Danfoss VACON OPTEA User Manual

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Reboot the AC drive.
If the fault reoccurs, contact the nearest distributor.
12.2.46 Fault Code 20 - Safety System, S52 – Increm. enc., Fault Number 1
Cause
A problem with encoder signal A.
Troubleshooting
Check the encoder cabling.
12.2.47 Fault Code 20 - Safety System, S52 – Increm. enc., Fault Number 2
Cause
A problem with encoder signal B.
Certain encoders can intentionally drive all their inputs to low during start-up or after the detection of a failure.
Troubleshooting
Check the encoder cabling.
Check if the used encoder can force the signals to an invalid state to indicate a fault.
12.2.48 Fault Code 20 - Safety System, S52 – Increm. enc., Fault Number 3
Cause
A problem with encoder reference signal.
Troubleshooting
Check the encoder cabling.
12.2.49 Fault Code 20 - Safety System, S52 - Increm. Enc., Fault Number Other
Cause
Faults related to the encoder.
A wrong phase shift between signals.
Discrepancy between different speed sources is too high.
Troubleshooting
Check the encoder connections.
Check the encoder parameters.
Check the encoder.
Reboot the AC drive.
If the fault reoccurs, contact the nearest distributor.
12.2.50 Fault Code 20 - Safety System, S53 – Prox. sensor, Fault Number 2
Cause
A short circuit between the signals of the proximity sensor 1.
Troubleshooting
Check the proximity sensor cabling.
12.2.51 Fault Code 20 - Safety System, S53 – Prox. sensor, Fault Number 3
Cause
A short circuit between the signals of the proximity sensor 2.
Troubleshooting
Check the proximity sensor cabling.
AQ319736045637en-000101 / DPD01798158 | Danfoss A/S © 2021.06
Fault Tracing
VACON® NXP Advanced Safety Options
Operating Guide

Danfoss VACON OPTEA Specifications

General

Brand	Danfoss
Model	VACON OPTEA
Category	DC Drives
Language	English