BENSHAW RSi GM2 Series - Other Faults

245
Troubleshooting
890054-00-00
GM2 Series VFD
Other Faults
When a fault other than those identified as faults or warnings occurs, refer to the following table
for possible causes and remedies.
Items
Cause
Remedy
Parameters cannot
be set.
The inverter is in operation (run mode).
Stop the inverter to change to program
mode.
The parameter access is incorrect.
Check the correct parameter access
level.
The password is incorrect.
Check the password, disable the
parameter lock.
Low voltage is detected.
Check the power input to resolve the low
voltage.
The motor does not
rotate.
The frequency command source is set
incorrectly.
Check the frequency command source
setting.
The operation command (start) source is
set incorrectly.
Check the start command source setting.
Power is not supplied to the terminal
R/S/T.
Check the terminal connections R/S/T
and U/V/W.
The charge lamp is turned off.
Turn on the inverter.
The start command (Run) is off.
Apply the start command (Run).
The motor is locked.
Unlock the motor or lower the load level.
The load is too high.
Operate the motor independently (no
load).
An emergency stop signal is input.
Reset the emergency stop signal.
The wiring for the control circuit terminal
is incorrect.
Check the wiring for the control circuit
terminal.
The selection for the frequency
reference source is incorrect.
Check the selected frequency reference
source.
The input voltage or current for the
frequency reference is incorrect.
Check the input voltage or current for the
frequency reference.
The PNP/NPN mode is selected
incorrectly.
Check the PNP/NPN mode setting.
The frequency reference value is too
low.
Check the frequency reference and input
a value above the minimum frequency.
Motor torque is too low.
Change the operation modes (V/F,
IMSensorless). If the fault remains,
replace the inverter and/or motor with
larger models.
The motor rotates
in the opposite
direction to the
command.
VFD output or motor wiring is incorrect.
Determine if the VFD output wiring is
wired correctly to the phases (U/V/W) of
the motor.
The control circuit wiring to Fx and Rx
terminals is incorrect.
Check the forward/reverse control wiring.
The motor only
rotates in one
direction.
Reverse rotation prevention is selected.
Remove the reverse rotation prevention.
3-wire control - The control circuit wiring
to Rx or 3-wire terminals not provided.
Check the control wiring of the signal
associated with the 3-wire operation.
The motor is
overheating.
The load is too high.
Reduce the load. Increase Acc/Dec time.
Check the motor parameters and set the
correct values.
Replace the motor and/or the inverter
with larger models.