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7 Troubleshooting
I67E-EN V1000 Quick Start Guide 27
7 Troubleshooting
General Fault and Alarms
Faults and alarms indicate problems in the drive or in the machine.
An alarm is indicated by a code on the data display and the flashing ALM LED. The drive
output is not necessarily switched off.
A fault is indicated by a code on the data display and the ALM LED is on. The drive output
is always switched off immediately and the motor coast to stop.
To remove an alarm or reset a fault, trace the cause, remove it and reset the drive by pushing
the Reset key on the operator or cycling the power supply.
NOTICE! This lists up the most important alarms and faults only. Please refer to
the instruction manual for a complete list.
LED Display ALM FLT Cause
Base Block
The software base block function is assigned to one of the digital inputs and the input is
off. The drive does not accept Run commands.
Control Fault
The torque limit was reached during deceleration for longer than 3 sec. when in Open
Loop Vector control
• The load inertia is too big.
• The torque limit is too low.
• The motor parameters are wrong.
Control Circuit
Fault
There is a problem in the drive’s control circuit.
Option
External Fault
An external fault was tripped by the upper controller via an option card.
External Fault
A forward and reverse command were input simultaneously for longer than 500 ms.
This alarm stops a running motor.
External Faults
• An external fault was triggered by an external device via one of the digital inputs S1
to S6.
• The digital inputs are set up incorrectly.
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 output.
Safe Disable
Both Safe Disable inputs are open. The drive output is safely disabled and the motor
can not be started.
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