Danfoss VACON NX FI6 Operating Manual page 134

Operating Guide | VACON® NX Inverters FI4-FI8
Troubleshooting
Change the OPTAF board.
12.10.33 Fault 8 - System fault, Subcode S43 - OPTAF: Test pulse high is not detected on thermistor
Cause
Single hardware problem detected in the thermistor input.
Troubleshooting
Change the OPTAF board.
12.10.34 Fault 8 - System fault, Subcode S44 - OPTAF: STO channel 1 is not active, even if the analog
input supervision indicates
Cause
Single hardware problem detected in Safe Disable inputs or in the thermistor input.
Troubleshooting
• Change the OPTAF board.
• Change the control board.
12.10.35 Fault 8 - System fault, Subcode S45 - OPTAF: STO channel 2 is not active, even if the analog
input supervision indicates
Cause
Single hardware problem detected in Safe Disable inputs or in the thermistor input.
Troubleshooting
• Change the OPTAF board.
• Change the control board.
12.10.36 Fault 8 - System fault, Subcode S46 - OPTAF: Thermistor or analog input is not set, even if
STO is active
Cause
Single hardware problem detected in Safe Disable inputs or in the thermistor input.
Troubleshooting
• Change the OPTAF board.
• Change the control board.
134 | Danfoss A/S © 2019.07
Specifications
AQ299433367205en-000101 / DPD00908