PMAC2A PC104 Hardware Reference Manual

J4 (JMACH2): Machine Port Baseboard Connector

(34-Pin Header)

Front View

Pin#

Symbol

Function

Description

Notes

1

FLG_1_2_V

Input

Flags 1-2 Pull-Up

 

2

FLG_3_4_V

Input

Flags 3-4 Pull-Up

 

3

GND

Common

Digital Common

 

4

GND

Common

Digital Common

 

5

HOME1

Input

Home-Flag 1

10

6

HOME2

Input

Home-Flag 2

10

7

PLIM1

Input

Positive End Limit 1

8,9

8

PLIM2

Input

Positive End Limit 2

8,9

9

MLIM1

Input

Negative End Limit 1

8,9

10

MLIM2

Input

Negative End Limit 2

8,9

11

USER1

Input

User Flag 1

 

12

USER2

Input

User Flag 2

 

13

PUL_1

Output

Pulse Output 1

 

14

PUL_2

Output

Pulse Output 2

 

15

DIR_1

Output

Direction Output 1

 

16

DIR_2

Output

Direction Output 2

 

17

EQU1

Output

Encoder Comp-Equal 1

 

18

EQU2

Output

Encoder Comp-Equal 2

 

19

HOME3

Input

Home-Flag 3

10

20

HOME4

Input

Home-Flag 4

10

21

PLIM3

Input

Positive End Limit 3

8,9

22

PLIM4

Input

Positive End Limit 4

8,9

23

MLIM3

Input

Negative End Limit 3

8,9

24

MLIM4

Input

Negative End Limit 4

8,9

25

USER1

Input

User Flag 1

 

26

USER2

Input

User Flag 2

 

27

PUL_3

Output

Pulse Output 3

 

28

PUL_4

Output

Pulse Output 4

 

29

DIR_3

Output

Direction Output 3

 

30

DIR_4

Output

Direction Output 4

 

31

EQU3

Output

Encoder Comp-Equal 3

 

32

EQU4

Output

Encoder Comp-Equal 4

 

33

B_WDO

Output

Watchdog Out

Indicator/driver

34

No Connect

 

 

 

Note 1: Pins marked PLIMn should be connected to switches at the positive end of travel. Pins marked MLIMn should be connected to switches at the negative end of travel.

Note 2: Must be conducting to 0V (usually GND) for PMAC to consider itself not into this limit. Automatic limit function can be disabled with Ix25.

Note 3: Functional polarity for homing or other trigger use of HOMEn controlled by Encoder/Flag Variable I9n2. HMFLn selected for trigger by Encoder/Flag Variable I9n3. Must be conducting to 0V (usually GND) to produce a 0 in PMAC software.

52

Base Board Connector Pinouts

Page 58
Image 58
Delta Tau PMAC2A-PC/104 manual J4 JMACH2 Machine Port Baseboard Connector