Beckhoff EL7037 User Manual download pdf (Page 50)

Installation

Terminal points

Terminal

point

Name Signal

1 A Encoder input A

2 C

Encoder input C (zero input). If object 7000:01 [}186] is set in

the control word and a rising edge occurs at encoder input C,

the current counter value is stored as a reference mark in the

latch register.

3 Encoder supply

+24V

Encoder supply + 24 V, internally connected with positive

power contact and pin 6, 7

4 A1 Motor winding A1

5 B1 Motor winding B1

6 +24V +24 V

, internally connected with positive power contact and

pin 3, 7

7 +24V +24 V

, internally connected with positive power contact and

pin 3, 7

8 Input 1 Digital input 1 (24 V

)

9 B Encoder input B

10 Latch Latch input. The current counter value is stored as a

reference mark in the latch register, if

• object 7000:02 [}186] is set and a rising edge occurs at

the latch input; or

• object 7000:04 [}186] is set and a falling edge occurs

at the latch input.

11 Encoder supply

Encoder supply 0 V, internally connected with negative power

contact and pin 14, 15

12 A2 Motor winding A2

13 B2 Motor winding B2

14 0V 0 V

, internally connected with negative power contact and

pin 11, 15

15 0V 0 V

, internally connected with negative power contact and

pin 11, 14

16 Input 2 Digital input 2 (24 V

), also configurable as a digital output

(0,5 A)

4.6.2 EL7037 - General connection examples

WARNING

Risk of injury through electric shock and damage to the device!

Bring the Bus Terminal system into a safe, de-energized state before starting mounting,

disassembly or wiring of the Bus Terminals.

Attention

Connect the motor strands correctly!

Connect the windings of a motor strand only to the terminal points of the same output driver

of the stepper motor terminal, e.g.:

• one motor strand to terminal points A1 and A2,

• the other motor strand to terminal points B1 and B2.

Connecting a motor strand to the terminal points of different output drivers (e.g. to A1 and

B1) can lead to destruction of the output drivers of stepper motor terminal!

EL70x750 Version 1.0

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Beckhoff EL7037 User Manual Page 50

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