Yaskawa Σ-V Series AC Servo Drives Rotational Motor MECHATROLINK-III - Manual (Page 93)

4 Operation
4.7.1 Connecting the Absolute Encoder
4-28
4.7
Absolute Encoders
If using an absolute encoder, a system to detect the absolute position can be designed for use with the host
controller. As a result, an operation can be performed without a zero point return operation immediately after
the power is turned ON.
A battery case is required to save position data in the absolute encoder.
The battery is attached to the battery case of the encoder cable.
Set Pn002.2 to 0 (factory setting) to use the absolute encoder.
The SEN signal and battery are not required when using the absolute encoder as an incremental encoder.
4.7.1 Connecting the Absolute Encoder
The following diagram shows the connection between a servomotor with an absolute encoder, the SERVO-
PACK, and the host controller.
∗1. : represents shielded twisted-pair wires.
∗2. When using an absolute encoder, provide power by installing an encoder cable with a JUSP-BA01-E Battery Case or
install a battery on the host controller.
Parameter Meaning
When
Enabled
Classification
Pn002
n. 0
[Factory setting]
Uses the absolute encoder as an absolute encoder.
After restart Setup
n. 1 Uses the absolute encoder as an incremental encoder.
ENC
3
4
CN2
∗
1
5
6
1
2 PG5 V
PG0 V
PS
/PS
BAT (+)
BAT (-)
∗ 2
∗ 2
Absolute encoder
SERVOPACK
(Shell)
Battery
SN75ALS174
output line driver or
the equivalent
Connector
shell
MEC
HA