Vertiv M830D - Page 70

NetSure
™
Control Unit (NCU)
User Manual, UM1M830BNA
Spec. No: 1M830BNA, 1M830DNA Code: UM1M830BNA
Model No: M830B, M830D Revision M, May 12, 2017
[60]
Table 5
Alarm Name
Alarm Description
Action to Correct
Low Line Voltage CA
Voltage between Line C and Line A below
low voltage threshold.
Check why voltage is low.
Very Low Line Voltage CA
Voltage between Line C and Line A below
very low voltage threshold.
High Phase Voltage A
Phase A voltage is above high voltage
threshold.
Check why voltage is high.
Very High Phase Voltage A
Phase A voltage is above very high voltage
threshold.
Low Phase Voltage A
Phase A voltage is below low voltage
threshold.
Check why voltage is low.
Very Low Phase Voltage A
Phase A voltage is below very low voltage
threshold.
High Phase Voltage B
Phase B voltage is above high voltage
threshold.
Check why voltage is high.
Very High Phase Voltage B
Phase B voltage is above very high voltage
threshold.
Low Phase Voltage B
Phase B voltage is below low voltage
threshold.
Check why voltage is low.
Very Low Phase Voltage B
Phase B voltage is below very low voltage
threshold.
High Phase Voltage C
Phase C voltage is above high voltage
threshold.
Check why voltage is high.
Very High Phase Voltage C
Phase C voltage is above very high voltage
threshold.
Low Phase Voltage C
Phase C voltage is below low voltage
threshold.
Check why voltage is low.
Very Low Phase Voltage C
Phase C voltage is below very low voltage
threshold.
Mains Failure
Commercial AC power failure.
Check why no commercial AC power.
Severe Mains Failure
Commercial AC power voltage is too low.
Check why voltage is low.
High Frequency
Commercial AC power has high frequency.
--
Low Frequency
Commercial AC power has low frequency.
--
High Temperature
AC input temperature sensor sensing high
temperature condition.
--
Low Temperature
AC input temperature sensor sensing low
temperature condition.
--
Phase A High Current
High phase A current.
--
Phase B High Current
High phase B current.
--
Phase C High Current
High phase C current.
--
Large DU AC Distribution Group Alarms (Large Distribution Unit must be present in system)
Mains Failure
Commercial AC power failure.
--
Large DU AC Distribution Unit Alarms (Large Distribution Unit must be present in system)
Mains 1 Failure
AC input 1 power failure.
--