Display Operation Manual BC2000 and JC2000 Controller ~ Doc. No. 2055882, Issue 5.1, June 2014 33
Table 4 – Basic Problems and Solutions
Problem Solution(s)
Minor Alarm
Summary for multiple alarms including single rectifier failure, distribution alarm,
etc.
Major Alarm
Summary for multiple alarms including Multiple rectifier failure , LVD Open, etc.
AC Fail
Check to see if commercial AC circuit breaker or fuse has tripped. If so, reset
the AC CB(s), or replace the AC fuse(s) in the AC Service Cabinet.
If commercial AC service is lost, seek an alternative energy source such as a
UPS or a generator.
Batt Dischrg
Alarm
Verify the system output voltage is at the correct level. If it is correct, then
check the battery discharge set point (Batt Dischrg), and if necessary adjust
accordingly.
This alarm is normally present after commercial power failure or due to the
incorrect set point for this alarm.
LVD Open – Low
Voltage
Disconnect
Open
Low Voltage Disconnect contactor has been opened in the battery termination
panel, and / or distribution panel(s). This alarm is normally present during deep
battery discharge.
If batteries are not in discharge, reset the disconnect voltage (Disconnect V) of
the contactor to a lower value, by going into LVDs Menu under Modules. See
Controller Menu Tree.
Check to make sure if the contactor is open or close by going into LVDs under
Modules, and checking contactor State. See Controller Menu Tree
Distrib Alarm
Reset the DC circuit breaker(s), or replace tripped fuse in the distribution
section.
Module Comm
Rectifier(s) module(s) is(are) not communicating, or has been removed. Replace
the removed module(s) in the shelf slot(s).
This alarm can be cleared by pressing Left button on Alarm on home screen, and
then acknowledging the pwr dev com alarm. See Controller Menu Tree.
Comm Alarm
LVD module(s) is(are) not communicating, or has been removed. Replace the
removed module(s).
This alarm can be cleared by pressing Left button on System Alarm. See
Controller Menu Tree.
I Share Alarm –
Load Share
Alarm
One or more rectifier(s) is not sharing the total system load equally. Replace the
faulty rectifier(s).
NOTE: AC OK, and DC OK LEDs of the Faulty Rectifier(s) (not sharing the load),
may still be GREEN
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