HMU8-860 ATS Remote Monitoring Controller User Manual Page 14 of 50
The alarm interface can display contents of fault alarm and warning alarm. Each type of alarm
can display up to 20 detailed contents. If there are specific alarm contents, check HAT860 status
according to the content.
Table 9 – Key Descriptions of Alarm Interface
Icon
Key
Description
Alarm Mute
Press this key to eliminate the alarm sound of display module, and the
key white part turns red at the same time;
Press this key again, the alarm sound is active again, and the key red
part turns white.
Alarm Reset
Press this key to reset the alarm initiated by the master control module.
When receiving the fault alarm of master control module, fault alarm is active, alarm light will fast
flash (5 times 1 second), the upper alarm information display area will flash red at the same time;
when the alarm is removed, alarm light will extinguish.
Table 10 – Fault Alarm Descriptions
No.
Status Name
Description
1
QS1 Close Failure
QS1 fails to close.
2
QS1 Open Failure
QS1 fails to open.
3
QS2 Close Failure
QS2 fails to close.
4
QS2 Open Failure
QS2 fails to open.
5
S1 Load Overcurrent
Trip
When the overcurrent action is set as trip and S1 takes load, current
is greater than the set value.
6
S2 Load Overcurrent
Trip
When the overcurrent action is set as trip and S2 takes load, current
is greater than the set value.
7
Forced Open Fault
Forced open (non-fire cutoff) action is set as fault, when this input
is active, forced open fault alarm occurs.
8
S1 Genset Fault
Only when system has 2 gensets and S1 is generating, S1 fails to
start.
9
S2 Genset Fault
Only when system has 2 gensets and S2 is generating, S2 fails to
start.
10
S1 Breaker Trip Alarm
This input is active.
11
S1 Breaker Trip Alarm
This input is active.
12
Input
1-6
Comm.
Failure Fault
Fault alarm will be initiated when expand input port 1-6
communication fails and alarm action is set as fault.
13
Output 1-3 Comm.
Failure Fault
Fault alarm will be initiated when expand output port 1-3
communication fails and alarm action is set as fault.
14
Load Switching Fail
In load stepwise switching process, close or open failure alarm
occurs and switching failure action is set as fault.
15
Earth Fault
When earth current detection is enabled and the current is greater
than the set value, fault alarm will be initiated when the action is
selected.
16
QTIE Close Failure
In auto mode, if QTIE close signal can’t be detected after close
output delay, QTIE close failure alarm will be initiated.
