YASKAWA E-V Series User Manual page 97

(5) Servo Ready Signal
When the SBB function is operating, the Servo Ready Signal turns OFF (i.e., the servo cannot be turned ON)
during operation of the SBB function. After returning from the HWBB state, the Servo Ready Signal turns ON
(i.e., the servo can be turned ON).
(6) Brake Sequence
When the SBB function is operating, the SERVOPACK parameter Pn506 (Brake Reference-Servo OFF Delay
Time) is disabled, and the SERVOPACK changes to the HWBB state.
(7) Relationship with MECHATROLINK-II Commands
If the SERVOPACK changes to the HWBB state during the execution of any of the following MECHATRO-
LINK-II commands, a command warning will occur. If a warning occurs, reset the alarm and then return to
normal operation.
MECHATROLINK-II Commands Related to the SBB Function
Command
SV_ON
INTERPOLATE
POSING
FEED
LATCH
EX_POSING
ZRET
Operation Timing
SERVOPACK state Operating
S-RDY signal ON
Operation Timing
SBB function
Servo ON command ON
Brake signal
OFF
SERVOPACK state
Operating
Servo ON
Interpolation
Positioning
Constant-speed Feeding
Interpolation with Position Detection
External Input Positioning
Homing
6.3 Safe BaseBlock Function (SBB Function)
HWBB state Operating
OFF ON
Operating
ON
Pn506 (disabled)
HWBB state
Function Name
6-15