20
P F C
O V E R
T E M P
PFC part temperature high
Cool it down
B Y P
L I N E
L O S S
Bypass
not available
L I N E
O R D E R
E R R
The
3phase
A,B,C(R,S,T)
not in right order
Check the phase order
B Y P A S S
O V E R L O A D
Bypass overloaded
Reduce the not critical
load
Charger
fail
Charger
is fault
Check the charger
Fault
Fault
Fault
Fault code
code
code
code
Explanation
Explanation
Explanation
Explanation
Solutions
Solutions
Solutions
Solutions
N O
F A U L T
UPS is working normally
B U S
S O F T
T I M E O U
T'
BUS
soft
start
time
exceeded
Check PFC part
I N V S O F T
T I M E O U T'
INVERTER soft start time
exceeded
Check the inverter part
I N V
R E L A Y
F A I L
Inverter
relay fault
Check the relay
INV SHORT
INVERTER
short circuit
Check the inverter part
I N V
V O L T
L O W
Inverter voltage low
Check the inverter
I N V
V O L T
H I G H
Inverter voltage high
Check the inverter
I N V
O V E R
L O A D
Inverter
voltage
overload
Check the inverter
B U S
V O L T
O V E R
BUS over
voltage
Check the bus
B U S
V O L T
U N D E R
BUS under voltage
Check the bus
I N V
O V E R
T E M P
Inverter over
temperature
Check the inverter
P F C
O V E R
T E M P
PFC over temperature
Check the PFC
B Y P
S H O R T
Bypass
short circuit
Check the bypass
B Y P
O V E R
L O A D
Bypass overload
Check the bypass
B U S
P E A K
O V E R
Bus peak voltage over
Check the bus
B U S D I S C H G
F A I L
Bus discharging fault
Check the bus
B U S
S H O R T
Bus short circuit
Check the bus
P F C
H A R D
F A I L
PFC hardware
fault
Check the PFC
P F C
C U R R
F A I L
PFC current fault
Check the PFC
I N V
C U R R
F A I L
Inverter current fault
Check the inverter