LiteOn EVO 6800 Series, Manual

Page: 213 / 261

213
Keypad
Display
Fault Name Cause Possible Solution
4.The load is too heavy
5. Settings for acceleration
or deceleration time is too
short
6.The drive is running a
special purpose motor or a
motor larger than the drive
rated capacity
7. A magnetic contactor
(MC) on the output side of
the drive has turned on or
off
8. V/F set incorrectly
9. Excessive torque
compensation
10. Electrical signal
interference causes drive
malfunction
11. Overexcitation gain is
set too high
12. Run command was
applied while motor was
coasting
13. Incorrect motor code
14. The motor does not
match the drive control
method
15. The motor cable is too
long
into the motor
5. Check the motor capacity
6. Calculate the torque required
during acceleration according to
the load inertia and acceleration
time. If the required torque is
insufficient, check the motor
capacity.
7. Install a sequence controller to
ensure the MC does not open or
close when the drive is
outputting voltage.
8. Check the ratios between the
frequency and voltage set by
V/F.
9. Adjust d1-02 to d1-11 (or
d1-13 to d1-22 for motor 2)
10.Check the amount of torque
compensation
11. Find out possible solutions to
suppress the electrical signal
interference
11. Check if the fault occurs
frequently with overexcitation
function operation
12. Enable Speed Search via
multi-function input terminal
14. Check the control method
(A1-02)
15. Use a larger drive
SC
IGBT Fault or Output
Short Circuit
1. Motor has been
damaged due to the motor
insulation weakened or
overheat
2. The cable is damaged
3. Hardware fault
4. The drive is damaged
1. Replace the motor or check
the motor insulation resistance
2. Repair any short circuits and
check the motor power cable
EF0 Retain
EF1to
EF7
External Fault
（Input Terminal S1 to
S7） 1. An external device
tripped an alarm
2. Incorrect wiring 1. Remove the cause of the
external fault then reset the
multi-function input.