Yaskawa Sigma II Series DC Power Input SGMAJ - Manual (Page 196)

8.3 Setting Common Basic Functions
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(2) Brake Interlock Output
(3) Allocating Brake Signals (/BK)
The brake signal (/BK) is not used with the factory settings. The output signal must be allocated.
(4) Setting the Brake ON Timing after the Servomotor Stops
With the factory setting, the /BK signal is output at the same time as the servo is turned OFF. The servo OFF tim-
ing can be changed with a parameter.
Type Name Connector Pin
Number
Setting Meaning
Output /BK Must be allocated ON (low level) Releases the brake.
OFF (high level) Applies the brake.
This output signal controls the brake and is used only for a servomotor with a brake. This output signal is not used with the
factory settings. The output signal must be allocated (with Pn50F). It does not need to be connected for servomotors with-
out a brake.
„ IMPORTANT
The /BK signal is not output during overtravel, or when there is no power to the servomotor.
Parameter Connector Pin Number Meaning
+ Terminal - Terminal
Pn50F n.†0†† − − The /BK signal is not used. (Factory setting)
n.†1†† CN1-8 CN1-10 The /BK signal is output from output terminal CN1-8, 10.
n.†2†† CN1-9 CN1-10 The /BK signal is output from output terminal CN1-9, 10.
n.†3†† CN1-7 CN1-10 The /BK signal is output from output terminal CN1-7, 10.
„ IMPORTANT
When set to the factory setting, the brake signal is invalid. When multiple signals are allocated to the same output termi-
nal, the signals are output with OR logic. To output the /BK signal alone, disable the other output signals or set them to
output terminals other than the one allocated to the /BK signal. For the allocation of SERVOPACK output signals other
than /BK signal, refer to 7.3.3 Output Circuit Signal Allocation.
Pn506 Delay Time from Brake Reference Until Servo OFF
Setting Range Setting Unit Factory Setting Setting Validation
0 to 50
(0 to 500 ms)
10 ms 0 Immediately
• When using the servomotor to control a vertical axis, the
machine movable part may shift slightly depending on the brake
ON timing due to gravity or an external force. By using this
parameter to delay turning the servo OFF, this slight shift can be
eliminated.
• This parameter changes the brake ON timing while the servomo-
tor is stopped.
For details on brake operation while the servomotor is operating,
refer to 8.3.4 (5) Setting the Brake ON Timing When Servomotor
Running in this section.
„ IMPORTANT
The servomotor will turn OFF immediately when an alarm occurs, regardless of the setting of this parameter.
The machine movable part may shift due to gravity or external force during the time until the brake operates.
Speed Position Torque
/S-ON
(CN1-14)
/BK output
Power to motor
Brake released
Servo ON
Power to motor
Brake held
Servo OFF
No power to motor
Pn506