YASKAWA SGD7S Product Manual page 395

12.2 Origin Returns
12.2.2 Parameter Settings
Setting the Origin Return Direction
The following parameter sets the origin return direction.
If the origin signal input is active when an origin return starts (i.e., if the machine is near the ori-
gin), the machine will first move in the opposite direction from the specified origin return direc-
tion. Then, when the origin signal input becomes inactive, the machine will move in the origin
return direction and the origin return will be started.
PnB01
Setting the Origin Return Speeds
The following parameters set the speeds for origin returns.
The speed that is set for the Origin Return Approach Speed is used from the start of an origin
return until the origin signal input or phase C of the encoder is detected. The speed that is set
for the Origin Return Creep Speed is used from when the origin signal input or phase C of the
encoder is detected to position to the origin.
Refer to the following section for details.
13.3.3 Origin Returns on page 13-15
PnB03
PnB04
Final Travel Distance for Origin Return
The Final Travel Distance for Origin Return parameter sets the final origin position a certain dis-
tance away from the origin signal input or phase C of the encoder. For example, if reverse is the
origin return direction and the Final Travel Distance for Origin Returns parameter is set to 100,
the origin will be set to 100 reference units in the reverse direction from where the origin signal
input was detected.
PnB05
Origin Offset
If an absolute encoder is used, the offset from the origin of the encoder to the origin of the
machine must be recorded in the SERVOPACK.
PnB09
12-4
Parameter
   
b.
   
b.
Origin Approach Speed
Setting Range
1 to 115,343,500
Origin Return Creep Speed
Setting Range
1 to 115,343,500
Final Travel Distance for Origin Return
Setting Range
0 to 2,147,483,647
Origin Offset
Setting Range
-2,147,483,647 to
2,147,483,647
0 Origin returns are performed in the forward direction.
Origin returns are performed in the reverse direction.
1
(Default setting)
Setting Unit Default Setting
1 reference unit/s
Setting Unit Default Setting
1 reference unit/s
Setting Unit Default Setting
1 reference unit
Setting Unit Default Setting
1 reference unit
Meaning
When Enabled
20,000 Immediately
When Enabled
10,000 Immediately
When Enabled
0 Immediately
When Enabled
0 Immediately