YASKAWA Sigma-7 SGD7S Series - 6.12.4 Output Timing of;BK (Brake) Signal When the Servomotor Is Stopped

Parameter Connector Pin
No.
Meaning When
Ena-
bled
Clas-
sifica-
tion
+ Pin - Pin
Pn50F
n.0
− − The /BK signal is not used. After
restart
Setup
n.1
(default
setting)
CN1-1 CN1-2 The /BK signal is output
from CN1-1 and CN1-2.
n.2
CN1-2
3
CN1-2
4
The /BK signal is output
from CN1-23 and CN1-24.
n.3
CN1-2
5
CN1-2
6
The /BK signal is output
from CN1-25 and CN1-26.
If you allocate more than one signal to the same output connector pin, a
logical OR of the signals is output. Allocate the /BK signal to its own
output connector pin, i.e., do not use the same output terminal for another
signal.
For example, never allocate the /TGON (Rotation Detection) signal
and /BK signal to the same output connector pin. If you did so, the /
TGON signal would be turned ON by the falling speed on a vertical axis,
and the brake would not operate.
6.12.4 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
command (Disable Operation command) 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 (Disable Operation command) is input.
Brake Reference-Servo OFF Delay Time
Setting
Range
Setting Unit Default Set-
ting
When Ena-
bled
Classifica-
tion
Pn506 0 to 50 10 ms 0 Immediately Setup
(applies to Speed Control, Position Control and Torque Control)
n When the Servomotor is used to control a vertical 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.
n This parameter sets the timing of stopping power supply to the Servomotor while the
Servomotor is stopped.
Controlword (6040h)
Pn506
Disable
Operation
Enable
Operation
/BK signal
Motor power status
OFF (Brake applied.)
Power not
supplied.
Power supplied.
ON (Brake
released.)
Fig. 120: Brake Reference-Servo OFF Delay Time
Sigma-7 Series SERVOPACKs
Basic Functions That Require Setting before Operation
Holding Brake > Output Timing of /BK (Brake) Signal When the Servomotor Is Stopped
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