Error 20 Device monitoring
Error: 20.1 (1401hex | 5121dec) Description: Supply voltage fault | ||
|---|---|---|
| Response: Output stage inhibit + open line contactor + module bus response "Critical" System state: Error acknowledgment with CPU reset | |
Cause | Measure | |
Internal electronics supply voltage or externally connected DC 24 V supply voltage not within permitted voltage range. | – Check the voltage level of the external DC 24 V supply voltage and check for correct connection. – Acknowledge the error. – If the error occurs repeatedly, contact SEW‑EURODRIVE Service. | |
24 V power supply unit overloaded. | Check the project planning for the power demand. | |
Error: 20.7 (1407hex | 5127dec) Description: Internal hardware fault | ||
|---|---|---|
| Response: Output stage inhibit + open line contactor + module bus response "Critical" | |
Cause | Measure | |
Fault in device hardware. | – Acknowledge the error. – If the error occurs repeatedly, replace the device. | |
Error: 20.8 (1408hex | 5128dec) Description: Fan – warning | ||
|---|---|---|
| Response: Warning + line contactor unchanged + module bus response "Warning" with self-reset | |
Cause | Measure | |
Fan function impaired. | – Check fan for contamination. – If the warning occurs repeatedly, contact SEW‑EURODRIVE Service. | |
Error: 20.9 (1409hex | 5129dec) Description: Fan – fault | ||
|---|---|---|
| Response: Output stage inhibit + line contactor unchanged + module bus response "Critical" | |
Cause | Measure | |
Fan defective. | Contact SEW-EURODRIVE Service. | |
Error: 20.10 (140Ahex | 5130dec) Description: Fan – supply voltage error | ||
|---|---|---|
| Response: Output stage inhibit + line contactor unchanged + module bus response "Critical" | |
Cause | Measure | |
Supply voltage of fan missing. | Contact SEW-EURODRIVE Service. | |
Error: 20.22 (1416hex | 5142dec) Description: Pre-charge protection defective | ||
|---|---|---|
| Response: Output stage inhibit + line contactor unchanged + module bus response "Critical" | |
Cause | Measure | |
Internal fuse or reverse polarity protection defective. | Contact SEW-EURODRIVE Service. | |
Error: 20.23 (1417hex | 5143dec) Description: Temperature detection in power section faulty | ||
|---|---|---|
| Response: Output stage inhibit + line contactor unchanged + module bus response "Standard" | |
Cause | Measure | |
Fault in device hardware. Power section does not provide temperature data. | – Acknowledge the error. – Contact SEW‑EURODRIVE Service. | |
