Brochures and Data Sheets

NetSure
™
ACU+ Controller (Advanced Control Unit Plus)
User Instructions, UM1M820BNA (Issue AK, March 3, 2014)
Spec. No: 1M820BNA, 1M820DNA Code: UM1M820BNA
Model No: M820B, M820D Issue AK, March 3, 2014
53
Table 5
Full Alarm Name – WEB
(Abbreviated
Alarm Name - LCD)
Alarm Description Action to Correct
LVD2 Disconnect
(LVD2 Disconnect)
LVD2 contactor is in disconnect
mode.
--
LVD1 Failure
(LVD1 Failure)
LVD1 contactor has failed.
Check the contactor functions.
Replace the contactor.
LVD2 Failure
(LVD2 Failure)
LVD2 contactor has failed.
SMDU LVD Alarms (SM-DU Module must be present in system)
(SMDU LVD)
LVD 1 Disconnected
(LVD 1 Disconn)
LVD1 contactor is in disconnect
mode.
--
LVD 2 Disconnected
(LVD 2 Disconn)
LVD2 contactor is in disconnect
mode.
--
LVD 1 Contactor Failure
(LVD 1 Failure)
LVD1 contactor has failed.
Check the contactor functions.
Replace the contactor.
LVD 2 Contactor Failure
(LVD 2 Failure)
LVD2 contactor has failed.
LargeDU LVD Alarms (Large Distribution Unit must be present in system)
(LargeDU LVD)
LVD1 Disconnected
(LVD1 Disconnect)
LVD1 contactor is in disconnect
mode.
--
LVD2 Disconnected
(LVD2 Disconnect)
LVD2 contactor is in disconnect
mode.
--
Rectifier AC Alarms
(Rectifier AC)
Line AB Over Voltage 1
(L-AB Over Volt1)
Voltage between Line A and Line B is
higher than the High Line Voltage AB
Alarm threshold.
Check why voltage is high.
Line AB Over Voltage 2
(L-AB Over Volt2)
Voltage between Line A and Line B is
higher than the Very High Line
Voltage AB Alarm threshold.