VACON® NXP Advanced Safety Options
Operating Guide
12.2.26 Fault Code 20 - Safety System, S38 – SQS, Fault Number 1
Cause
•
The safety function is controlled from the PLC over fieldbus but the requested safety function is not parameterized to be used at
all.
Troubleshooting
•
Make sure that the configurations of the PLC and the Advanced safety option board match.
12.2.27 Fault Code 20 - Safety System, S38 – SQS, Fault Number 5
Cause
•
An acknowledgment signal was received when the safety function was still requested and could not be acknowledged.
Troubleshooting
•
Deactivate the safety function request before acknowledging.
12.2.28 Fault Code 20 - Safety System, S39 – SSR, Fault Number 1
Cause
•
The safety function is controlled from the PLC over fieldbus but the requested safety function is not parameterized to be used at
all.
Troubleshooting
•
Make sure that the configurations of the PLC and the Advanced safety option board match.
12.2.29 Fault Code 20 - Safety System, S39 – SSR, Fault Number 9
Cause
•
An acknowledgment signal was received when the safety function was still requested and could not be acknowledged.
Troubleshooting
•
Deactivate the safety function request before acknowledging.
12.2.30 Fault Code 20 - Safety System, S40 – SLS, Fault Number 1
Cause
•
The safety function is controlled from the PLC over fieldbus but the requested safety function is not parameterized to be used at
all.
Troubleshooting
•
Make sure that the configurations of the PLC and the Advanced safety option board match.
12.2.31 Fault Code 20 - Safety System, S40 – SLS, Fault Number 8
Cause
•
An acknowledgment signal was received when the safety function was still requested and could not be acknowledged.
Troubleshooting
•
Deactivate the safety function request before acknowledging.
12.2.32 Fault Code 20 - Safety System, S43 – SMS, Fault Number 1
Cause
•
The safety function is controlled from the PLC over fieldbus but the requested safety function is not parameterized to be used at
all.
Troubleshooting
•
Make sure that the configurations of the PLC and the Advanced safety option board match.
Danfoss A/S © 2021.06
Fault Tracing
AQ319736045637en-000101 / DPD01798 | 155
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