8 Operation8.8.2 Operation Example for the Hard Wire Base Block8-388.8.2 Operation Example for the Hard Wire Base BlockAn operation example of the HWBB function is shown below.If the /HWBB signal is received (OFF) while power is being supplied to the motor, power to the motor will beshut OFF and the Statusword (Object 6041h) will change to the Switch on Disabled state.[Operation when /HWBB Signal Is Received (OFF) during Motor Operation]8.8.3 HWBB Status MonitorThe status of HWBB function execution can be monitored using the following objects. Statusword (6041h)8.8.4 Restoring Operation from a HWBB StateRestoring operation from a HWBB state are as follows.(1) Conditions for Restoring OperationSatisfy all of the following conditions to return to normal operation.• The input states of all HWBB signals must be ON.• The servo ON command must be OFF.• If the SigmaWin for Σ-V-SD (MT) is connected, the Servo ON command from the SigmaWin for Σ-V-SD(MT) must not be active.(2) Procedure to Return to Normal Operation1. Specify a Shutdown command in the Controlword (Object 6040h bits 0 to 3) to reset the drive state.2. Specify a Switch on + Enable operation command in the Controlword (Object 6040h bits 0 to 3).Power will be supplied to the motor.8.8.5 Error Detection in HWBB SignalIf only the /HWBB1 or /HWBB2 signal is input, an A.Eb1 alarm (HWBB Function Signal Input Timing Error)will occur unless the other signal is input within 10 seconds. This makes it possible to detect failures, such asdisconnection of the HWBB signals.ON OFF/HWBB signalSERVOPACK stateControlword(6040h)Statusword(6041h)Digital inputs(60FDh bit 24, 25)10 0Enable operation ShutdownOperation enabled Switch onDisabled Ready to Switch on Operation enabledMotor power ON Motor power ONMotor power OFFSwitch on +Enable operationONBit State Display Contents15 HWBB active 0: –1: The HWBB function is operating.
