-11-
INSTRUCTION MANUAL
www.kalefans.net
Code
Desc.
Reason
Solution
E. Lu
Under pressure in
operation
Power outages or
instantaneous power
outages
Check power and reset
Input Power Lack Phase
Confirmation of Main Circuit Wiring
Excessive input voltage
fluctuations
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
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
Solution
E. oL1
Motor overload
Overload
Reduce the load and increase the curve coefficient of
overload protection
Acceleration and
deceleration time set too
small
Increase F01.22,F01.23 (Acceleration and deceleration time)
Torque lift set too large
Decrease F04.01[ torque increase]
V/F curve setting is not
appr
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)
The characteristics of
electronic thermal relay are
inconsistent with the
characteristics of motor
load.
Use of external thermal relays
Abnormal output current
due to input missing phase
Check the main loop to remove input phase
Code
Desc.
Reason
Solution
E. oL2
Controller
Overload
Overload
Reduce load
Increase the curve coefficient of overload protection of motor
Acceleration and
deceleration time too
short
Increase F01.22、F01.23[ acceleration and deceleration time]
Decrease F04.01[ torque increase]
Torque lift set too large
Decrease F04.01[ torque increa
V/F curve setting is not
appropria
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)
Abnormal output current
due to input missing
phase
Check the main loop to remove input phase
