Brochures and Data Sheets

NetSure
™
ACU+ Controller (Advanced Control Unit Plus)
User Instructions, UM1M820BNA (Issue AK, March 3, 2014)
Spec. No: 1M820BNA, 1M820DNA Code: UM1M820BNA
Model No: M820B, M820D Issue AK, March 3, 2014
39
Table 5
Full Alarm Name – WEB
(Abbreviated
Alarm Name - LCD)
Alarm Description Action to Correct
Fan Failure
(Fan Failure)
A rectifier’s fan has failed. Replace fan.
Current Limit
(Current Limit)
A rectifier is in current limit.
Rectifier overload. The load is higher
than rectifier capacity. If the batteries
are being recharged, the alarm will
cease by itself when the battery
voltage has increased to the charging
level. If the system load is higher than
the rectifier capacity, the batteries will
discharge. If this is the reason, install
additional rectifiers. If one or more of
the rectifiers are defective, replace
the faulty rectifiers.
Rectifier Communication Fail
(Rect Comm Fail)
A rectifier has lost communications
with the Controller.
Check communications cables. Reset
the Communication Fail alarm.
Replace the rectifier.
Derated
(Derated)
A rectifier is in output power derating
mode.
Refer to Rectifier User Manual for
troubleshooting information.
Current Share Alarm
(Curr Share Alm)
A rectifier has a current sharing
alarm.
AC Under Voltage Protection
(Low AC Protect)
A rectifier is in under voltage
protection mode.
Battery Group Alarms
(Battery Group)
Short Battery Test Running
(ShortBatTestRun)
Battery is in short time test mode. --
Equalize for Test
(EQ for Test)
Battery is in equalize charge test
mode.
--
Manual Test
(Manual Test)
Battery is in manual battery discharge
test mode.
--
Planned Test
(Planned Test)
Battery is in planned battery test
mode.
--
AC Fail Test
(AC Fail Test)
AC power has been switched off to
the rectifiers to perform a battery
discharge test.
--