Setting The Linear Encoder Pitch - YASKAWA SGD7S Product Manual

5.6 Setting the Linear Encoder Pitch

5.6

Setting the Linear Encoder Pitch

If you connect a linear encoder to the SERVOPACK through a Serial Converter Unit, you must
set the scale pitch of the linear encoder in Pn282.
If a Serial Converter Unit is not connected, you do not need to set Pn282.
Term
Pn282
You will not be able to control the Linear Servomotor if Pn282 is not set correctly. Check the
above table and always set the correct value before you operate the Linear Servomotor.
Type of Linear
Encoder
Incremental
The first time you supply power to the SERVOPACK, the panel display on the front of the Ser-
vomotor will display an A.080 alarm (Linear Encoder Pitch Setting Error). The A.080 alarm is
displayed because the setting of Pn282 has not been changed. The A.080 alarm will be cleared
when you change the setting of Pn282 and then turn the power supply OFF and ON again.
Information
5-16
Serial Converter Unit
The Serial Converter Unit converts the signal from the linear encoder into a form that can be read
by the SERVOPACK.
Scale Pitch
A linear encoder has a scale for measuring lengths (positions). The length of one division on this
scale is the scale pitch.
Linear Encoder Scale Pitch
Setting Range Setting Unit
0.01 μm
0 to 6,553,600
Manufacturer
Heidenhain
Corporation
Renishaw PLC
Linear Encoder Pitch
If you do not use a Serial Converter Unit, the linear encoder pitch is automatically set. It is not
necessary to set Pn282. You can use the SigmaWin+ to check the linear encoder pitch that
was automatically set. Refer to the following section for details.
9.1 Monitoring Product Information on page 9-2
Default Setting When Enabled
0
Model Serial Converter Unit Model

JZDP-H003-

LIDA48

JZDP-J003-

JZDP-H003-

LIF48

JZDP-J003-

JZDP-H005-
RGH22B

JZDP-J005-
Speed Position Force
Classification
After restart Setup
Linear Encoder
Pitch
[μm]
-E
20
-E
-E
4
-E
-E
20
-E