Generic adaptor PCB

The Generic Adaptor PCB can be used to provide a quick and easy method of connection when performing a CMM retrofit with Renishaw's range of UCC controllers.

This PCB can be used when replacing any controller type as the CMM cables connect to screw terminals connectors.

The PCB supports the signals of up to 3 axes with the option of supporting analogue readheads with a plug-in interpolator PCB.

It is recommended that crimp ferrules are used to improve the reliability of the wire connection.

All interconnecting cables to the controller/SPA are provided.

Retrofit Generic Adaptor PCB

1. Readhead Input

Table below shows the pin connections for standard RS422 and analogue read heads, unused inputs can be disabled via the disable switches as detailed on the readhead switch settings page.

Pin Number

Digital Readhead

Analogue Readhead

1

0V supply

0V supply

2

0V sensing

0V sensing

3

+5V supply

+5V supply

4

+5V sensing

+5V sensing

5

-Readhead error

V Ref

6

-Reference mark

-Reference mark

7

+Reference mark*

+Reference mark*

8

Limit switch Q**

Limit switch Q

9

-B signal

-Cos

10

+B signal

+Cos*

11

Limit switch P

Limit switch P

12

-A signal

-Sin

13

+A signal

+Sin*

14

Inner screen

Inner screen

15

Screen

Screen

Mating Part

P-CA79-0008

P-CA79-0008

* Connect single ended analogue signals to positive inputs only.

**Renishaw controllers capable of supporting both single and dual limit-switch RG22 readheads. The electronic circuits can interface either type without any intervention but the correct type must be set in the machine "ini" file.  If dual limit types are fitted pin 11 functions as the second limit switch.  If single types are fitted then pin 8 becomes the +Error signal.

2. CMM I/O Pinout

Table below shows the CMM I/O pinouts.  The machine I/O can be configured using the disable switches detailed in the Generic I/O switch settings page.

Multiple +24V and 0V connections are provided for easy wiring

 Note: Series wired limit switches should be connected to the Crash input on the CMM I/O connector.

Pin Number

Description

1

+24V DC

2

Z brake

3

Z brake release button

4

CMM declutch

5

0V supply

6

+24V DC

7

Energise air solenoid

8

Crash switch

9

0V supply

10

+24V DC

11

Output 0

12

Input 0

13

0V supply

14

Low air

15

0V supply

16

Screen

Mating Part

P-CN01-0014

3. Limit Switch Inputs

The table below details the connections for limit switches.  Individual limit switches are to be configured using the disable switches detailed in the Generic I/O switch settings page. 

Note: Series wired limit switches should be connected to the Crash input on the CMM I/O connector.

Pin Number

Description

1

+24V DC

2

+24V  DC

3

+X Inner limit

4

-X Inner limit

5

0V supply

6

+24V DC

7

+Y Inner limit

8

-Y Inner limit

9

0V supply

10

+24V DC

11

+Z Inner limit

12

-Z Inner limit

13

0V supply

14

+24V DC

15

Screen

16

Screen

Mating part

P-CN01-0014

4. Emergency Stop Switch

The external emergency stop switch pinout is shown below.

Pin Number

Description

1

E-stop A

2

E-stop B

3

Screen

Mating part

P-CN25-0008

 

Note: If no external e-stop switch is used pins 1 and 2 must be connected together

5. Motor Encoder Inputs

RS422 digital motor encoders can be connected as  detailed in the table below.

Pin Number

Description

1

0V supply

2

-Reference mark

3

-B signal

4

-A signal

5

+5V supply

6

+Reference mark

7

+ B signal

8

+ A signal

9

Inner screen

10

Screen

Mating part

P-CN25-1053

6. DC Motor Connection

The Renishaw retrofit standard DC motor connections as shown in the table below.

Pin Number

Description

1

+ve Motor connection

2

Reserved

3

-ve Motor connection

4

Motor screen

5

+ve Tacho input

6

-ve Tacho input

7

Tacho screen

Mating part

P-CN24-0046