YASKAWA Sigma-7 SGD7S Series

Index Sub-
index
Name Data
Type
Access Data Ranges Default
Value
Saving to
EEPROM
607Ch 0 Home
Offset
DINT RW 80000000h to
7FFFFFFF
resp.
-2.147.483.648 to
2.147.483.647
0 Yes
If the encoder position (X) is at the origin (0), then home offset (607Ch) would be set to
the value of -X.
Example
Origin of machine
coordinate system
Encoder position (X)
Position actual value
(6064h)
Home offset
(607Ch (PnB46))
Encoder coordinate
Absolute encoder origin
Fig. 140: Absolute Encoder Origin Offset
6.17.2 Setting the Origin of the Absolute Linear Encoder
You can set any position as the origin in the following linear encoders.
n From Mitutoyo Corporation
ABS ST780A Series or ST1300 Series
Models: ABS ST78A/ST78AL/ST13
n Renishaw PLC
EVOLUTE Series
Models: EL36Y-
n Renishaw PLC
RESOLUTE Series
Models: RL36Y-
– After you set the origin, the /S-RDY (Servo Ready) signal will become
inactive because the system position data was changed. Always turn
the SERVOPACK power supply OFF and ON again.
– After you set the origin, the Servomotor phase data in the SERVO-
PACK will be discarded. If you are using a Linear Servomotor without
a Polarity Sensor, execute polarity detection again to save the Servo-
motor phase data in the SERVOPACK.
The following conditions must be met to set the origin of the absolute linear encoder.
n The parameters must not be write prohibited.
n The servo must be OFF.
The following table lists the tools that you can use to set the origin of the absolute linear
encoder and the applicable tool functions.
Preparations
Applicable Tools
Sigma-7 Series SERVOPACKs
Basic Functions That Require Setting before Operation
Setting the Origin of the Absolute Encoder > Setting the Origin of the Absolute Linear Encoder
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