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5.13 Holding Brake
5.13.2 /BK (Brake) Signal
5-37
5
Ba
s
ic Function
s
That Requir
e
S
etting befor
e Operation
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 turn ON the /S-ON signal.
*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
5.13.2
/BK (Brake) Signal
The following settings are for the output signal that controls the brake. The /BK (Brake) signal is
not allocated by default. To use the brake, change the setting of Pn50F = n.
X
(/BK (Brake
Output) Signal Allocation).
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
To use the brake, you must allocate an output signal for the /BK signal.
Set the allocation for the /BK signal in Pn50F = n.
X
(/BK (Brake Output) Signal Alloca-
tion).
Model
Voltage
Time Required to
Release Brake [ms]
Time Required to
Brake [ms]
SGM7J-A5 to 04
24 VDC
60
100
SGM7J-06 to 10
80
SGM7G-03 to 20
100
80
SGM7A-15
170
Type
Signal
Connector Pin No.
Signal Status
Meaning
Output
/BK
Must be allocated.
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
Connector Pin No.
Meaning
When
Enabled
Classification
+ Pin
- Pin
Pn50F
n.
0
(default set-
ting)
−
−
The /BK signal is not used.
After restart
Setup
n.
1
CN1-25
CN1-26
The /BK signal is output from
CN1-25 and CN1-26.
n.
2
CN1-27
CN1-28
The /BK signal is output from
CN1-27 and CN1-28.
n.
3
CN1-29
CN1-30
The /BK signal is output from
CN1-29 and CN1-30.
Information