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
52
Table 5
Full Alarm Name – WEB
(Abbreviated
Alarm Name - LCD)
Alarm Description Action to Correct
Under Voltage 1 (24V)
(24V Under Volt1)
DC output is below under voltage 1
threshold.
Check to see why voltage is low.
Under Voltage 2 (24V)
(24V Under Volt2)
DC output is below under voltage 2
threshold.
DC Fuse Unit Alarms
(DC Fuse Unit)
Fuse 1 Alarm
(Fuse 1 Alarm)
DC output fuse #1 is open.
Find out and eliminate the reason the
fuse is open before replacing. Check
for overload or short circuit. If the fuse
was manually removed, check with
the person that removed it before
reinserting it.
…
…
Fuse 10 Alarm
(Fuse 10 Alarm)
DC output fuse #10 is open.
SMDU DC Fuse Alarms (SM-DU Module must be present in system)
(SMDU DC Fuse)
Fuse 1 Alarm
(DC Fuse 1 Alm)
DC output fuse #1 is open.
Find out and eliminate the reason the
fuse is open before replacing. Check
for overload or short circuit. If the fuse
was manually removed, check with
the person that removed it before
reinserting it.
…
…
Fuse 16 Alarm
(DC Fuse 16 Alm)
DC output fuse #16 is open.
SMDUP DC Fuse Alarms (SM-DU+ Module must be present in system)
(SMDUP DC Fuse)
Fuse 1 Alarm
(DC Fuse 1 Alm)
DC output fuse #1 is open.
Find out and eliminate the reason the
fuse is open before replacing. Check
for overload or short circuit. If the fuse
was manually removed, check with
the person that removed it before
reinserting it.
…
…
Fuse 25 Alarm
(DC Fuse 25 Alm)
DC output fuse #25 is open.
LVD Unit Alarms (Low voltage disconnect must be present in system)
(LVD Unit)
LVD1 Disconnect
(LVD1 Disconnect)
LVD1 contactor is in disconnect
mode.
--