. The jumper being in the solid box indicates the default
position. The default position is used only when the card is placed in drives
that have software versions prior to V02.21.00B
If both if these steps fail to clear this alarm then your BICM card may be
defective.
Primary board failures
BICM
14 Cap buff init failed Alarm The capture buffer initialization has failed to allocate enough memory to run
the capture buffer. The capture buffer has been disabled and will not run.
However the drive should operate normally.
A new version of firmware is required to correct this problem.
15 MA cont not closed Trip
The MA cont not closed trip fault occurs when the MA feedback indicates that
the MA contactor is open when it is commanded to close.