Xtreme Power Conversion Corporation
M90S-4S User’s Manual
Page 83
Uninterruptible Power Supply
Table 5-1: Output Dry Contact List
Contact
Message
Description
1
Load on inverter
The UPS is working normally.
2
Load on bypass
The UPS is in Bypass mode.
3
Load on Battery
The UPS is in Battery mode.
4
Low battery
The battery voltage is low.
5
Bypass input abnormal
The bypass voltage or frequency is ab-
normal.
6
Battery test failure
Performs the battery test. The battery
test fails.
7
Internal communication failure
DSP and MCU stop communication in
UPS module.
8
External parallel communication fail-
ure
Communication error between UPS
modules.
9
Output overload warning/shutdown Connected load is over rated output
of the UPS.
10
UPS module fault shutdown
The module fails and the UPS shuts
down.
11
UPS module warning
The module has errors, but the UPS
can still function normally.
12
EPO Active
Urgently power off the UPS.
13
Maintain Bypass
The UPS transfers to Maintain bypass
mode.
14
Module over temperature
warning/shutdown
The temperature is too high.
15
Battery replacement
Overdue for battery replacement
(Compared with system setup.)
16
Bypass static switch fault
The bypass “static transfer switch” is
abnormal.
17
Line AC fail
Power failure
18
Redundancy failure
Redundancy setting error.
Step 5: “Default setting” button: It’s to reset all configurations back to default value.
