TT100
·
59
·
Appendix 1 Trouble Shooting
When malfunction occurs to inverter, don‟t run by resetting immediately. Check any
causes and get it removed if there is any.
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 repairing without
due authorization.
Table 1-1
Inverter’s Common Cases of Malfunctions
Fault
显示
Description
Causes
Countermeasures
O.C.
Hardware
Overcurrent
* too short acceleration time
* short circuit at output side
* locked rotor with motor
*prolong acceleration time;
*whether motor cable is broken;
*check if motor overloads;
*reduce V/F compensation value
OC1
Software
Overcurrent
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 inverter‟s capacity
O.E.
DC
Over-Voltage
*supply voltage too high;
*load inertia too big
*deceleration time too short;
*motor inertia rise again
*check if rated voltage is input;
*add braking resistance(optional);
*increase deceleration time
P.F1.
Input
Out-Phase
*out-phase with input power
*check if power input is normal;
*check if parameter setting is correct.
PF0
Output
Out-phase
* Motor is broken
* check if wire of motor is loosen.
* 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.
Radiator
Overheat
*environment temperature too high;
*radiator too dirty
*install
place
not
good
for
ventilation; *fan damaged
*improve ventilation;
*clean air inlet and outlet and
radiator;
*install as required;
*change fan
ERR1
Password is
wrong
*When password function is valid,
password is set wrong.
*please set password correctly.
ERR2
Measurement
parameters
wrong
* Do not connect motor when
measuring parameters
*please connect motor correctly.
ERR3
Current
malfunction
before running
*Current alarm signal exists before
running.
*check if control board is connected
with power board well.
*ask for help from manufacture.
ERR4
Current zero
excursion
maulfucntion
*Flat cable is loosened.
*Current detector is broken.
*check the flat cable.
*ask for help from manufacture.
No P.F1. protection for single-phase and three-phase under 4.0KW.