Error 20 Device monitoring
Error: 20.1 (1401hex | 5121dec) Description: Supply voltage fault | ||
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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 fault. – If the fault occurs repeatedly, contact SEW‑EURODRIVE Service. | |
24 V power supply unit overloaded. | Check the project planning for the power demand. | |
Error: 20.2 (1402hex | 5122dec) Description: Supply voltage overloaded | ||
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Cause | Measure | |
The current load on the current paths of the DC 24 V supply voltage inside the device is too high. The signal outputs of the device were therefore de-energized. | – Remove all external consumers: – from the digital outputs of the basic device – from any options that may be present – from all encoder connections – from 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 error message appears once again. – Connect a consumer with a lower current consumption or eliminate the short circuit. | |
Error: 20.3 (1403hex | 5123dec) Description: Safety card undervoltage DC 24 V | ||
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Cause | Measure | |
Undervoltage of DC 24 V supply voltage detected. | – Check the DC 24 V supply voltage. – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.4 (1404hex | 5124dec) Description: Safety card overvoltage DC 24 V | ||
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Cause | Measure | |
Overvoltage of DC 24 V supply voltage detected. | – Check the DC 24 V supply voltage. – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.5 (1405hex | 5125dec) Description: Safety card overvoltage protection DC 24 V | ||
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Cause | Measure | |
Error detected in overvoltage protection circuit. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.6 (1406hex | 5126dec) Description: Safety card short-circuit protection DC 24 V | ||
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Cause | Measure | |
Error detected in short-circuit protection circuit. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.7 (1407hex | 5127dec) Description: Internal hardware fault | ||
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Cause | Measure | |
Error detected in device hardware. | – Acknowledge the fault. – If the fault occurs repeatedly, replace the device. | |
Error: 20.8 (1408hex | 5128dec) Description: Fan – warning | ||
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Cause | Measure | |
The function of the fan is impaired. | – Check fan for contamination. – If the warning occurs repeatedly, contact SEW‑EURODRIVE Service. | |
Error: 20.9 (1409hex | 5129dec) Description: Fan – fault | ||
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Cause | Measure | |
The fan is defective. | Contact SEW-EURODRIVE Service. | |
Error: 20.10 (140Ahex | 5130dec) Description: Fan – supply voltage fault | ||
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Cause | Measure | |
Supply voltage of fan missing. | Contact SEW-EURODRIVE Service. | |
Error: 20.11 (140Bhex | 5131dec) Description: STO – switching delay | ||
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Cause | Measure | |
Switching delay between STO signals F-STO_P1 and F-STO_P2. | – Check the STO wiring. – Make sure that both STO signals F-STO_P1 and F-STO_P2 are switched simultaneously. – Make sure that both STO signals F-STO_P1 and F-STO_P2 are switched to low level. Then acknowledge the error. | |
The state change of the STO signals is too slow. | Ensure steeper switching edge. | |
An internal defect has occurred in the STO circuit. | Contact SEW-EURODRIVE Service. | |
Error: 20.12 (140Chex | 5132dec) Description: Safety card temperature error | ||
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Cause | Measure | |
Measured temperature outside specified value range. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.13 (140Dhex | 5133dec) Description: Safety card undervoltage DC 3.3 V | ||
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Cause | Measure | |
Undervoltage of DC 3.3 V supply voltage detected. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.14 (140Ehex | 5134dec) Description: Safety card overvoltage DC 3.3 V | ||
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Cause | Measure | |
Overvoltage of DC 3.3 V supply voltage detected. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.15 (140Fhex | 5135dec) Description: Safety card DC 12 V encoder supply voltage | ||
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Cause | Measure | |
Upper or lower limit value of DC 12 V encoder supply voltage exceeded. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.16 (1410hex | 5136dec) Description: Safety card DC 24 V encoder voltage supply | ||
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Cause | Measure | |
Upper or lower limit value of DC 24 V encoder supply voltage exceeded. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.17 (1411hex | 5137dec) Description: Undervoltage encoder reference voltage | ||
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Cause | Measure | |
Undervoltage of encoder reference voltage detected. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.18 (1412hex | 5138dec) Description: Overvoltage encoder reference voltage | ||
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Cause | Measure | |
Overvoltage of encoder reference voltage detected. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.19 (1413hex | 5139dec) Description: Safety card undervoltage of reference voltage | ||
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Cause | Measure | |
Undervoltage of reference voltage detected. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.20 (1414hex | 5140dec) Description: Safety card overvoltage of reference voltage | ||
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Cause | Measure | |
Overvoltage of reference voltage detected. | – Switch the device off and on again. – If the error occurs repeatedly, replace the safety card and send it together with the error number to SEW‑EURODRIVE. For further support, contact SEW‑EURODRIVE Service. | |
Error: 20.21 (1415hex | 5141dec) Description: External 24 V backup voltage missing | ||
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Cause | Measure | |
In the current configuration, the device is only fully functional with external backup voltage. | Connect backup voltage and energize. | |
Error: 20.22 (1416hex | 5142dec) Description: Pre-charge protection defective | ||
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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 | ||
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Cause | Measure | |
Error detected in device hardware. Power section does not provide temperature data. | – Acknowledge the fault. – Contact SEW‑EURODRIVE Service. | |
Error: 20.24 (1418hex | 5144dec) Description: Required communication module missing | ||
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Cause | Measure | |
A communication module used in the device configuration has been removed. | Plug in the communication module again. | |
Error: 20.25 (1419hex | 5145dec) Description: Communication module added | ||
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Cause | Measure | |
A communication module that is not used in the device configuration has been added. | Remove the communication module. | |
Error: 20.28 (141Chex | 5148dec) Description: Interior fan – warning | ||
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Cause | Measure | |
Function of interior fan impaired. | Contact SEW-EURODRIVE Service. | |
Error: 20.29 (141Dhex | 5149dec) Description: Interior fan – fault | ||
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Cause | Measure | |
Interior fan defective. | Contact SEW-EURODRIVE Service. | |
Error: 20.30 (141Ehex | 5150dec) Description: Interior fan – supply voltage fault | ||
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Cause | Measure | |
Supply voltage of interior fan not present. | Contact SEW-EURODRIVE Service. | |
Error: 20.31 (141Fhex | 5151dec) Description: Supply voltage on gateway overloaded | ||
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Cause | Measure | |
The connected CBus stations overload the DC 24 V supply voltage at the gateway. | – Check the cabling. – Reduce the number of CBus stations. | |
Error: 20.32 (1420hex | 5152dec) Description: Unexpected restart | ||
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Cause | Measure | |
Restart of device not triggered by normal device function. | – Switch the device off and on again. – If the fault occurs repeatedly, contact SEW‑EURODRIVE Service. | |
Error: 20.33 (1421hex | 5153dec) Description: Voltage outside valid range | ||
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Cause | Measure | |
The functionally safe component of the device has determined that the 24 V supply voltage is outside the valid range. | Check the supply voltage. | |
Error: 20.34 (1422hex | 5154dec) Description: Critical fault | ||
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Cause | Measure | |
A fault was detected by the functionally safe component of the device. | Replace the device. | |
Error: 20.35 (1423hex | 5155dec) Description: System error | ||
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Cause | Measure | |
A system error was detected by the functionally safe component of the device. | Replace the device. | |
