KALE AIRFREE Series Quick Start Manualline page 12

Code Desc. Reason
Power outages or
instantaneous power
outages
Input Power Lack Phase
E. Lu Under pressure in
operation
Excessive input voltage
fluctuations
Notice: this fault is detected when the bus voltage is lower than the under voltage protection point (F10.19) when the controller is
running
Code Desc. Reason
Overload
Acceleration and
deceleration time set too
small
Torque lift set too large
E. oL1 Motor overload
V/F curve setting is not
appropriate+
The characteristics of
electronic thermal relay are
inconsistent with the
characteristics of motor
load.
Abnormal output current
due to input missing phase
Code Desc. Reason
Overload
Acceleration and
deceleration time too
short
Torque lift set too large
Controller
E. oL2
Overload V/F curve setting is not
appropria
Abnormal output current
due to input missing
phase
INSTRUCTION MANUAL
Solution
Check power and reset
Confirmation of Main Circuit Wiring
Improve the power supply to meet the rated voltage of the
controller if the main circuit power supply is no problem,
check the main circuit side of the electromagnetic
contactor whether there is a problem
Solution
Reduce the load and increase the curve coefficient of
overload protection
Increase F01.22,F01.23 (Acceleration and deceleration time)
Decrease F04.01[ torque increase]
To determine the relationship between voltage and
frequency of V/F curve setting, modify F04.00[VF curve
setting]
Modify the custom V/F curve related parameters
(F04.10~F04.19)
Use of external thermal relays
Check the main loop to remove input phase
Solution
Reduce load
Increase the curve coefficient of overload protection of motor
Increase F01.22、F01.23[ acceleration and deceleration time]
Decrease F04.01[ torque increase]
Decrease F04.01[ torque increa
To determine the relationship between voltage and frequency
of V/F curve setting, modify F04.00[VF curve setting]
Modify the custom V/F curve related parameters
(F04.10~F04.19)
Check the main loop to remove input phase
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