LSIS G100 User Manual

Items
Cause
Remedy
The motor
rotation is
different from
the setting.
The V/F pattern is set incorrectly.
Set a V/F pattern that is suitable
for the motor specification.
The motor
deceleration
time is too long
even with
Dynamic
Braking (DB)
resistor
connected.
The deceleration time is set too long.
Change the setting accordingly.
The motor torque is insufficient.
If motor parameters are normal, it
is likely to be a motor capacity
fault.
Replace the motor with a model with
increased capacity.
Replace the inverter with a model
that has increased capacity.
Operation is
difficult in
underload
applications.
The carrier frequency is too high.
Reduce the carrier frequency.
Over-excitation has occurred due to
an inaccurate V/F setting at low
speed.
Reduce the torque boost value to
avoid over-excitation.
While the
inverter is in
operation, a
control unit
malfunctions or
noise occurs.
Noise occurs due to switching inside
the inverter.
Change the carrier frequency to
the minimum value.
Install a micro surge filter in the
inverter output.
When the
inverter is
operating, the
earth leakage
breaker is
activated.
An earth leakage breaker will
interrupt the supply if current flows to
ground during inverter operation.
Connect the inverter to a ground
terminal.
Check that the ground resistance
is less than 100Ω for 200 V
inverters and less than 10Ω for 400
V inverters.
Check the capacity of the earth
leakage breaker and make the
appropriate connection, based on
the rated current of the inverter.
Reduce the carrier frequency.
Make the cable length between the
inverter and the motor as short as
possible.

LSIS G100 Specifications

General

Brand	LSIS
Model	G100
Category	Inverter Drive
Language	English