5 Operation5.11.4 Confirming Safety Functions5-86(3) Usage Example5.11.4 Confirming Safety FunctionsWhen starting the equipment or replacing the SERVOPACK for maintenance, be sure to conduct the followingconfirmation test on the HWBB function after wiring.• When the /HWBB1 and /HWBB2 signals turn OFF, check that the panel operator or digital operator dis-plays "Hbb" and that the motor does not operate.• Check the ON/OFF states of the /HWBB1 and /HWBB2 signals with Un015.→ If the ON/OFF states of the signals do not coincide with the display, an error in the external device, dis-connection or short-circuiting of the external wiring, or a failure in the SERVOPACK must be considered.Find the cause and correct the problem. For details, refer to 8.7 Monitor Display at Power ON.• Check with the display of the feedback circuit input of the connected device to confirm that the EDM1 sig-nal is OFF while in normal operation.123467 Turn ON the servo from the host controller.Request to open the guard.When the motor is operating, output thestop command from the host controllerand turn OFF the servo.The guard opens.The /HWBB1 and /HWBB2 signals areOFF and HWBB function operates.(The operation in the guard is available.)5 After completing the operation, get out of theguard.The guard closes.
