Troubleshooting; General Fault And Alarms - Omron V1000 Guía Rápida De Referencia

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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
Base Block
Control Fault
Control
Circuit Fault
to
Option
External
Fault
External
Fault
External
Faults
to
Ground Fault
Safe Disable
I67E-EN V1000 Quick Start Guide
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.
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.
There is a problem in the drive's control circuit.
An external fault was tripped by the upper controller via an option card.
A forward and reverse command were input simultaneously for longer than 500
ms. This alarm stops a running motor.
• 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 leakage current has exceeded 50% of the drives rated output current.
• Cable or motor insulation is broken.
• Excessive stray capacitance at drive output.
Both Safe Disable inputs are open. The drive output is safely disabled and the
motor can not be started.
7 Troubleshooting
Cause
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