YASKAWA UAK series User Manual page 172

(3) Brake ON Timing after the Servomotor Stops
When the servomotor stops, the /BK signals turn OFF at the same time as the Disable operation command is
received. Use Pn506 to change the timing to turn OFF the servomotor power after the Disable operation com-
mand has been received.
Brake Reference-Servo OFF Delay Time
Pn506
Setting Range
(2112h:1)
0 to 50
• 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.
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 during the time until the brake operates.
Setting Unit Factory Setting
10 ms 0
Disable operation
command
/BK output
Power to motor
8.4 Settings for Common Basic Functions
Torque
Speed Position
When Enabled
Immediately
Servo ON Servo OFF
Brake applied
Brake released
(OFF)
(ON)
Power to motor
Pn506
Classification
Setup
No power to motor
8
8-15