Vertiv M830D - Page 59

NetSure
™
Control Unit (NCU)
User Manual, UM1M830BNA
Spec. No: 1M830BNA, 1M830DNA Code: UM1M830BNA
Model No: M830B, M830D Revision M, May 12, 2017
[49]
Table 5
Alarm Name
Alarm Description
Action to Correct
Fan Fail
A solar converter’s fan has failed.
Replace fan.
Current Limit
A solar converter is in current limit.
Solar converter overload. The load is higher
than solar converter capacity. If one or more
of the solar converters are defective, replace
the faulty solar converters.
Solar Converter Comm Fail
A solar converter has lost communications
with the controller.
Check communications cables. Reset the
Solar Converter Communication Fail alarm.
Replace the solar converter.
Derated
A solar converter is in output power derating
mode.
Refer to Solar Converter User Manual for
troubleshooting information.
Current Share Alarm
A solar converter has a current sharing
alarm.
Input Under Voltage Protection
A solar converter is in under voltage
protection mode.
Input Not DC
Input to solar converter mounting position is
not DC.
--
Battery Group Alarms
Short Battery Test Running
Battery is in short time test mode.
--
Equalize for Test
Battery is in equalize charge test mode.
--
Manual Test
Battery is in manual battery discharge test
mode.
--
Planned Test
Battery is in planned battery test mode.
--
AC Fail Test
AC power has been switched off to the
rectifiers to perform a battery discharge
test.
--
Manual Equalize
Battery is in manual equalize charging
mode.
--
Automatic Equalize
Battery is in automatic equalize charging
mode.
--
Cyclic Equalize
Battery is in cyclic equalize charging mode.
--
Power Split Equalize
In Power Split mode, “System A” starts
equalize charging with the “System B”.
--
Power Split Battery Test
In Power Split mode, “System A” starts the
test with the “System B”.
--
Discharge Current Imbalance
Battery distribution current imbalance
alarm.
The currents from two groups of batteries
are not equal. Check the batteries.