Yaskawa MP920 Motion Module - Manual (Page 386)

9 Application Precautions
9.1.3 SGDB SERVOPACK Connections
9-6
Cn-12 (Time Lag from Brake Reference to Servo OFF)
Use the following parameter if brake ON timing causes the machine to move slightly due to
gravity or other forces.
Set the brake control output signal /BK and servo OFF operation (Servomotor output stop)
timing when you use a Servomotor with brake.
This setting determines the timing for stopping the Servomotor. Set Cn-15 and Cn-16 for brake opera-
tion with the Servomotor running.
/BK output (brake operation) and the servo are turned OFF at the same time for the factory settings. In
this case, the machine may move slightly due to gravity depending on the machine configuration and
brake characteristics. This movement can be eliminated by delaying servo OFF operation.
Cn-15 and Cn-16
(Brake Output Speed Level and Timing during Motor Operation)
Use the following parameters to apply the holding brake when the Servomotor is stopped
during Servomotor operation.
Cn-12 Time Lag from Brake
Reference to Servo OFF Units:
10 ms Setting Range:
0 to 50 Factory Setting:
0 Speed/torque
control and po-
sition control
/S-ON input
(1CN-40)
/BK output
Servo ON/OFF
operation
(Servomotor ON)
Brake
released
Servo ON
Servomotor
ON
Brake holding
Servo OFF
Servomotor OFF
Servo OFF
lag time
Cn-12
INFO
Cn-15 Brake Output Speed
Level during Motor
Operation Units:
r/min Setting Range:
0 to max.
speed Factory Setting:
100 Speed/torque
control and po-
sition control
Cn-16 Brake Output Timing
during Motor Operation Units:
10 ms Setting Range:
0 to 100 Factory Setting:
50 Speed/torque
control and po-
sition control