YASKAWA SGMJV User Manual page 116

There is a delay in the braking operation. Set the following ON/OFF timing.
OFF
SERVOPACK control
power
OFF
SERVOPACK main
power
OFF
Servomotor power
OFF
Brake signal (/BK)
Brake contact part
(lining)
0V
Speed reference
Motor speed
∗1. The servomotor power is turned ON and the brake signal (/BK) is output at the same time.
∗2. The operation delay time of the brake depends on the model. For details, refer to Brake Operation Delay Time shown
below.
∗3. Allow a period of 200 ms before the speed reference is input after the brake power supply is turned ON.
∗4. The servomotor stop time is shown by t
) × N
(J + J 2π
×
t = M L M
d
(T + T ) 60
P L
J : Rotor moment of inertia (kg m
M
N : Motor rotational speed (min
M
T : Load torque (N m)
L
∗5. Always turn OFF the brake power supply after the servomotor comes to a stop. Usually, set t
∗6. Use Pn506, Pn507, and Pn508 to set the timing of when the brake will be activated and when the servomotor power
will be turned OFF.
Model
SGMJV-A5 to 04
SGMJV-08
SGMAV-A5 to 04
SGMAV-06 to 10
SGMPS-01, 08, 15
SGMPS-02, 04
SGMGV-03 to 20
SGMGV-30, 44
SGMGV-55, 75, 1A
SGMGV-1E
SGMSV-10 to 25
SGMSV-30 to 50
Note: The above operation delay time is an example when the power supply is turned ON and OFF on the DC side.
Be sure to evaluate the above times on the actual equipment before using the application.
ON
ON
*1
ON
ON
Brake release
*2
*5
*3
200 ms or more
. Use the following formula for the calculation of t
d
(sec)
2
) J : Load moment of inertia (kg m
L
-1
) T : Motor deceleration torque (N m)
P
Brake Operation Delay Time
Voltage Brake Release Time (ms)
24 VDC
24 VDC,
90 VDC
5.2 Setting Common Basic Functions
*2
*6
200 ms to 1.0 second
*4
t 1
t d
t d +t 1
2
)
Brake Applied Time (ms)
60
80
60
80
20
40
100
170 100 (24 VDC), 80 (90 VDC)
170
250
170
100
.
d
+t to 1 or 2 seconds.
d 1
100
100
100
100
100
100
80
80
80
80
80
5-9
5