Confirming Safety Functions - YASKAWA Σ-V Series User Manual

(3) Usage Example

4.7.4 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.
• When the /HWBB1 and/or /HWBB2 signals turn OFF, check that the digital operator displays "Hbb" and
that the linear servomotor does not operate.
• Check the ON/OFF states of the /HWBB1 and /HWBB2 signals with bits 0 and 1 of 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 Request to open the guard.
When the motor is operating, output the
2
stop command from the host controller. And
then turn OFF the servo after the motor stops.
3
Open the guard.
The /HWBB1 and /HWBB2 signals are
4
OFF and HWBB function operates.
(The operation in the guard is available.)
After completing the operation, get out of
5
the guard.
6
Close the guard.
Turn ON the servo from the host controller.
7
4.7 Safety Function
4
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