Vertiv M830D - Page 57

NetSure
™
Control Unit (NCU)
User Manual, UM1M830BNA
Spec. No: 1M830BNA, 1M830DNA Code: UM1M830BNA
Model No: M830B, M830D Revision M, May 12, 2017
[47]
Table 5
Alarm Name
Alarm Description
Action to Correct
NCU DO1 Test
Testing NCU Relay DO1.
--
NCU DO2 Test
Testing NCU Relay DO2.
NCU DO3 Test
Testing NCU Relay DO3.
NCU DO4 Test
Testing NCU Relay DO4.
Over Maximum Power Alarm
NOT IMPLEMENTED AT THIS TIME
NOT IMPLEMENTED AT THIS TIME
SMS Modem Fail
SMS modem has failed.
Check why SMS modem failed.
Manual State
NCU in manual state.
--
SNMP Config Error
SNMP configuration error.
--
Ambient Temp Summary Alarm
Ambient temperature alarm summary (one
or more alarms designated as ambient
temperature is active).
Check additional alarms.
System Current Alarm
System current alarm active.
Check why system current alarm is active.
Rectifier Group Alarms
Multiple Rectifiers Fail
More than one rectifier has failed.
Check input voltage to rectifiers. Replace
rectifiers.
Rectifier Lost
A rectifier cannot be detected by the
controller.
Reset the Rectifier Lost alarm. Replace
defective rectifier.
ECO Active
Rectifier Energy Optimization Mode is
enabled.
Check why system was placed into this
mode.
All Rectifiers Comm Fail
No response from all rectifiers.
Check the connectors and cables or the CAN
loop. Replace the controller.
ECO Cycle Alarm
If Energy Optimization Mode is enabled and
the controller oscillates in and out of Energy
Optimization more than 5 times, this alarm
is generated.
Check for other alarms.
Reset this alarm.
Rectifier Alarms
AC Input Fail
No AC input power to a rectifier.
Check why no AC input power available.
Rect Temperature High
A rectifier has a high temperature condition.
Check why temperature is high.
Rectifier Fail
A rectifier has a fault condition.
Refer to Rectifier User Manual for
troubleshooting information.
HVSD
A rectifier has an overvoltage condition.
Rectifier Protected
A rectifier is in protected mode.
Fan Fail
A rectifier’s fan has failed.
Replace fan.
Power Limit
A rectifier is in power limit.
--
Rectifier Communication Fail
A rectifier has lost communications with the
controller.
Check communications cables. Reset the
Communication Fail alarm. Replace the
rectifier.
Derated
A rectifier is in output power derating mode.
Refer to Rectifier User Manual for
troubleshooting information.
Current Share Alarm
A rectifier has a current sharing alarm.
AC Under Voltage Protection
A rectifier is in under voltage protection
mode.
Rectifier Summary Alarm
Rectifier alarm summary (one or more
alarms designated as rectifier is active).
Check additional alarms.