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UM1M820BNA User Instructions
Issue AH, March 4, 2013 Spec No. 1M820BNA (Model M820B)
Spec No. 1M820DNA (Model M820D)
44 Chapter 2. Operation
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Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
Table 4
Full Alarm Name - WEB
(Abbreviated
Alarm Name - LCD)
Alarm Description
Action to Correct
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.
--
Manual Equalize
(Manual EQ)
Battery is in manual equalize charging
mode.
--
Automatic Equalize
(Auto EQ)
Battery is in automatic equalize
charging mode.
--
Cyclic Equalize
(Cyclic EQ)
Battery is in cyclic equalize charging
mode.
--