YASKAWA SGD7S

5.13 Holding Brake
5.13.4 Output Timing of /BK (Brake) Signal When the Servomotor Is Operating
5-40
5.13.4 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 Command 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
• Linear Servomotors
The brake operates when either of the following conditions is satisfied:
• When the Motor Speed Goes below the Level Set in Pn507 for a Rotary Servomotor or in
Pn583 for a Linear Servomotor after the Power Supply to the Motor Is Stopped
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.
Important
Pn507
Brake Reference Output Speed Level
Setting Range Setting Unit Default Setting When Enabled Classification
0 to 10,000
1 min
-1
100 Immediately Setup
Pn508
Servo OFF-Brake Command Waiting Time
Setting Range Setting Unit Default Setting When Enabled Classification
10 to 100 10 ms 50 Immediately Setup
Pn583
Brake Reference Output Speed Level
Setting Range Setting Unit Default Setting When Enabled Classification
0 to 10,000 1 mm/s 10 Immediately Setup
Pn508
Servo OFF-Brake Command Waiting Time
Setting Range Setting Unit Default Setting When Enabled Classification
10 to 100 10 ms 50 Immediately Setup
Speed
Position
Torque
Speed
Position
Torque
Speed
Position
Force
Speed
Position
Force
y
y
Pn508
/S-ON input, alarm,
or power OFF
Motor speed
Motor power status
/BK signal
ON (Brake released.)
Power not supplied.
Power
supplied.
Motor stopped with dynamic
brake or by coasting
(Pn001 = n.X)
Linear Servomotor: Pn583
Rotary Servomotor: Pn507
OFFON
OFF (Brake applied.)