MY Series (10kVA-40kVA) UPS
User Manual
6 Use and Operation
91
the battery once every 2 months. The charging time for the standard battery should be more than
10 hours every time.
If the UPS hasn't been used for a long time, it is recommended to charge the battery more than 10
hours every three months.
Generally, the working life of battery is 3 to 5 years. If battery is not so good, replace it in time.
The battery replacement should be performed by authorized professional.
6.7 Troubleshooting
6.7.1 Common Fault
As shown in Table6-1, it only includes some common fault diagnosis. If any doubt, contact the local
office or distributor for details.
Table6-1
Troubleshooting
Fault phenomenon
Possible reason
The mains normal, after starting
the UPS, it outputs normally,
but it works in the battery mode
and the buzzer beeps
intermittently.
1.
Check if the contactors and wiring terminals in the input
circuit are in good condition;
2.
Check if the displayed input voltage amplitude or
frequency of mains on the LCD is beyond the allowable
range of UPS;
3.
Check if the mains input breaker is disconnected, if yes,
please close the breaker again.
After installing UPS, connecting
with power will fuse the fuse or
cause tripping operation.
The wiring of UPS input or output is short circuit.
After starting, the LCD display
and output are normal. But once
connecting with load, it will
stop outputting immediately.
1.
UPS is overload seriously or the output circuit is
short-circuit. Please reduce load to proper capacity or find
the short-circuit reason. The common reason is that the
output changeover socket short-circuit or the input
short-circuit after UPS damage;
2.
The load is not started according to "high power device
→
small power device". Restart the UPS, and after the UPS
works steadily, start high power load first, and then start
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