Absolute Encoders; Connecting The Absolute Encoder - YASKAWA SGDV User Manual

5.9

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.
Parameter
n. 0
[Factory setting]
Pn002
n. 1
The SEN signal and battery are not required when using the absolute encoder as an incremental encoder.

5.9.1 Connecting the Absolute Encoder

The following diagram shows the connection between a servomotor with an absolute encoder, the SERVO-
PACK, and the host controller.
Absolute encoder
ENC
Battery
(Shell)
∗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.
∗3. If using an absolute encoder, allocate the SEN signal to one of the seven input signals.
Uses the absolute encoder as an absolute encoder.
Uses the absolute encoder as an incremental encoder.
SERVOPACK
Phase A
Phase B
∗1
CN2
Phase C
5
PS
6
/PS
SN75ALS174
output line driver or
the equivalent
1
PG5 V
2
PG0 V
3.3 k Ω
∗2
3
BAT (+)
∗2
4
BAT (-)
Connector Connector
shell shell
Meaning
Host controller
∗1
CN1
19 PAO
20
/PAO
R
21 PBO
22 /PBO
R
23 PCO
24 /PCO R
13
SG
0 V
14
+24 VIN
∗3
/SEN
Applicable line receiver: SN75ALS175
or MC3486 manufactured by Texas
Instruments or the equivalent
Terminating resistance R: 220 to 470 Ω

5.9 Absolute Encoders

When
Classification
Enabled
After restart Setup
Analog
Phase A
Phase B
Phase C
0 V
+24 V
5
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