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Operating Guide | VACON® NXS/NXP Air-cooled
Troubleshooting
•
Do a check of the actual amount and flow of cooling air.
•
Examine the heat sink for dust.
•
Do a check of the ambient temperature.
•
Make sure that the switching frequency is not too high in relation to the ambient temperature and the motor load.
•
For FR10-FR11 Standalone: check door filters, and clean or replace if needed.
12.10.54 Fault 14 - AC drive overtemperature, Subcode S2 - Overtemperature in power board
Cause
Overheating detected in AC drive.
Heat sink temperature is over 90 °C (194 °F). Overtemperature alarm is issued when the heat sink temperature goes over 85 °C (185 °F).
In 525–690 V, FR6: Heat sink temperature is over 77 ºC (170.6 °F). Overtemperature alarm is issued when the heat sink temperature
goes over 72 ºC (161.6 °F).
Troubleshooting
•
Do a check of the actual amount and flow of cooling air.
•
Examine the heat sink for dust.
•
Do a check of the ambient temperature.
•
Make sure that the switching frequency is not too high in relation to the ambient temperature and the motor load.
•
For FR10-FR11 Standalone: check door filters, and clean or replace if needed.
12.10.55 Fault 14 - AC drive overtemperature, Subcode S4 - Overtemperature on ASIC board or
driver boards
Cause
Overheating detected in AC drive.
Heat sink temperature is over 90 °C (194 °F). Overtemperature alarm is issued when the heat sink temperature goes over 85 °C (185 °F).
In 525–690 V, FR6: Heat sink temperature is over 77 ºC (170.6 °F). Overtemperature alarm is issued when the heat sink temperature
goes over 72 ºC (161.6 °F).
Troubleshooting
•
Do a check of the actual amount and flow of cooling air.
•
Examine the heat sink for dust.
•
Do a check of the ambient temperature.
•
Make sure that the switching frequency is not too high in relation to the ambient temperature and the motor load.
•
For FR10-FR11 Standalone: check door filters, and clean or replace if needed.
212 | Danfoss A/S © 2020.02
Specifications
AQ275638903263en-000301 / DPD00910
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