Service manual

www.enc.net.cn/en Tel/Fax:[phone] Troubleshooting
112
Assistant power supply damaged
Look for service from manufacturer
or a
g
ent
Hall component damaged
Look for service from manufacturer
or a
g
ent
Unwonted amplifying circuit
Look for service from manufacturer
or a
g
ent
E016 RS485
communication
failure
Baud rate set improperly set Baud rate properly
Serial port communication error
press key to reset，
look for service
Failure warning parameter set
improperl
y
Modify F2.16, F2.17
Upper device doesn’t work
Check if upper device work and wiring
is correct
E017 PID
Disconnection
fault
PID feedback amount lost
Check the PID feedback loop wiring
is good or not
PID value instantly becomes
very small
Check the equipment abnormal or
not
E018 U-
p
hase output
phase loss
U-phase motor poor wiring
check motor U-
p
hase connection
wire
motor U-
p
hase dama
g
e exchan
g
e moto
r
Have serious mechanical
resonance, the current waveform
anomalies
Check motor and load mounting is
loose or not
Appropriately adjust V / F curve,
reducin
g
the resonance
inverter U-phase damage
seek services from manufacturer or
dealers
E019 Under voltage
failure
Under voltage
check spot input voltage
E020 System
disturbance
Serious disturbance
Reset by pressing key or
Add mains filter at power supply
input side
Main control DSP read and write
wrongly
Reset by the key-
p
ress, look for
service
E021
V
-
p
hase output
phase loss
V-phase motor poor wiring
check motor
V
-
p
hase connection
wire
motor
V
-
p
hase dama
g
e exchan
g
e moto
r
Have serious mechanical
resonance, the current waveform
anomalies
Check motor and load mounting is
loose or not
Appropriately adjust V / F curve,
reducin
g
the resonance
inverter V-phase damage
seek services from manufacturer or
dealers
E022 W-
p
hase output
phase loss
W-phase motor poor wiring
check motor W-
p
hase connection
wire
motor W-
p
hase dama
g
e exchan
g
e moto
r
Have serious mechanical
resonance, the current waveform
anomalies
Check motor and load mounting is
loose or not
Appropriately adjust V / F curve,
reducin
g
the resonance
inverter W-phase damage
seek services from manufacturer or
dealers
STOP
RESET
STOP
RESET