YASKAWA MECHATROLINK Sigma 2 Series User Manual page 158

Brake Operation
Set whether the brake is applied using the SERVOPACK parameter brake command or the
controller's BRK_ON/BRK_OFF commands.
Pn005.0
Pn005.0 Setting
When brake operation is controlled using the controller's BRK_ON/BRK_OFF commands, the
IMPORTANT
SERVOPACK's parameters (Pn506, Pn507, Pn508) settings will be ignored.
Brake ON Timing
If the machine moves slightly due to gravity when the brake is applied, set the following
parameter to adjust brake ON timing.
Pn506
This parameter is used to set the output time from the brake control output signal /BK until
the servo OFF operation (servomotor output stop) when a servomotor with a brake is used.
SV_ON
command
/BK output
Servo ON/OFF
operation
(Servomotor
ON/OFF status)
With the standard setting, the SERVOPACK changes to Servo OFF when the /BK signal
(brake operation) is output. The machine may move slightly due to gravity depending on
machine configuration and brake characteristics. If this happens, use this parameter to delay
Servo OFF timing.
This setting sets the brake ON timing when the servomotor is stopped. Use Pn507 and
Pn508 for brake ON timing during operation.
The servomotor will turn OFF immediately if an alarm occurs. The machine may move due to gravity
IMPORTANT
in the time it takes for the brake to operate.
Brake Operation
0
Brake operation using the SERVOPACK parameter.
1
Brake operation using the controller's BRK_ON/BRK_OFF commands.
Brake Reference Servo Unit:
OFF Delay Time
ms
Servo ON
Servo OFF
Release
brake
Hold with brake
Servomotor
ON
Servo OFF
time delay
6-41
6.5 Setting Stop Functions
Factory
Setting:
0
Description
Setting Factory
Range: Setting:
10
0 to 50 0
Servomotor OFF
Position Control
Position Control
6