11 · FC 301/302 · WARNING/ALARM
For 11 · FC 301/302 · WARNING/ALARM, brand is Danfoss; model / series is FC 301/302; fault code is 11; fault name is Motor thermistor overtemp; type is WARNING/ALARM, verified against its source on 2026-09-01.
- Brand
- Danfoss
- Model / series
- FC 301/302
- Fault code
- 11 verified
- Fault name
- Motor thermistor overtemp verified
- Type
- WARNING/ALARM verified
- Cause
- Check whether the thermistor is disconnected. Select whether the frequency converter issues a warning or an alarm in parameter 1-90 Motor Thermal Protection. verified
- Corrective action
- • Check for motor overheating. • Check if the motor is mechanically overloaded. • When using terminal 53 or 54, check that the thermistor is connected correctly between either terminal 53 or 54 (analog voltage input) and terminal 50 (+10 V supply). Also check that the terminal switch for 53 or 54 is set for voltage. Check that parameter 1-93 Thermistor Resource selects terminal 53 or 54. • When using terminal 18, 19, 31, 32, or 33 (digital inputs), check that the thermistor is connected correctly between the digital input terminal used (digital input PNP only) and terminal 50. Select the terminal to use in parameter 1-93 Thermistor Resource. verified
What the source says
WARNING/ALARM 11, Motor thermistor overtemp
— files.danfoss.com, retrieved 2026-09-01
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Cause
Check whether the thermistor is disconnected. Select whether the frequency converter issues a warning or an alarm in parameter 1-90 Motor Thermal Protection.
Corrective action
• Check for motor overheating. • Check if the motor is mechanically overloaded. • When using terminal 53 or 54, check that the thermistor is connected correctly between either terminal 53 or 54 (analog voltage input) and terminal 50 (+10 V supply). Also check that the terminal switch for 53 or 54 is set for voltage. Check that parameter 1-93 Thermistor Resource selects terminal 53 or 54. • When using terminal 18, 19, 31, 32, or 33 (digital inputs), check that the thermistor is connected correctly between the digital input terminal used (digital input PNP only) and terminal 50. Select the terminal to use in parameter 1-93 Thermistor Resource.
— all from files.danfoss.com, retrieved 2026-09-01
Source
- files.danfoss.comhttps://files.danfoss.com/download/Drives/MG33MO22.pdf