YASKAWA S-7 Series, Command Manual

Page: 143 / 191

5.7 Operation Sequence when a Safety Signal is Input
5-12
5.7 Operation Sequence when a Safety Signal is Input
When the HWBB1 or HWBB2 signal is input while the motor is operating, the power supply to
the motor is shut OFF forcibly and the motor stops according to the setting of the 1st digit of
parameter Pn001 (i.e., Pn001 = n.

X).
•
When an HWBB signal is input after the SERVOPACK stops powering the motor
•
When an HWBB signal is input while the SERVOPACK is powering the motor

When an HWBB Signal is Input
Monitor the HWBB input signal and SCM output signal status, or ESTP signal (HWBB) status in
the SVCMD_IO (servo command input signal) field. If a forced stop status is detected, send a
command such as SV_OFF to stop the motor.
BB s tatu s
(ba s eblocked)
RUN s tatu s
HWBB s tatu s
(hard wire ba s eblocked)
/HWBB1
/HWBB2
S VCMD_ S TAT.
S V_ON
RUN s tatu s
S ERVOPACK
s tatu s
ON
(The HWBB function i s not required.)
ON
(The HWBB function i s not required.)
OFF
(The HWBB function
i s required.)
1
0 1
Command
S VCMD_IO.
E S TP
1 0
0
Motion command,
etc. S V_ON
command
BB s tatu s
(ba s eblocked)
S V_OFF
command
S MON command, etc.
RUN s tatu s
RUN s tatu s
1 0 1
1 0 0
/HWBB1
/HWBB2
S ERVOPACK
s tatu s
S MON command, etc.
S V_ON
command
S VCMD_ S TAT.
S V_ON
S VCMD_IO.
E S TP
Command Motion command, etc.
HWBB s tatu s
(hard wire ba s eblocked)
BB s tatu s
(ba s eblocked)
ON
(The HWBB function i s not required.)
ON
(The HWBB function i s not required.)
OFF
(The HWBB function
i s required.)