Allocating The /Bk (Brake) Signal - YASKAWA E-7S SERVOPACK SGD7S Product Manual

5.11 Holding Brake

5.11.2 Allocating the /BK (Brake) Signal

SGM7J-A5 to -04
SGM7J-06 and -08
SGM7A-A5 to -04
SGM7A-06 to -10
SGM7A-15 to -25
SGM7A-30 to -50
SGM7P-01
SGM7P-02 and -04
SGM7P-08 and -15
SGM7G-03 to -20
SGM7G-30 to -44
SGM7G-55 to -1A
SGM7G-1E
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
brake release delay time after you send the SV_ON 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)
Connection Examples
Refer to the following section for information on brake wiring.
4.4.4 Wiring the SERVOPACK to the Holding Brake on page 4-33
5.11.2 Allocating the /BK (Brake) Signal
The following settings are for the output signal that controls the brake.
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
Information
Allocating the /BK (Brake) Signal
The setting of the /BK signal can be changed with the parameters below.
PnB1D
PnB51
5-32
Brake Release
Model Voltage
Delay Time [ms]
24 VDC
Signal Connector Pin No.
CN1-23, CN1-24
/BK
(default setting)
The /BK signal will remain ON during overtravel. The brake will not be applied.
Parameter
0000h
When the /BK signal is ON (closed), the brake is released.
(default setting)
0001h When the /BK signal is OFF (open), the brake is released.
0 Does not output /ALO1 to /ALO3. (/WARN, /BK, and /S-RDY
(default setting) are output.)
Outputs /ALO1 to /ALO3. (/WARN, /BK, and /S-RDY are not
1
output.)
Brake Operation
Delay Time [ms]
60
80
100
60
80
170
80
100
20
40 100
20
100 80
100
170
80
250
Signal Status
ON (closed)
OFF (open)
Meaning
Meaning
Releases the brake.
Activates the brake.
When Enabled
After restart
After restart