Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Mechatrolink-III Communication Reference - Manual (Page 157)

4.9 Safety Function
4-61
4
Ope
rat
ion
(2) Hard Wire Base Block (HWBB) State
The SERVOPACK will be in the following state if the HWBB function operates. If the /HWBB1 or /HWBB2
signal is OFF, the HWBB function will operate and the SERVOPACK will enter a hard wire baseblock
(HWBB) state.
/HWBB1
/HWBB2
M- III command
Servo command
status SV_ON
Servo command
status SV_ON
Motion
command, etc. SV_OFF
command
1 0
0 1
SMON
command, etc.
Servo command input
signal monitoring ESTP
SERVOPACK
state
ON
(Normal operation)
OFF
(Motor current shut-off
request.)
HWBB state BB state Operation
1 0
0 1
Motion
command, etc. SMON
command, etc.
/HWBB1
/HWBB2
M- III command
Servo command input
signal monitoring ESTP
SERVOPACK
state
ON
(Normal operation)
OFF
(Motor current shut-off request.)
HWBB state Operation
The HWBB function operates after the servomotor power is turned OFF.
The HWBB function operates while the servomotor power is ON.
M-III