Yaskawa Σ-V Series AC Servo Drives Rotational Motor MECHATROLINK-III - Manual (Page 78)

4.3 Basic Functions Settings
4-13
4
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(4) Brake ON Timing after the Servomotor Stops
When the servomotor stops, the /BK signal turns OFF at the same time as the SV_OFF command is received.
Use parameter Pn506 to change the timing to turn OFF the servomotor power after the SV_OFF command has
been received.
Pn506
Brake Reference-Servo OFF Delay Time
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 50 10 ms 0 Immediately Setup
Speed Position Torque
• When using the servomotor to control a vertical
axis, the machine movable part may shift slightly
depending on the brake ON timing due to gravity or
an external force. To eliminate this slight shift, set
parameter so that the power to the servomotor turns
OFF after the brake is applied.
• This parameter changes the brake ON timing while
the servomotor is stopped.
SV_OFF
command
/BK output
Power to motor
Brake released
(ON)
Servo ON
Power to motor
Brake applied
(OFF)
Servo OFF
No power to motor
Pn506
MECHA
The servomotor will turn OFF immediately when an alarm occurs, regardless of the set-
ting of this parameter. The machine movable part may shift due to gravity or external
force before the brake operates.