2 Overview
IST6
Series (200K-600K) Modular UPS
User Manual
26
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Allis Electric
Co., Ltd.
Figure2-20
Battery temperature compensation connection
The temperature control wire should be fixed in the higher temperature area of the battery.
2.5.5 Surge Protection Device
In areas where lightning strikes are frequent, multistage surge protection system should be installed
at the incoming wire of the mains to ensure the safe operation of the device.
IST6
series UPS can
be equipped with a Class C SPD.
If the surge protection facilities are selected, they will be installed in the UPS.
2.6 Alarm Function
Once the UPS abnormal, it will send sound & light alarm. The alarm or protection function of the
UPS is as shown in Table2-10.
Table2-10
Abnormal status and alarm/ protection function
Alarm action
Protection action
Fault name
Buzzer long beeps
Shut down all inverter output and
bypass output.
EPO on
Bypass overload protection
Bypass output under-voltage
Shut down all inverter output and
turns to bypass output.
Inverter output over-voltage
Inverter output under-voltage
Inverter overload protection
Parallel system sovereignty fault
Parallel system communication
abnormal
Maintenance bypass on
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