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General View
3-12
The NH Plus Series UPS provides 6 dry contact outputs. These contacts can be set to
normally open or normally close. The default message is shown in the table below.
There are other 13 choices as shown below.
Contact Message
Description
7.
Internal communication
failure
The communication of module is abnormal.
8.
External parallel
communication failure
During installation of the parallel redundancy, the parallel
communication is abnormal.
9.
Output overload
warning/shutdown
The loading is over rated output of the UPS.
10.
Power module fault shutdown The module fails and the UPS is shut down.
11.
Power module warning
The module has errors, but the UPS can still function normally.
12.
EPO activated
Urgently power off the UPS.
13.
Load on manual bypass
The UPS transfers to manual bypass mode.
14.
Battery cabinet over
temperature
warning/shutdown
The temperature is too high.
15.
Output voltage abnormal
The output voltage is too high or too low.
16.
Battery need replace
Overdue for battery replacement (Compared with system
setup.)
17.
Bypass over temperature
warning/shutdown
Bypass “static transfer switch” is over temperature.
18.
Battery ground fault
Grounding error
19.
Bypass static switch fault
The bypass “static transfer switch” is abnormal.
Contact Message
Description
Pin1-2
Load on inverter
The UPS is working normally.
Pin3-4
Load on auto bypass
The UPS is in bypass mode.
Pin5-6
Mains1 input fails when
loading on inverter
The Utility is blackout or abnormal. The UPS is in backup
mode.
Pin7-8
Battery low
The UPS is in backup mode, and the battery voltage is closed
to the terminative limit. (The battery voltage is lower than
220V.)
Pin9-10
Bypass input abnormal
The bypass is abnormal (frequency, phase), and the output
frequency will follow the rating.
Pin11-12
Battery test failure
Performs the battery test. The battery voltage is lower than the
default value.
