YASKAWA L1000V CIMR-LC V Series, Быстрый старт

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8 Troubleshooting
YASKAWA Europe TOEP C710606 50B - AC Drive L1000V - Quick Start Guide EN 45
Up/Down
Command
Error

The Up and Down command were input
simultaneously for longer than 500 ms.
Check the sequence and make sure that the
Up and Down command are not enabled at
the same time.
External Faults
 
• An external fault was triggered by an exter-
nal device via one of the digital inputs (S3
to S7).
• The digital inputs are set incorrectly.
• Find out why the device tripped the EF.
Remove the cause and reset the fault.
• Check the functions assigned to the digital
inputs.
Speed
Reference
Missing

Parameter d1-18 is set to 3, leveling speed
detection is not assigned to a digital input
(H1-


53) and no speed was selected
while an Up or Down command was entered.
• Check the speed selection inputs.
• Check the sequence. Make sure the speed
is selected before the Up or Down com-
mand is input.
Ground Fault

• Ground leakage current has exceeded 50%
of the drives rated output current.
• Cable or motor insulation is broken.
• Excessive stray capacitance at drive out-
put.
• Check the output wiring and the motor for
short circuits or broken insulation. Replace
any broken parts.
• Reduce the carrier frequency.
Safe Disable

The Safe Disable input is open. The drive
output is safely disabled and the motor can
not be started.
• Check why the upper controller’s safety
device disabled the drive. Remove the
cause and restart.
• Check the wiring.Terminals HC, H1 must
be linked if the Safe Disable function is not
utilized.
Output Phase
Loss

• Output cable is disconnected or the motor
winding is damaged.
• Drive output wires are loose.
• Motor is too small (less than 5% of drive
current).
• Check the power supply.
• Make sure that all cables are properly con-
nected to the correct terminals.
Overcurrent

• Short-circuit or ground fault on the drive
output side.
• The load is too heavy.
• The acceleration or deceleration ramps are
too short.
• Incorrect motor data or V/f pattern settings.
• The motor contactor was switched while
the drive was running.
• Check the output wiring and the motor for
short circuits or broken insulation. Replace
the broken parts.
• Check the machine for damages (gears,
etc.) and repair any broken parts.
• Make sure the brake fully opens.
• Check accel/decel settings in C1-
 and
C2-  .
• Check V/f pattern settings in E1-  .
• Check the output contactor sequence.
Heatsink
Overheat
 
• Surrounding temperature is too high.
• The cooling fan has stopped.
• The heatsink is dirty.
• The airflow to the heatsink is restricted.
• Check the surrounding temperature and
install cooling devices if necessary.
• Check the drive cooling fan.
• Clean the heatsink.
• Check the airflow around the heatsink.
LED Display AL FLT Possible Cause Corrective Action
EF
EF03 to
EF07
FrL
GF
Hbb
LF
oC
oH or oH1