Bypass input
Mains circuit
input
Maintenance bypass
-----
AC
I
DC rectifier
DC
I
DC boost
DC
I
AC inverter
Charger
ECO mode operation process
5. 7 Fault mode
---
........ ➔
Output
LED indicator in fault mode is as shown in the figure below: alarm LED Indicator (red)
is illuminated, meanwhile LCD displays fault icon and fault code.
When UPS is faulty, the alarm indicator is illuminated, the sound of the UPS buzzer
lingers on. According to fault type, fault mode is divided into the fault of cutting off
output and the fault of bypass output.
Cut off output after failure in following status:
• Short circuit fault of output A
I
B / C phases voltage
• Short circuit fault of output AB / BC / CA line voltage
• Beyond 165% overload
• EPO fault of configured cutting off output
• Any fault when bypass is abnormal
Keep bypass supplying power to the load for other faults beyond above status.
After the UPS enter fault mode, press mute button ---
■
1
+ ► to mute the sound
(auto cancel mute in one day), meanwhile contact your supplier or after-sales
personnel for troubleshooting.
~37~
