5 Use and Operation
UPS IST7 (10KVA-40KVA)
User Manual
72
NO.
Fault symbol
Buzzer status
Meaning
actual wiring do not match the fault, please
check the main power or bypass wiring, and
make the actual system is consistent with the
set mode system.
3
Maintain
bypass fault
Long beep
UPS maintenance bypass protection, inverted
output closed, please checks back board
maintenance bypass detection port is shorted.
4
Output fault
Long beep
The UPS output is faulty, detect the UPS
output is short or over load.
5
Mode
mismatch
Long beep
The UPS of the input and output mode in the
parallel does not match the actual system.
6
Voltage
mismatch
Long beep
The UPS of the output voltage in the parallel
does not match the actual system.
7
Frequency
mismatch
Long beep
The UPS of the frequency in the parallel does
not match the actual system.
8
Bypass
mismatch
Long beep
The UPS of the bypass voltage or frequency in
the parallel does not match the actual system.
9
Pattern
mismatch
Long beep
The UPS parallel mode setting in the parallel
system does not match the actual system.
10
Power
mismatch
Long beep
The UPS of the output power setting in the
parallel does not match the actual system.
11
Battery
number
mismatch
Long beep
The UPS of the battery number setting in the
parallel does not match the actual system.
12
Parallel
mismatch
Long beep
The UPS of parameters setting in the parallel
does not match the actual system.
13
Short
mismatch
Long beep
The UPS of short turn to bypass setting in the
parallel does not match the actual system.
14
Two-ended
Long beep
Fall-off fault at both ends of the parallel wire.
