Output Timing Of /Bk (Brake) Signal When The Servomotor Is Stopped; Output Timing Of /Bk (Brake) Signal When The Servomotor Is Operating - YASKAWA SGD7S Product Manual

5.11 Holding Brake

5.11.3 Output Timing of /BK (Brake) Signal When the Servomotor Is Stopped

5.11.3 Output Timing of /BK (Brake) Signal When the
Servomotor Is Stopped
When the Servomotor is stopped, the /BK signal turns OFF as soon as the Servo OFF com-
mand (Enable = 0) is received. Use the servo OFF delay time (Pn506) to change the timing to
turn OFF power supply to the motor after the Servo OFF command is input.
Pn506
• When the Servomotor is used to control a verti-
cal axis, the machine moving part may move
slightly due to gravity or an external force.
You can eliminate this slight motion by setting
the servo OFF delay time (Pn506) so that
power supply to the motor is stopped after the
brake is applied.
• This parameter sets the timing of stopping
power supply to the Servomotor while the Ser-
vomotor is stopped.
Important
5.11.4 Output Timing of /BK (Brake) Signal When the
Servomotor Is Operating
If an alarm occurs while the Servomotor is operating, the Servomotor will start stopping and the
/BK signal will be turned OFF. You can adjust the timing of /BK signal output by setting the
brake reference output speed level (Rotary Servomotors: Pn507, Linear Servomotors: Pn583)
and the servo OFF-brake reference waiting time (Pn508).
Note: If zero-speed stopping is set as the stopping method for alarms, the setting of Pn506 (Brake Reference-
Servo OFF Delay Time) is used after the motor stops.
• Rotary Servomotors
Pn507
Pn508
• Linear Servomotors
Pn583
Pn508
5-32
Brake Reference-Servo OFF Delay Time
Setting Range Setting Unit
0 to 50
Power supply to the Servomotor will be stopped immediately when an alarm occurs, regardless
of the setting of this parameter. The machine moving part may move due to gravity or an external
force before the brake is applied.
Brake Reference Output Speed Level
Setting Range Setting Unit
0 to 10,000
Servo OFF-Brake Reference Waiting Time
Setting Range Setting Unit
10 to 100
Brake Reference Output Speed Level
Setting Range Setting Unit
0 to 10,000
Servo OFF-Brake Reference Waiting Time
Setting Range Setting Unit
10 to 100
Default Setting
10 ms 0
Servo OFF command
Default Setting
-1
100
1 min
Default Setting
10 ms 50
Default Setting
1 mm/s 10
Default Setting
10 ms 50
When Enabled
Immediately
1
(servo ON)
(Enable)
ON (Brake
/BK signal released.)
OFF (Brake applied.)
Motor power
Power
status
supplied.
Pn506
When Enabled
Immediately
When Enabled
Immediately
When Enabled
Immediately
When Enabled
Immediately
Classification
Setup
0
(servo OFF)
Power not
supplied.
Classification
Setup
Classification
Setup
Classification
Setup
Classification
Setup