Vertiv™ NetSure™ Control Unit (NCU) User Manual
Alarm Name Alarm Description Action to Correct
DI1 Alarm Digital input #1 alarm is active.
Check why alarm is active.
… …
DI7 Alarm Digital input #7 alarm is active.
DI8 ESTOP Digital input #8 alarm is active.
IB2-1 D01 Test Testing Relay 1 (on IB2-1 Board).
-- … …
IB2-1 D08 Test Testing Relay 8 (on IB2-1 Board).
IB2-2 (Interface Board) Alarms (IB2-2 must be present in system)
Communication Fail
IB2-2 board has lost communications with the
controller.
Check communications cables.
DI1 Alarm Digital input #1 alarm is active.
Check why alarm is active.
… …
DI7 Alarm Digital input #7 alarm is active.
DI8 Alarm Digital input #8 alarm is active.
IB2-2 D01 Test Testing Relay 1 (on IB2-2 Board).
-- … …
IB2-2 D08 Test Testing Relay 8 (on IB2-2 Board).
EIB-1 (Extended Interface Board) Alarms (EIB-1 board must be present in system)
EIB Communication Fail
EIB-1 board has lost communications with the
controller.
Check communications cables.
Bad Battery Block Battery block fails. Check batteries.
EIB-1 D01 Test Testing Relay 1 (on EIB-1 Board).
-- … …
EIB-1 D05 Test Testing Relay 5 (on EIB-1 Board).
Current1 High 1 Current Current 1 above High 1 limit.
Check why current is high.
Current1 High 2 Current Current 1 above High 2 limit.
Current2 High 1 Current Current 2 above High 1 limit.
Current2 High 2 Current Current 2 above High 2 limit.
Current3 High 1 Current Current 3 above High 1 limit.
Current3 High 2 Current Current 3 above High 2 limit.
EIB-1 (Extended Interface Board) Battery Alarms (EIB-1 Board must be present in system)
Battery Current Limit Exceeded Battery current limit point is exceeded. --
Battery Over Current Battery is in over current. --
Battery Low Capacity Battery has low capacity. Check the batteries.
EIB-2 (Extended Interface Board) Alarms (EIB-2 board must be present in system)
EIB Communication Fail
EIB-2 board has lost communications with the
controller.
Check communications cables.
Bad Battery Block Battery block fails. Check batteries.
EIB-2 D01 Test Testing Relay 1 (on EIB-2 Board).
-- … …
EIB-2 D05 Test Testing Relay 5 (on EIB-2 Board).