Bk (Brake) Signal - YASKAWA SGD7S-1R9D Product Manual

Model
SGM7J-02, -04
SGM7J-08, -15
SGM7A-02, -04
SGM7A-08, -10
SGM7A-15 to -25
SGM7A-30 to -50
SGM7G-05 to -20
SGM7G-30, -44
Linear Servomotors: The brake delay times depend on the brake that you use. Set the parameters related to
/BK signal output timing according to the delay times for the brake that you will actually use.
*2.
Before you output a reference from the host controller to the SERVOPACK, wait for at least 50 ms plus the time
required to release the brake after you send the Servo ON command (Enable Operation command).
*3.
Use the following parameters to set the timing of when the brake will operate and when the servo will be turned
OFF.
• Rotary Servomotors: Pn506 (Brake Reference-Servo OFF Delay Time), Pn507 (Brake Reference Output
Speed Level), and Pn508 (Servo OFF-Brake Reference Waiting Time)
• Linear Servomotors: Pn506 (Brake Reference-Servo OFF Delay Time), Pn508 (Servo OFF-Brake Reference
Waiting Time), and Pn583 (Brake Reference Output Speed Level)
Note: The brake operation delay time on SERVOPACKs with built-in Servomotor brake control is somewhat longer
than the time required on SERVOPACKs without built-in Servomotor brake control. Consider the brake oper-
ation delay time when you design the system.
Connection Examples
Refer to the following section for information on brake wiring.
4.4.4 Wiring the SERVOPACK to the Holding Brake on page 4-25
5.11.2

/BK (Brake) Signal

The following settings are for the output signal that controls the brake. You can change the
connector pin that is allocated. For details, refer to Allocating the /BK (Brake) Signal.
The /BK signal is turned OFF (to operate the brake) when the servo is turned OFF or when an
alarm is detected. You can adjust the timing of brake operation (i.e., the timing of turning OFF
the /BK signal) with the servo OFF delay time (Pn506).
Type
Output
The /BK signal will remain ON during overtravel. The brake will not be applied.
Information
Time Required to
Voltage
Release Brake [ms]
60
80
60
80
24 VDC
170
100
170
Signal Connector Pin No.
/BK CN1-1, CN1-2
Time Required to
Brake [ms]
100
80
100
Signal Status
ON (closed) Releases the brake.
OFF (open) Activates the brake.
5.11 Holding Brake
5.11.2 /BK (Brake) Signal
Meaning
5-33
5