GE Industrial Solutions Galaxy Vector Rack Mounted Controller J85501M-1 - Manual (Page 33)

Galaxy Rack-Mounted Vector Controller J85501M-1
Issue 2 January 2008 Operation 3 - 5
Voltage Sense Fuse Alarms
A lack of voltage or reversed voltage on the Vsense +/- pair to
the Vector Controller as a result of a broken connection or a
blown fuse while the Vector is still powered results in a Voltage
Sense Fuse alarm. A voltage of 16.xx / -34.xx volts is displayed.
Sanity Fail in the Vector microprocessor or loss of power to the
Vector result in operation of the PMJ alarm. This PMJ defaults
to the alarm state if the controller is removed from the BUJ1.
AC Fail and Multiple AC Fail Alarms
If the proper ac input voltage is not available to any system
rectifier which is connected to the serial rectifier bus, an AC Fail
alarm (ACF) activates as a PMN. More than one ACF results in
a Multiple AC Fail alarm, changing this alarm status to a PMJ.
Note: S1.2 set to “1” will allow the HV/2ACF/VLV alarm
contact to be assigned to the Multiple AC Fail condition.
However, this will also cause the custom default configuration
values to be used any time the GCM is rebooted at power up.
Rectifier Failure and Multiple Rectifier Failure Alarms
Various rectifier failure modes cause a rectifier failure signal to
be issued to the controller, such as high voltage, temperature
over threshold, fan failure, and rectifier circuit breaker/fuse
open. Additionally, when rectifiers are removed or fail to
communicate with the Vector, a RFA alarm is generated. This
RFA alarm is cleared by updating the serial line in the
Operations and Control menu (see Configuration, Section
4).The RFA signal results in a RFA and Power Minor alarm
being issued by the Vector. More than one RFA at any time
results in a Multiple Rectifier Failure alarm and Power Major.
The Vector does not attempt restarts for RFAs caused by TA
(Thermal Alarm), CB/fuse trip, or Fan Failure.
Rectifier ID Conflict Alarm
This alarm occurs when rectifier ID numbers are duplicated or
are zero. Refer to the rectifier manuals for setting and viewing
the rectifier ID numbers.
Rectifier Manual Off Alarm
Whenever the rectifier is manually turned to standby, this alarm
occurs. A switch on the front panel for each rectifier allows the
user to manually turn the rectifier on or standby. When the
switch is in standby position, the alarm is active.