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UM1M820BNA User Instructions
Issue AH, March 4, 2013 Spec No. 1M820BNA (Model M820B)
Spec No. 1M820DNA (Model M820D)
68 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
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
Controller.
Check communications cables.
Temperature 1 Over
Temperature
(T1 Over Temp)
Temperature sensor #1 sensing
temperature higher than over
temperature threshold.
--
Temperature 2 Over
Temperature
(T2 Over Temp)
Temperature sensor #2 sensing
temperature higher than over
temperature threshold.
--
Temperature 3 Over
Temperature
(T3 Over Temp)
Temperature sensor #3 sensing
temperature higher than over
temperature threshold.
--
Temperature 1 Under
Temperature
(T1 Under Temp)
Temperature sensor #1 sensing
temperature lower than under
temperature threshold.
--
Temperature 2 Under
Temperature
(T2 Under Temp)
Temperature sensor #2 sensing
temperature lower than under
temperature threshold.
--
Temperature 3 Under
Temperature
(T3 Under Temp)
Temperature sensor #3 sensing
temperature lower than under
temperature threshold.
--
Temperature 1 Sensor Failure
(T1 Sensor Fail)
Temperature sensor #1 failure.
--
Temperature 2 Sensor Failure
(T2 Sensor Fail)
Temperature sensor #2 failure.
--