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Victor HughesNov 2, 2025
What to do if I get a Parameter Checksum Error A.020 on my YASKAWA Controller?
- MMichael DanielsNov 2, 2025
If you encounter a Parameter Checksum Error A.020 on your YASKAWA Controller, this indicates an issue with the parameter data in the SERVOPACK. This might be due to several reasons: * A sudden drop in the power supply voltage. In this case, ensure the power supply voltage is within the specified range and initialize the parameter settings. * Interruption of power during parameter writing. If this occurred, initialize the parameter settings and set the parameters again. * Exceeding the limit for parameter writes, which may indicate a faulty SERVOPACK requiring replacement. Also, reconsider your method for writing parameters. * Noise interference from the AC power supply, ground, static electricity, or other sources. Implement countermeasures against noise. * Entry of gas, water d...
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