Fault 28 FCB drive functions
Error: 28.9 (1C09hex | 7177dec) Description: FCB 18 – Rotor position identification not possible | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
Rotor position identification with an incremental encoder was aborted. | – Restart the rotor position identification. – Check whether the encoder is connected correctly. – Check whether the encoder is defective. | |
Result of rotor position identification (measured encoder offset) cannot be stored in encoder. | Store the measured encoder offset in the inverter. | |
In the "Automatic" operating mode, the result of rotor position identification (measured encoder offset) cannot be stored in the encoder. In this operating mode, the measured value can only be stored in the inverter | – Set the operating mode to "Manual". or – Store the measured encoder offset in the inverter. | |
Error: 28.10 (1C0Ahex | 7178dec) Description: FCB 25 – Unbalanced motor phases | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
Significantly different values determined in the three phases while measuring stator resistances. | – Check whether the motor is connected correctly. – Check all contact points on the motor and inverter. – Check the motor and motor cable for damage. | |
Error: 28.11 (1C0Bhex | 7179dec) Description: FCB 25 – High impedance motor phase | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
At least one motor phase could not be measured during motor parameter measurement. | – Check whether the motor is connected correctly. – Check all contact points on the motor and inverter. – Check the motor and motor cable for damage. | |
Error: 28.12 (1C0Chex | 7180dec) Description: FCB 25 – Stator resistance measurement timeout | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
Motor parameter measurement activated while motor is turning. | – Stop motor. – Start motor parameter measurement when the motor is at standstill. | |
Error: 28.13 (1C0Dhex | 7181dec) Description: FCB 25 – Characteristic curve identification not possible | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
The characteristic curve cannot be clearly identified by the motor parameter measurement. | Contact SEW-EURODRIVE Service. | |
Error: 28.15 (1C0Fhex | 7183dec) Description: FCB 25 – Timeout | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
Measuring of rotor resistance, leakage inductance, and stator inductance not completed. | Contact SEW-EURODRIVE Service. | |
Error: 28.23 (1C17hex | 7191dec) Description: Minimum speed too high | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
Minimum speed greater than application limit of the speed. | – Reduce the minimum speed. or – Increase the application limit. | |
Error: 28.24 (1C18hex | 7192dec) Description: FCB 05 – Limits of skip range outside setpoint limits | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
The speed range of the active speed resonance skip function is larger than the permitted setpoint range. Both the minimum speed and the application limit are within the skip range. As such, each setpoint falls within the skip range. | – Adjust the range of the speed resonance skip function. – Adjust the minimum speed. – Adjust the application limit. | |
