Fault 20 Device monitoring
Subfault: 20.1 Description: Supply voltage fault | ||
|---|---|---|
| Response: Output stage inhibit System state: Fault acknowledgment with CPU reset | |
Cause | Measure | |
24 V power supply unit overloaded. | Check the project planning for the power demand. | |
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 fault. – If the fault occurs repeatedly, contact SEW‑EURODRIVE Service. | |
Subfault: 20.2 Description: Supply voltage overloaded | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
The current load on the current paths of the DC 24 V standby supply voltage inside the device is too high. The signal outputs of the device were therefore de-energized. | – Remove all external consumers: – At the digital outputs of the basic device – At any options that may be present – At all encoder connections – At other consumers at the DC 24 V output voltage terminals – Acknowledge the fault. – Reconnect the consumers with the device, one after the other, until the fault message appears once again. – Connect a consumer with a lower current consumption or eliminate the short circuit. | |
Subfault: 20.7 Description: Internal hardware fault | ||
|---|---|---|
| Response: Output stage inhibit System state: Fault acknowledgment with CPU reset | |
Cause | Measure | |
Fault in the device hardware. | – Acknowledge the fault. – If the fault occurs repeatedly, replace the device. | |
Subfault: 20.8 Description: Fan – warning | ||
|---|---|---|
| Response: Warning with self-reset | |
Cause | Measure | |
Fan function impaired. | – Check fan for dirt. – If the warning occurs repeatedly, contact SEW‑EURODRIVE Service. | |
Subfault: 20.9 Description: Fan – fault | ||
|---|---|---|
| Response: Application stop + output stage inhibit | |
Cause | Measure | |
Fan defective. | Contact SEW‑EURODRIVE Service. | |
Subfault: 20.10 Description: Fan – supply voltage fault | ||
|---|---|---|
| Response: Emergency stop + output stage inhibit | |
Cause | Measure | |
Supply voltage of fan missing. | Contact SEW‑EURODRIVE Service. | |
Subfault: 20.11 Description: STO – switching delay | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
Switching delay between STO signals F-STO_P1 and F-STO_P2. | – Check the STO wiring. – Make sure that both STO signals are switched to low level. – Acknowledge the fault. | |
Subfault: 20.21 Description: External 24 V backup voltage missing | ||
|---|---|---|
| Response: Output stage inhibit System state: Fault acknowledgment with CPU reset | |
Cause | Measure | |
In the current configuration, the device is only fully functional with external backup voltage. | Connect backup voltage and energize. | |
Subfault: 20.23 Description: Temperature detection in power section faulty | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
Fault in the device hardware. Power section does not provide temperature data. | – Acknowledge the fault. – Contact SEW‑EURODRIVE Service. | |
Subfault: 20.24 Description: Required communication module missing | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
A communication module used in the device configuration has been removed. | Plug in the communication module again. | |
Subfault: 20.25 Description: Communication module added | ||
|---|---|---|
| Response: Output stage inhibit | |
Cause | Measure | |
A communication module that is not used in the device configuration has been added. | Remove the communication module. | |
Subfault: 20.28 Description: Interior fan – warning | ||
|---|---|---|
| Response: Warning with self-reset | |
Cause | Measure | |
Function of interior fan is impaired. | Contact SEW‑EURODRIVE Service. | |
Subfault: 20.29 Description: Interior fan – fault | ||
|---|---|---|
| Response: Application stop + output stage inhibit | |
Cause | Measure | |
Interior fan defective. | Contact SEW‑EURODRIVE Service. | |
Subfault: 20.30 Description: Interior fan – supply voltage fault | ||
|---|---|---|
| Response: Emergency stop + output stage inhibit | |
Cause | Measure | |
The supply voltage of the interior fan is not available. | Contact SEW‑EURODRIVE Service. | |
