Vertiv M830D - Page 68

NetSure
™
Control Unit (NCU)
User Manual, UM1M830BNA
Spec. No: 1M830BNA, 1M830DNA Code: UM1M830BNA
Model No: M830B, M830D Revision M, May 12, 2017
[58]
Table 5
Alarm Name
Alarm Description
Action to Correct
Line CA Over Voltage 1
Voltage between Line C and Line A is higher
than the High Line Voltage CA Alarm
threshold.
Check why voltage is high.
Line CA Over Voltage 2
Voltage between Line C and Line A is higher
than the Very High Line Voltage CA Alarm
threshold.
Line CA Under Voltage 1
Voltage between Line C and Line A is lower
than the Low Line Voltage CA Alarm
threshold.
Check why voltage is low.
Line CA Under Voltage 2
Voltage between Line C and Line A is lower
than the Very Low Line Voltage CA Alarm
threshold.
AC1 Over Voltage 1
AC1 voltage is above over voltage 1
threshold.
Check why voltage is high.
AC1 Over Voltage 2
AC1 voltage is above over voltage 2
threshold.
AC1 Under Voltage 1
AC1 voltage is below under voltage 1
threshold.
Check why voltage is low.
AC1 Under Voltage 2
AC1 voltage is below under voltage 2
threshold.
AC2 Over Voltage 1
AC2 voltage is above over voltage 1
threshold.
Check why voltage is high.
AC2 Over Voltage 2
AC2 voltage is above over voltage 2
threshold.
AC2 Under Voltage 1
AC2 voltage is below under voltage 1
threshold.
Check why voltage is low.
AC2 Under Voltage 2
AC2 voltage is below under voltage 2
threshold.
AC3 Over Voltage 1
AC3 voltage is above over voltage 1
threshold.
Check why voltage is high.
AC3 Over Voltage 2
AC3 voltage is above over voltage 2
threshold.
AC3 Under Voltage 1
AC3 voltage is below under voltage 1
threshold.
Check why voltage is low.
AC3 Under Voltage 2
AC3 voltage is below under voltage 2
threshold.
Mains Failure
Commercial AC power failure.
Check why no commercial AC power.
OB AC Unit (OB-AC Module must be present in system)
Phase A Over Voltage 1
Phase A voltage is above over voltage 1
threshold.
Check why voltage is high.
Phase A Over Voltage 2
Phase A voltage is above over voltage 2
threshold.
Phase A Under Voltage 1
Phase A voltage is below under voltage 1
threshold.
Check why voltage is low.
Phase A Under Voltage 2
Phase A voltage is below under voltage 2
threshold.