
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
Full Alarm Name – WEB
(Abbreviated
Alarm Name - LCD)
Alarm Description Action to Correct
Voltage
AC input 3 voltage between Line C
and Line A below under voltage
--
AC Input MCCB Trip
(Input MCCB Trip)
Main input circuit breaker open. --
AC Output MCCB Trip
(OutputMCCB Trip)
Main output circuit breaker open. --
Surge protection device tripped. --
Communication Fail
(Comm Fail)
AC distribution monitoring device has
lost communications with the
Check communications cables.
LargeDU DC Distribution Alarms (Large Distribution Unit must be present in system)
(DC Distributi)
DC Over Voltage
(DC Over Volt)
DC output voltage above over voltage
threshold.
--
DC Under Voltage
(DC Under Volt)
DC output voltage below under
voltage threshold.
--
DC Output 1 Disconnected
(Output1 Discon)
Output #1 distribution device open. --
DC Output 64 Disconnected
(Output64 Discon)
Output #64 distribution device open. --
Communication Fail
(Comm Fail)
DC distribution monitoring device has
lost communications with the
Check communications cables.
Temperature
Temperature sensor #1 sensing
temperature higher than over
--
Temperature
Temperature sensor #2 sensing
temperature higher than over
--
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