Fault Code - Njoy Ranger 30KT User Manual

• Some warning alarms can't be muted unless the error is fixed. Please refer
to section 3-3 for details.
3.4.11. Operation in Fault mode
• When Fault LED illuminates and the buzzer beeps continuously, it means
that there is a fatal error with the UPS. Users can get the fault code from
"DATA LOG" menu. Please refer to the Section 3-2-6 for details.
• Please check the loads, wiring, ventilation, utility, battery and so on
after the fault occurs. Don't try to turn on the UPS again before solving the
issue. If the problems can't be fixed, please contact the distributor or service
personnel immediately.
• For emergency case, please cut off connection from utility, external
battery, and output immediately to avoid possible damage to the UPS or
equipment.

3.5. Fault Code

Fault code Fault event
01 Bus start failure
02 Bus over
03 Bus under
04 Bus unbalance
06 Converter over current
11 Inverter soft start failure
12 High inverter voltage
Inverter B output(line to
15
neutral) short circuited
Inverter C output(line to
16
neutral) short circuited
Inverter A-B output (line
17
to line) short circuited
Inverter B-C output (line
18
to line) short circuited
34
Fault code Fault event
43 Overload
46 Incorrect UPS setting
MCU communication
47
failure
Two DSP firmware
versions are
48
incompatible in parallel
system.
Bypass phase short
60
circuited
Bypass SCR short
61
circuited
Bypass SCR open
62
circuited
Voltage waveform
63
abnormal in A phase
Voltage waveform
64
abnormal in B phase
Voltage waveform
65
abnormal in C phase
Inverter current detect
66
abnormal