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
54
Table 5
Full Alarm Name – WEB
(Abbreviated
Alarm Name - LCD)
Alarm Description Action to Correct
Line AB Under Voltage 1
(L-AB UnderVolt1)
Voltage between Line A and Line B is
lower than the Low Line Voltage AB
Alarm threshold.
Check why voltage is low.
Line AB Under Voltage 2
(L-AB UnderVolt2)
Voltage between Line A and Line B is
lower than the Very Low Line Voltage
AB Alarm threshold.
Line BC Over Voltage 1
(L-BC Over Volt1)
Voltage between Line B and Line C is
higher than the High Line Voltage BC
Alarm threshold.
Check why voltage is high.
Line BC Over Voltage 2
(L-BC Over Volt2)
Voltage between Line B and Line C is
higher than the Very High Line
Voltage BC Alarm threshold.
Line BC Under Voltage 1
(L-BC UnderVolt1)
Voltage between Line B and Line C is
lower than the Low Line Voltage BC
Alarm threshold.
Check why voltage is low.
Line BC Under Voltage 2
(L-BC UnderVolt2)
Voltage between Line B and Line C is
lower than the Very Low Line Voltage
BC Alarm threshold.
Line CA Over Voltage 1
(L-CA Over Volt1)
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
(L-CA Over Volt2)
Voltage between Line C and Line A is
higher than the Very High Line
Voltage CA Alarm threshold.
Line CA Under Voltage 1
(L-CA UnderVolt1)
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
(L-CA UnderVolt2)
Voltage between Line C and Line A is
lower than the Very Low Line Voltage
CA Alarm threshold.
Phase A Over Voltage 1
(PH-A Over Volt1)
Phase A voltage is above over
voltage 1 threshold.
Check why voltage is high.
Phase A Over Voltage 2
(PH-A Over Volt2)
Phase A voltage is above over
voltage 2 threshold.