8
Service
Fault table standard
Operating Instructions – MOVIMOT
®
flexible
258
8.6.29 Fault 42 Lag error
Subfault: 42.1
Description: Positioning lag error
Response: Positioning lag error
Cause Measure
A lag fault occurred during positioning.
Incorrect encoder connection.
Check the connection of the encoder.
Position encoder inverted or not installed cor-
rectly at the track.
Check the installation and connection of the posi-
tion encoder.
Wiring faulty. Check the wiring of encoder, motor, and line
phases.
Acceleration ramps too short. Extend acceleration ramps.
P component of position controller too small. Set P component of position controller to a larger
value.
Incorrectly set speed controller parameters. Check controller parameters.
Value of lag error tolerance too small. Increase the lag error tolerance.
Mechanical components cannot move freely or
are blocked.
Make sure mechanical parts can move freely,
check whether they are blocked.
Subfault: 42.2
Description: Jog mode lag error
Response: Output stage inhibit
Cause Measure
A lag fault occurred in jog mode (FCB 20).
Incorrect encoder connection.
Check the connection of the encoder.
Position encoder inverted or not installed cor-
rectly at the track.
Check the installation and connection of the posi-
tion encoder.
Wiring faulty. Check the wiring of encoder, motor, and line
phases.
Acceleration ramps too short. Extend acceleration ramps.
P component of position controller too small. Set P component of position controller to a larger
value.
Incorrectly set speed controller parameters. Check controller parameters.
Value of lag error tolerance too small. Increase the lag error tolerance.
Mechanical components cannot move freely or
are blocked.
Make sure mechanical parts can move freely,
check whether they are blocked.
29128668/EN – 12/2019
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