Parker 10G-46-0600-BF

Troubleshooting10-1
AC10 Inverter
Chapter 10 Troubleshooting
When the inverter is tripped check what the cause is and rectify as required.
Take counter measures by referring to this manual in case of any malfunctions on inverter. Should it still
be unsolved, contact the manufacturer. Never attempt any repairs without due authorization.
Table 10-1 Inverter’s Common Cases of Malfunctions
Fault
Description
Causes
Possible Solution
AErr
Line Disconnected
 Analog signal line disconnected
 Signal source is broken
 Change the signal line
 Change the signal source
CE
Communication
Timeout
 Communication fault
 PC/PLC does not send command at fixed time
 Check communication line for reliable connected
Err1
Password is Wrong
 When password function is
enabled, password is set wrong
 Set password correctly
Err2
Tuning Parameters
Wrong
 incorrect motor parameters
entered
 Connect motor correctly
 Enter correct motor data
Err3
Current Malfunction
Before Running
 Current alarm signal exists
before running
 Check if control board is properly
connected to power board
 Contact Parker
Err4
Current Zero
Excursion Malfunction
 Flat cable is loosened
 Current detector is broken
 Check the flat cable
 Contact Parker
Err5
PID Parameters are
set Wrong
 PID parameters are set wrong.
 Set the parameters correctly
FL
Flycatching Fault
 Flycatching failure
 Track again
 Contact manufacturer
GP
Ground fault
 Motor cable is broken and short-
circuit to earth
 The insulation of motor is broken
and short circuit to earth
 Inverter has fault
 Change motor cable
 Repair or replace motor
 SEE ALSO: OC, OC2 and ERR4
L.U.
Under-Voltage
Protection
 Low voltage on the input side
 Check if supply voltage is normal
 Check if parameter setting is correct
OC/OC2
(Note)
Overcurrent
 Too short acceleration time
 Short circuit at output side
 Locked rotor with motor
 Parameter tuning is not correct
 Prolong acceleration time
 Ask if motor is cable broken
 Check if motor overloads
 Reduce VVVF compensation value
 Measure parameter correctly
OC1
Overcurrent 1
O.E.
DC Over-Voltage
 Supply voltage too high
 Load inertia too big
 Deceleration time too short
 Motor inertia rise again
 Parameter of speed loop PID is
set abnormally
 Check if rated voltage is input
 Add braking resistance(optional)
 Increase deceleration time
 Set the parameter of rotary speed loop PID
correctly
O.H.
Heatsink
Overheat
 Environment temperature too
high
 Poor ventilation
 Fan damaged
 Carrier wave frequency or
compensation curve is too high
 Improve ventilation
 Clean air inlet and outlet and radiator
 Install as required
 Change fan
 Decrease carrier wave frequency or
compensation curve
O.L1
Inverter Overload
 Load too heavy
 Reduce load; *check drive ratio
 Increase inverter’s capacity