126
specifications
8. Check the wiring of the braking
resistor and braking unit
»Correct the wiring
9. Tighten the terminal or replace
the damaged cable
10. Correct the wiring
11. Separate the PG wiring from
the source of the electrical signal
interference (drive output cable)
12. Check the solutions for
interference suppression
»Check the wiring of control circuit
l, main circuit and grounding.
13.Check the load inertia settings
when using KEB, or Stall
Prevention during deceleration
14. Adjust the parameters to
suppress hunting
»Adjust n1-01 (Hunting Prevention
Gain)
Overcurrent
(Acceleration,
Deceleration and
Constant Speed)
1. The motor insulation is
damaged or the motor is
overheated
2. Grounding problem caused
by damaged motor cable
3.The drive is damaged
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
1. Check the insulation resistance
2. Check the motor power cable
3. Check the resistance between
the cable and the terminal.
4. Short circuit on drive output
side or grounding causes register
damage.
5. Measure the current flowing
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.
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