4.9 Safety Function
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(3) Procedure
4.9.4 Confirming Safety Functions
When starting the equipment or replacing the SERVOPACK for maintenance, be sure to conduct the following
confirmation test on the HWBB function after wiring.
• Confirm that the SERVOPACK enters a hard wire base block state and that the servomotor does not operate
when the /HWBB1 and /HWBB2 signals are OFF.
• 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.
• 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.
1
2
3
4
6
Request to open the guard.
Open the guard and enter.
The /HWBB1 and /HWBB2 signals are
OFF and HWBB function operates.
(The operation in the guard is available.)
5
After completing the operation, leave and
close the guard.
When the servomotor is operating, the host
controller stops the servomotor and sends
the servo OFF command (SV_OFF).
The host controller sends the servo ON com-
mand (SV_ON).
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