YASKAWA Sigma-V Series User Manual page 151

4 Operation
4.8.1 Hard Wire Base Block (HWBB) Function
If the HWBB function is requested by turning OFF the /HWBB1 and /HWBB2 input signals on the two chan-
nels, the power supply to the servomotor will be turned OFF within 20 ms (see below).
/HWBB1
/HWBB2
SERVOPACK
State
Note 1. The OFF status is not recognized if the total OFF time of the /HWBB1 and /HWBB2 signals is 0.5 ms or shorter.
2. The status of the input signals can be checked using monitor displays. Refer to 7.5 Monitoring Safety Input Sig-
(7) Operation with Utility Functions
The HWBB function works while the SERVOPACK operates in the utility function.
If any of the following utility functions is being used with the /HWBB1 and /HWBB2 signals turned OFF, the
SERVOPACK cannot be operated by turning ON the /HWBB1 and /HWBB2 signals. Cancel the utility func-
tion first, and then set the SERVOPACK to the utility function again and restart operation.
• JOG operation (Fn002)
• Origin search (Fn003)
• Program JOG operation (Fn004)
• Advanced autotuning (Fn201)
• EasyFFT (Fn206)
• Automatic offset-signal adjustment of motor current detection signal (Fn00E)
(8) Servo Ready Output (/S-RDY)
The servo ON (SV_ON: 31H) command will not be accepted in the HWBB state. Therefore, the servo ready
output will turn OFF. The servo ready output will turn ON if the servomotor power is OFF (set to BB state)
when both the /HWBB1 and /HWBB2 signals are ON.
The following diagram shows an example where the main circuit power supply is turned ON, the Turn
Encoder Power Supply ON (SENS_ON) command is sent (with an absolute encoder), and no servo alarm
occurs.
/HWBB1
/HWBB2
Servomotor
Power
SERVOPACK
State
/S-RDY
4-60
When using the HWBB function, always use a 24-VDC power supply for the DC power.
Within 20 ms
ON
(Normal operation)
Normal operation
nals.
ON
(Motor current
shut-off request)
(Normal
operation)
ON
HWBB state
Operating
OFF
ON
OFF (Motor current
shut-off request)
HWBB state
OFF
ON
(Normal operation)
MECHA
OFF
BB state
ON