5.11 Safety Function5-895 Operation(3) Procedure5.11.4 Confirming Safety FunctionsWhen starting the equipment or replacing the SERVOPACK or converter for maintenance, be sure to conductthe following confirmation 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 servomotor 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 or converter must beconsidered. 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.12346Request to open the guard.Open the guard and enter.The /HWBB1 and /HWBB2 signals areOFF and HWBB function operates.(The operation in the guard is available.)5 After completing the operation, leave andclose the guard.When the servomotor is operating, the hostcontroller stops the servomotor and turnsOFF the Servo ON signal (/S-ON).Turn ON the /S-ON signal from the host con-troller.
