Yaskawa Sigma Mini - Manual (Page 88)

APPLICATIONS
2.4.3 Holding Brake cont.
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ON Status:
Circuit between CN1-8 and CN1-3 is closed.
CN1-8 is at low level.
Releases the brake.
OFF Status:
Circuit between CN1-8 and CN1-3 is open.
CN1-8 is at high level.
Applies the brake.
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
Output Signal Ground
Common
For Speed/Torque
Control and
Position Control
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
If the machine moves slightly due to gravity when the brake is applied, set the following pa-
rameter to adjust brake ON timing:
Cn-12 BRKTIM
Time delay from the
time a brake signal is
output until servo OFF
status occurs
Unit:
10 ms
Setting
Range:
0 to 50
Factory
Setting:
0
For
Speed/Torque
Control and
Position Control
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.
2
/S-ON input
/BK output
Servo ON/OFF
operation
Motor ON/OFF
status
Release brake
Servo ON
Motor is ON
Apply brake.
Servo OFF
Motor is OFF.
BRKTIM