Parker AC10 series User Manual

10-1 Troubleshooting
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
O.C. Overcurrent
∗ too short acceleration time
∗ short circuit at output side
∗ locked rotor with motor
∗ parameter tuning is not correct
∗ prolong acceleration time
∗ is motor cable broken
∗ check if motor overloads
∗ reduce VVVF compensation value
∗ measure parameter correctly
OC1 Overcurrent 1
O.L1 Inverter Overload
∗ load too heavy
∗ reduce load; *check drive ratio
∗ increase inverter’s capacity
O.L2
Motor
Overload
∗ load too heavy
∗ reduce load; *check drive ratio
∗ increase motor’s capacity
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
P. F 1 . Input Phase Loss
∗ phase loss with input power
∗ check if power input is normal
∗ check if parameter setting is correct
PF0
Output
Phase Loss
∗ Motor is broken
∗ Motor wire is loose.
∗ Inverter is broken
∗ check if wire of motor is loose
∗ check if motor is broken
L.U.
Under-Voltage Protection
∗ Input voltage on the low side
∗ check if supply voltage is normal
∗ check if parameter setting is correct
O.H.
Heatsink
Overheat
∗ environment temperature too
high
∗ Heatsink too dirty
∗ 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
AErr Line Disconnected
∗ Analog signal line disconnected
∗ Signal source is broken
∗ Change the signal line
∗ Change the signal source
Err1 Password is Wrong
∗ When password function is valid,
password is set wrong
∗ Set password correctly
Err2
Parameters Tuning
Wrong
∗ incorrect motor parameters
entered
∗ Connect motor correctly
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
TC-Hydraulik - Rsdorfer Str. 8 - 25746 Heide - Lars Lornsen - T: +49 481 909 - 34 - l.lornsen@tc-hydraulik.de - www.tc-hydraulik.de

Parker AC10 series Specifications

General

Brand	Parker
Model	AC10 series
Category	Controller
Language	English