Blastrac BMG-444, Руководство по эксплуатации

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26
OLF
[Motor overload]
•
Triggered by excessive motor
current.
•
Check the setting of the motor thermal protection,
check the
motor load. Wait for the motor to cool down before
restarting.
OPF1
[1 output phase
loss]
•
Loss of one phase at drive output.
•
Check the connections from the drive to the motor.
OPF2
[3 motor phase
loss]
•
Motor not connected or motor power
too low.
•
Output contactor open.
•
Instantaneous instability in the motor
current.
•
Check the connections from the drive to the motor.
OSF
[Mains
overvoltage]
•
Supply voltage too high.
•
Disturbed mains supply.
•
Check the supply voltage.
SCF1
[Motor short
circuit]
•
Short-circuit or grounding at the drive
output.
•
Check the cables connecting the drive to the motor,
and the
motor insulation.
•
Reduce the switching frequency.
•
Connect chokes in series with the motor.
•
Check the adjustment of speed loop and brake.
SCF3
[Ground short
circuit]
•
Significant earth leakage current at
the drive output if several motors are
connected in parallel.
•
Check the cables connecting the drive to the motor,
and the
motor insulation.
•
Reduce the switching frequency.
•
Connect chokes in series with the motor.
•
Check the adjustment of speed loop and brake.
•
Reduce the switching frequency.
SCF5
[Motor short
circuit]
•
Short-circuit at drive output.
•
Check the cables connecting the drive to the motor,
and the
motor’s insulation.
•
Contact Schneider Electric Product Support.
SSF
[Torque/current
lim]
•
Switch to torque or current limitation.
•
Check if there are any mechanical problems.
PHF
[Input phase loss]
•
Drive incorrectly supplied or a fuse
blown.
•
One phase missing.
•
3-phase ATV320 used on a single-phase
supply mains.
•
Unbalanced load.
This protection only operates with the drive
on load.
•
Check the power connection and the fuses.
•
Use a 3-phase supply mains.
USF
[Undervoltage]
•
Supply mains too low.
•
Transient voltage dip.
•
Check the voltage and the parameters.
Note: If the problem cannot be solved or another fault code appears, write down the fault code and
contact your local Blastrac dealer.