- General Electric Computer Accessories User Manual

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• Chapter 2 Faults and Troubleshooting Innovation Series Medium Voltage GP Type - G Drives GEH-6385
No. Name Type Description
16 Illegal req for xfer Alarm
The Illegal req for xfer alarm occurs when a motor transfer command is issued
and a trip fault is present in the drive. The alarm may also occur when a motor
transfer command is issued at the same time a diagnostic test (cell test, pulse
test, autotune) is active.
Primary causes:
The external application layer issues an inappropriate motor transfer request.
17 Transfer req
aborted
Trip The Transfer req aborted trip fault occurs when the motor control is unable to
synchronize to the utility line in the allotted time in response to a motor transfer
request.
18 Tune up failed Trip
The Tune up failed trip fault occurs when an attempt to run the motor control
tune up or the speed regulator tune up fails.
Primary causes:
The external application layer issues an inappropriate motor control tune up
request or speed regulator tune up request.
An attempt by the motor control tune up or the speed regulator tune up to
initialize the diagnostic message stack fails.
19 Ext ref out of range Alarm
The Ext ref out of range alarm occurs when the external line reference voltage
is outside of the allowable range.
20 TOC pending Alarm The TOC pending alarm occurs when one of the squared phase currents
(variables Ia^2 filtered, Ib^2 filtered, and Ic^2 filtered) in the timed over current
detection model exceeds the timed over current alarm level.
This alarm indicates that the motor is nearing its thermal limit.
21 System flt Trip
The System flt trip fault occurs when the system permissive circuit is open and
a Run request, Jog request, Full flux request, or diagnostic test (cell test, pulse
test, autotune) request is issued.
Possible wiring faults:
The connections to ATBA terminal board locations 2 (S115), 4 (S24), and 6
(SCOM) are missing or damaged..
22
Run before MA
closed
Trip
The Run before MA closed trip fault occurs when a Run request, Jog request,
or Full flux request is issued to the motor control sequencer before contactor A
is closed.
Related functions:
Sequencer Permissives
Main Contactor Configuration
23 Flying restrt disabl Trip The Flying restrt disabl trip fault occurs when a Run request, Jog request, Full
flux request, or diagnostic test (cell test, pulse test, autotune) request is issued
when the motor is not at zero speed.
Flying restrt disabl can be turned off and the drive allowed to start when the
motor is not at zero speed by placing the drive in flying restart mode. Flying
restart mode is enabled by setting parameter Flying restart equal to Enable fly
restart.
Related functions:
Sequencer Permissives