YASKAWA 1000-Series Installation Manual

Also see for 1000-Series: Technical manual Installation manual

Contents

26 YASKAWA ELECTRIC TOBP C730600 41E 1000-Series Option DO-A3 Installation Manual7 Troubleshooting7 Troubleshooting◆ Unit-Side Error CodesTable 8 lists the various fault codes related to the option. Refer to the unit instruction manualfor further details on fault codes.Check the following items first when an error code occurs on the unit:• Are the cables connected properly and securely?• Is the option is properly installed to the unit?• Did a momentary power loss occur?Table 8 Fault Displays, Causes, and Possible SolutionsDigital Operator Display Fault NameoFA01 Option Fault (CN5-A)Option is not properly connectedCause Possible SolutionOption at unit port CN5-A was changed duringrun.Turn the power off and check the connectors between the unitand option.Digital Operator Display Fault NameoFb01 Option Fault (CN5-B)Option is not properly connectedCause Possible SolutionOption at unit port CN5-B was changed duringrun.Turn the power off and check the connectors between the unitand option.Digital Operator Display Fault NameoFb02 Option Fault (CN5-B)Two of the same options are connected simultaneously.Cause Possible SolutionSame type of option connected to portsCN5-A and CN5-B. Use only compatible options.Digital Operator Display Fault NameoFC01 Option connection error at unit port CN5-CCause Possible SolutionOption at unit port CN5-C was changed duringrun.Turn the power off and check the connectors between the unitand option.