YASKAWA SGDS Sigma III Series, User Manual

Page: 222 / 376

7.6 Setting Stop Functions
7-31
• Related Parameters
The output signal in the following parameter must be selected when the /BK signal is used.
Select the /BK output terminal.
Note: Do not allocate multiple signals to the same output circuit. Signals are output with OR
logic when multiple signals are allocated to the same output circuit.
(2) Servo OFF Timing When Breaking
If a machine moves slightly because of its weight when the servo is turned OFF though the brake is applied, use
the brake reference - the servo OFF delay time (Pn506) to adjust the time between the brake reference and the
servo OFF action and the amount of movement.
This parameter is used to set the output time from the brake control output signal /BK until the servo OFF
operation (servomotor output stop) when a servomotor with a brake is used.
With the standard setting, the SERVOPACK changes to Servo OFF when the /BK signal (brake operation) is
output. The machine may move slightly due to gravity depending on machine configuration and brake
characteristics. If this happens, use this parameter to delay Servo OFF timing.
This setting sets the brake ON timing when the servomotor is stopped. Use Pn507 and Pn508 for brake ON
timing during operation.
The servomotor will turn OFF immediately if an alarm occurs. The machine may move due to gravity in the
time it takes for the brake to operate.
Pn506 Time Delay from Brake Reference until Servo OFF
Pn507 Speed Level for Brake Reference Output during Servomotor Operation
Pn508 Timing for Brake Reference Output during Servomotor Operation
Parameter Setting Output Terminal (CN1)
∗
1
∗
2
Pn50F.2
0
− −
1 25 26
2 27 28
3 29 30
/BK
Brake interlock
output
Input terminals
CN1-1, 2
CN1-23, 24
CN1-25, 26
1
2
3
0
Pn50F.2
Pn506 Brake Reference-Servo OFF Delay Time
Setting Range Setting Unit Factory Setting Setting Validation
0 to 50 10 ms 0 Immediately
Position
SV_ON
command
/BK output
Servo ON/OFF
operation
(Servomotor
ON/OFF status)
Release
brake
Servo ON
Servomotor
ON
Hold with brake
Servo OFF
Servomotor OFF
Servo OFF
time delay
IMPORTANT