YASKAWA GPD 506/P5 Technical Manual

Also see for GPD 506/P5: Troubleshooting manual

Contents

8-2 Error Codes and TroubleshootingCommunication ErrorOnce the data sent from the PLC is received by the drive, the received data is checked for CRC,parity, overrun, framing, and receiving buffer overflow. If all checked items pass, the data has beenreceived normally. A communication error (CE) is declared if any data item cannot be receivedwithin 2 seconds.The GPD 506 drive will operate according to the setting of parameter n102 when a communicationerror (CE) occurs. The settings of n102 are as follows:n104 Setting Description0 Deceleration (n019) to stop after CE occurs, and theDigital Operator flashes ‘CE’.1 Coast to stop after CE occurs, and the DigitalOperator flashes ‘CE’.2 Deceleration (n021) to stop after CE occurs, and theDigital Operator flashes ‘CE’.3 Operation continues after CE occurs, and the DigitalOperator flashes ‘CE’.The default setting of n102 is ‘1’.Modbus Error CodesIf there is an error in the command message, an error code will be returned in the responsemessage. A fault response message is structured as follows:Figure 8-1. Fault Response MessageThe following table indicates the fault code for the specific type of fault that occurred.Error Code Name Fault Content01h Function Error Unregistered Function Code02h Register No. Error Unregistered Register Number03h No. of Errors Number of errors > 1621h Write-in Limit Error Upper/Lower limit exceeded in write-in data22h Write-in Error Write-in is disabled for the register specifiedxxhSLAVE ADDRESS80h + FUNC. CODE xxh03hxxhxxhCRC-16 UPPERLOWERERROR CODE