YASKAWA Sigma Mini SGMM Series User Manual page 89

APPLICATIONS
2.4.3 Holding Brake cont.
2
If the machine moves slightly due to gravity when the brake is applied, set the following pa-
rameter to adjust brake ON timing:
This parameter is used to set output timing of
brake control signal /BK and servo OFF opera-
tion (motor output stop) when a Servomotor
with brake is used.
With the standard setting, the servo is turned OFF when /BK signal (brake operation) is out-
put. The machine may move slightly due to gravitation. This movement depends on machine
configuration and brake characteristics. If this happens, use this parameter to delay servo
OFF timing to prevent the machine from moving.
Set in this constant the brake ON timing used when the motor is in stopped status.
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ON Status:
Circuit between CN1-8 and CN1-3 is closed.
CN1-8 is at low level.
OFF Status:
Circuit between CN1-8 and CN1-3 is open.
CN1-8 is at high level.
Related Parameters
Cn-12 Time delay from brake signal until servo OFF
Cn-15 Speed level for brake signal output during operation
Cn-16 Output timing of brake signal during motor operation
Output → SG-COM CN1-3
This is a signal ground for the output signals shown below. Connect this signal terminal to
0 V on the external power supply.
Contact Output Signals: /BK
/V-CMP (for speed/torque control only)
/COIN (for position control only)
/TGON
Brake ON Timing
Time delay from the
time a brake signal is
Cn-12 BRKTIM
output until servo OFF
status occurs
— 2-44 —
Releases the brake.
Applies the brake.
Output Signal Ground For Speed/Torque
Common Control and
Position Control
Unit: Setting Factory For
10 ms Range: Setting: Speed/Torque
0 to 50 0 Control and
Position Control
Servo ON
Servo OFF
/S-ON input
Release brake
Apply brake.
/BK output
Motor is ON
Servo ON/OFF
operation
Motor ON/OFF
status
BRKTIM
Motor is OFF.