Connecting an incremental encoder with RS422 outputs to the TSX CCY 1128

Pinouts of the module’s 15-pin SUB D connector

The pinout configuration of the module’s 15-pin SUB D connector, for connection to an incremental encoder with RS 422 outputs, are as follows:

Pin No.	Signal	Designation
1	A+ 5V	Encoder input, pulse A+ (5VDC)
2	A-	Encoder input, pulse A-
3	-	-
4	Z+ 5V	Encoder input, zero latch pulse Z+ (5VDC)
5	Z-	Encoder input, zero latch pulse Z-
6	-	-
7	10…30 V	Encoder supply output (+ 10…30VDC)
8	0 V	Encoder supply output (- 0VDC)
9	-	-
10	B+	Encoder input, pulse B+ (5VDC)
11	B-	Encoder input, pulse B-
12	-	-
13	EPSR	Positive encoder supply feedback input. Receives positive supply feedback from the encoder, which allows the module to verify the encoder’s presence.
14	-	-
15	5 V	Encoder supply output (+ 5VDC)

Diagram showing the A, B and Z encoder inputs of the module

The diagram below shows an A, B or Z encoder input used with an incremental encoder equipped with:

NOTE: each A, B and Z input uses a differential line monitor.

Diagram of input A

Connection process diagram

The diagram below describes the process of connecting a TSX CCY 1128 module to an incremental encoder with RS 422 outputs and a 5VDC supply.

Recommendations

When connecting, adhere to the following recommendations:

Connect each signal encoder A+/A-, B+/B-, Z+/Z-, using a twisted pair.
Connect each supply point using a twisted pair, in order to reduce the on-line voltage falls.
Connect both terminals of the cable shielding to the protective ground.

CAUTION

ENCODER DAMAGE - PINOUT CONFIGURATION

Before connecting the encoder to the module, check the pinout configuration given by the encoder’s manufacturer.

Failure to follow these instructions can result in injury or equipment damage.