Output Timing Of /Bk (Brake) Signal When The Servomotor Is Stopped; Output Timing Of /Bk (Brake) Signal When The Servomotor Is Operating - YASKAWA SGD7S-1R9D Product Manual

5.11 Holding Brake

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

Allocating the /BK (Brake) Signal
Set the allocation for the /BK signal in Pn50F = n.X (/BK (Brake Output) Signal Alloca-
tion).
Parameter
Pn50F
(250F
hex)
Important
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 (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 (Dis-
able Operation command) is input.
Pn506
(2506
hex)
*
The default setting is 32 for a SERVOPACK with built-in Servomotor brake control.
• 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
5-34
Connector Pin No.
+ Pin
−
 
n. 0
 
n. 1
(default set- CN1-1 CN1-2
ting)
 
n. 2 CN1-23 CN1-24
 
n. 3 CN1-25 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 out-
put 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.
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.
Meaning
- Pin
−
The /BK signal is not used.
The /BK signal is output from
CN1-1 and CN1-2.
The /BK signal is output from
CN1-23 and CN1-24.
The /BK signal is output from
CN1-25 and CN1-26.
Default Setting
10 ms 0*
Controlword (6040 hex)
Motor power status
When
Enabled
After restart
Speed Position
When Enabled
Immediately
Disable
Operation
ON (Brake
/BK signal released.)
Power supplied
to motor.
Classification
Setup
Torque
Classification
Setup
Enable
Operation
OFF (Brake applied.)
Power not
supplied to
motor.
Pn506