Q4 Wiring

The Q4 Module can be wired to quadrature encoder signals. For best noise immunity and speed performance, Delta recommends using RS-422 encoders, with shielded twisted pairs for all connections to inputs and outputs. Route the transducer wiring separate from other wiring. You must provide the power supplies needed by your transducers.

See Wiring Guidelines for general wiring information.

Pin-Out

Terminal Block 1 (top)

Description		Pin			Description
Input 0 Z+	Z0+	1	2	A0+	Input 0 A+
Input 0 Z-	Z0-	3	4	A0-	Input 0 A-
Input 0 Home	Hm0	5	6	B0+	Input 0 B+
Encoder and Home Common	Cmn	7	8	B0-	Input 0 B-
Shield Connection	Case	9	10	Cmn	Encoder and Home Common
Input 1 Z+	Z1+	11	12	A1+	Input 1 A+
Input 1 Z-	Z1-	13	14	A1-	Input 1 A-
Input 1 Home	Hm1	15	16	B1+	Input 1 B+
Encoder and Home Common	Cmn	17	18	B1-	Input 1 B-
Shield Connection	Case	19	20	Cmn	Encoder and Home Common
Registration 0 Input	Reg0+	21	22	Reg1+	Registration 1 Input
Registration 0 Input	Reg0-	23	24	Reg1-	Registration 1 Input

All the Cmn pins in Terminal Blocks 1 and 2 are internally connected.

Terminal Block 2 (bottom)

Description		Pin			Description
Input 2 Z+	Z2+	1	2	A2+	Input 2 A+
Input 2 Z-	Z2-	3	4	A2-	Input 2 A-
Input 2 Home	Hm2	5	6	B2+	Input 2 B+
Encoder and Home Common	Cmn	7	8	B2-	Input 2 B-
Shield Connection	Case	9	10	Cmn	Encoder and Home Common
Input 3 Z+	Z3+	11	12	A3+	Input 3 A+
Input 3 Z-	Z3-	13	14	A3-	Input 3 A-
Input 3 Home	Hm3	15	16	B3+	Input 3 B+
Encoder and Home Common	Cmn	17	18	B3-	Input 3 B-
Shield Connection	Case	19	20	Cmn	Encoder and Home Common
Registration 2 Input	Reg2+	21	22	Reg3+	Registration 3 Input
Registration 2 Input	Reg2-	23	24	Reg3-	Registration 3 Input

All the Cmn pins in Terminal Blocks 1 and 2 are internally connected.

Differential Quadrature Wiring

Use this wiring diagram for encoders with the following outputs:

RS-422
5V Differential
Differential HTL (High Threshold Logic) for signals from 12V to 24 V
Push-pull with complements

Axis Parameters

For this wiring configuration, set the AB Input Type and Z Input Type axis parameters as follows:

Encoder Signal

AB Input Type or
Z Input Type

RS-422
5V Differential

Push-pull with complements, 5V

RS-422

Differential HTL, 12-24V

Push-pull with complements, 12-24V

Differential HTL

Diagram

Single-ended Quadrature Wiring (Not Recommended)

Delta does not recommend single-ended quadrature encoders due to poor noise immunity and a low maximum count frequency.

Use this wiring diagram for encoders with the following outputs:

TTL*
Push-pull without complements, 5-24V

*If these signals have complements, the complements are not used in this wiring configuration.

Axis Parameters

For this wiring configuration, set the AB Input Type, Z Input Type, and HTL Threshold axis parameters as follows:

Encoder Signal	AB Input Type or Z Input Type	HTL Threshold
TTL* Push-pull, 5V*	TTL	n/a
Push-pull without complements, 12V	Single-ended HTL	7V
Push-pull without complements, 24V	Single-ended HTL	12V

*Some encoders may not have adequate drive capability to support termination on the input. If termination is desired, termination can be enabled in software and A-, B-, or Z- need to be connected to Cmn.

Diagram

For single-ended connection, A-, B- and Z- must be connected to Cmn.

Home Input Wiring

Use this wiring diagram for the home inputs on the Q4 module. The home input supports 5-24V levels.

Axis Parameters

For this wiring configuration, set the H Input Type axis parameter as follows:

Home Signal	H Input Type
TTL	TTL
12-24V	DI

Diagram

Registration Input Wiring

Use this wiring diagram for the registration inputs on the Q4 module. The registration inputs are individually isolated and support 5-24V levels.

Axis Parameters

For this wiring configuration, set the R Input Type axis parameter as follows:

Home Signal	R Input Type
TTL	5V
12-24V	12-24V

Diagram