Vertiv M830D - Page 52

NetSure
™
Control Unit (NCU)
User Manual, UM1M830BNA
Spec. No: 1M830BNA, 1M830DNA Code: UM1M830BNA
Model No: M830B, M830D Revision M, May 12, 2017
[42]
Table 5
Alarm Name
Alarm Description
Action to Correct
System Temp 1 Sensor Fail
Temperature sensor #1 failure.
Replace temperature sensor.
System Temp 2 Sensor Fail
Temperature sensor #2 failure.
System Temp 3 Sensor Fail
Temperature sensor #3 failure.
IB2-1 Temp 1 Sensor Fail
Temperature sensor #1 (connected to IB2-1
Board) failure.
Replace temperature sensor.
IB2-1 Temp 2 Sensor Fail
Temperature sensor #2 (connected to IB2-1
Board) failure.
EIB-1 Temp 1 Sensor Fail
Temperature sensor #1 (connected to EIB-1
Board) failure.
EIB-1 Temp 2 Sensor Fail
Temperature sensor #2 (connected to EIB-1
Board) failure.
DHCP Failure
The DHCP function is enabled, but effective
IP address cannot be acquired.
Verify DHCP IP address.
PLC Config Error
PLC configuration error.
Re-enter the PLC logic functions.
485 Communication Failure
485 communications failure.
--
Minor Summary
Minor alarm summary (one or more alarms
designated as minor is active).
Check additional alarms.
Major Summary
Major alarm summary (one or more alarms
designated as major is active).
Check additional alarms.
Critical Summary
Critical alarm summary (one or more alarms
designated as critical is active).
Check additional alarms.
Rectifier Group Lost
A rectifier group cannot be detected by the
controller.
Check communications cables.
Check additional alarms.
Over Voltage 1
Output voltage is higher than the Over
Voltage 1 Alarm threshold.
Check why system voltage is high. Check
the alarm setting.
Over Voltage 2
Output voltage is higher than the Over
Voltage 2 Alarm threshold.
Under Voltage 1
Output voltage is lower than the Under
Voltage 1 Alarm threshold.
Check why system voltage is low. If there is a
mains failure, check if some load could be
switched off in order to prolong the
operating time of the plant. If the system
load is too high related to rectifier capacity,
install additional rectifiers. If the batteries
are being recharged, the alarm will cease by
itself when battery voltage has increased to
the charging level.
Under Voltage 2
Output voltage is lower than the Under
Voltage 2 Alarm threshold.
Over Voltage 1 (24V)
Output voltage is higher than the Over
Voltage 1 Alarm threshold.
Check why system voltage is high. Check
the alarm setting.
Over Voltage 2 (24V)
Output voltage is higher than the Over
Voltage 2 Alarm threshold.