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UM1M820BNA User Instructions
Issue AH, March 4, 2013 Spec No. 1M820BNA (Model M820B)
Spec No. 1M820DNA (Model M820D)
60 Chapter 2. Operation
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Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
Table 4
Full Alarm Name - WEB
(Abbreviated
Alarm Name - LCD)
Alarm Description
Action to Correct
SMAC Alarms (SM-AC Module must be present in system)
(SMAC)
Supervision Fail
(Supervise Fail)
AC monitoring device has failed.
--
High Line Voltage AB
(Hi LineVolt AB)
Voltage between Line A and Line B
above high voltage threshold.
Check why voltage is high.
Very High Line Voltage AB
(VHi LineVolt AB)
Voltage between Line A and Line B
above very high voltage threshold.
Low Line Voltage AB
(Lo LineVolt AB)
Voltage between Line A and Line B
below low voltage threshold.
Check why voltage is low.
Very Low Line Voltage AB
(VLo LineVolt AB)
Voltage between Line A and Line B
below very low voltage threshold.
High Line Voltage BC
(Hi LineVolt BC)
Voltage between Line B and Line C
above high voltage threshold.
Check why voltage is high.
Very High Line Voltage BC
(VHi LineVolt BC)
Voltage between Line B and Line C
above very high voltage threshold.
Low Line Voltage BC
(Lo LineVolt BC)
Voltage between Line B and Line C
below low voltage threshold.
Check why voltage is low.
Very Low Line Voltage BC
(VLo LineVolt BC)
Voltage between Line B and Line C
below very low voltage threshold.
High Line Voltage CA
(Hi LineVolt CA)
Voltage between Line C and Line A
above high voltage threshold.
Check why voltage is high.
Very High Line Voltage CA
(VHi LineVolt CA)
Voltage between Line C and Line A
above very high voltage threshold.
Low Line Voltage CA
(Lo LineVolt CA)
Voltage between Line C and Line A
below low voltage threshold.
Check why voltage is low.
Very Low Line Voltage CA
(VLo LineVolt CA)
Voltage between Line C and Line A
below very low voltage threshold.
High Phase Voltage A
(Hi PhaseVolt A)
Phase A voltage is above high voltage
threshold.
Check why voltage is high.
Very High Phase Voltage A
(VHi PhaseVolt A)
Phase A voltage is above very high
voltage threshold.
Low Phase Voltage A
(Lo PhaseVolt A)
Phase A voltage is below low voltage
threshold.
Check why voltage is low.
Very Low Phase Voltage A
(VLo PhaseVolt A)
Phase A voltage is below very low
voltage threshold.