5.11 Holding Brake
5.11.2 Allocating the /BK (Brake) Signal
5-32
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
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).
Allocating the /BK (Brake) Signal
The setting of the /BK signal can be changed with the parameters below.
Model
Voltage
Brake Release
Delay Time [ms]
Brake Operation
Delay Time [ms]
SGM7J-A5 to -04
24 VDC
60
100
SGM7J-06 and -08
80
SGM7A-A5 to -04
60
SGM7A-06 to -10
80
SGM7A-15 to -25
170
80
SGM7A-30 to -50
100
SGM7P-01
20
100
SGM7P-02 and -04
40
SGM7P-08 and -15
20
SGM7G-03 to -20
100
80
SGM7G-30 to -44
170
100
SGM7G-55 to -1A
80
SGM7G-1E
250
Type
Signal
Connector Pin No.
Signal Status
Meaning
Output
/BK
CN1-23, CN1-24
(default setting)
ON (closed)
Releases the brake.
OFF (open)
Activates the brake.
The /BK signal will remain ON during overtravel. The brake will not be applied.
Parameter
Meaning
When Enabled
PnB1D
0000h
(default setting)
When the /BK signal is ON (closed), the brake is released.
After restart
0001h
When the /BK signal is OFF (open), the brake is released.
PnB51
0
(default setting)
Does not output /ALO1 to /ALO3. (/WARN, /BK, and /S-RDY
are output.)
After restart
1
Outputs /ALO1 to /ALO3. (/WARN, /BK, and /S-RDY are not
output.)
Information