Yaskawa MP920 Motion Module - Manual (Page 401)

9.4 Reverse Rotation Mode
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9
9.4.3 Incremental Encoder Setting
Set the following Rotation Direction Selection SERVOPACK Parameter when using an
incremental encoder with the SVA Module to set the Reverse Rotation Mode on the SER-
VOPACK and invert the rotation direction of the Servomotor.
Set these settings carefully. Improper settings will cause incorrect operation.
Setting the Rotation Direction Selection SERVOPACK Parameter
The SVA Module fixed parameter No. 4 (Rotation Direction Selection with an Absolute
Encoder) is only enabled when using an absolute encoder and does not have to be set when
using an incremental encoder.
Be sure to set the SERVOPACK Parameter Cn-0002 bit 0 ( Rotation Direction Selection) to 1 regard-
less of the type of encoder that is used to set the Reverse Rotation Mode on the SERVOPACK con-
nected to an SVB-01 Module and to reverse the Servomotor rotation direction.
Parameter Description Setting Meaning
SGDA,
SGDB
SGDM,
SGDS
Cn-02 bit 0 Pn000.0 Rotation Direc-
tion Selection 0 Counterclockwise when viewing the Ser-
vomotor from the load end is the forward
direction (standard setting).
1 Clockwise when viewing the Servomotor
from the load end is the forward direction
(Reverse Rotation Mode).
SGDB/SGDM/SGDS
CN1-42
CN1-43
Reverse direction Forward direction
SERVOPACK
Forward
direction
overtravel Reverse
direction
overtravel
Servomotor
IMPORTANT