Parameter Reference D-177AC30 series Variable Speed DriveSystem Board OptionParameters::System Board::System Board OptionParameter Name No. Path Default Range Units WritableSystem Board Required 1739 Setup::Inputs and Outputs::System BoardOptionParameters::System Board::System BoardOption0:NONE1:DUAL ENCODERCONFIGIdentifies whether the system board is required by the configuration.System Board Fitted 1740 Parameters::System Board::SystemBoard OptionSame as PNO 1739 NEVERIndicates whether the system board is attached. The system board is a factory fit option.System Board Status 1741 Parameters::System Board::SystemBoard Option0:OK1:OPTION NOT FITTED2:TYPE MISMATCH3:TYPE UNKNOWN4:HARDWARE FAULTNEVERIndicates the health of the system board, if attached.Functional DescriptionThese parameters are used to set and verify the System Board Option configuration. If the status parameter is not OK then the drive will not enterthe Operational state.Status DescriptionOK The configuration is valid. The status will always be OK if no System Board option is required, even if one is fitted.OPTION NOT FITTED An option was required and none was detectedTYPE MISMATCH The fitted option does not support the required featuresTYPE UNKNOWN The firmware in the drive does not recognise the fitted optionHARDWARE FAULT The fitted option is not working as expected.