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Concept

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Products: MP-C
Functionalities: Hardware
Product version: 2.0, 2.1, 3.0, 3.1, 3.2, 3.3, 2022
3/18/2021

MP-C-18A Screw Terminals

MP-C-18A has 18 I/O points and the controller is equipped with seven pluggable terminal blocks and one fixed terminal block.

Recommended screw tightening torque: 0.56 Nm (5 lbf.in)

 
action_zoom_plus_stroke Screw terminals and other connectors, MP-C-18A

Screw terminals and other connectors, MP-C-18A

The terminal blocks are used as follows:

  • One 3-position pluggable terminal block for the power input

  • Two 3-position pluggable terminal blocks for the four triac outputs

  • One 6-position pluggable terminal block for the three relay outputs

  • One 2-position fixed terminal block for the high power relay output

  • Two 6-position plus one 3-position pluggable terminal blocks for the 10 universal inputs/outputs of type Ub

Table: Screw Terminals, MP-C-18A

Terminal number

Designation

Usage

Power input

1

24 VAC/DC

24 VAC, 50/60 Hz, 22 VA

Positive lead (+) when operating the device from 24-30 VDC, 12 W

2

 
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/ –

Earth ground lead of 24 VAC transformer connects to terminals 2 or 3.

Terminals 2 and 3 are internally connected.

Negative (–) lead when operating the device from 24-30 VDC, 12 W

3

 
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Terminal 3 is provided for convenience to connect to protective earth ground (optional).

Terminals 2 and 3 are internally connected.

Triac outputs

4

DO1

Triac output

5

COM1

Common connection for DO1 and DO2

The COM terminal can be connected to 24 VAC for high-side switching or to ground for low-side switching.

6

DO2

Triac output

7

DO3

Triac output

8

COM2

Common connection for DO3 and DO4

The COM terminal can be connected to 24 VAC for high-side switching or to ground for low-side switching.

9

DO4

Triac output

Relay outputs

10

DO5

Relay output, type Form A

11

DO5

Relay output, type Form A

12

DO6

Relay output, type Form A

13

DO6

Relay output, type Form A

14

DO7

Relay output, type Form A

15

DO7

Relay output, type Form A

High power relay outputs

16

DO8

High power relay output, type Form A

17

DO8

High power relay output, type Form A

Universal inputs/outputs

18

Ub1

Universal input/output, type Ub

19

RET

Internally connected to all earth ground and RET terminals

20

Ub2

Universal input/output, type Ub

21

Ub3

Universal input/output, type Ub

22

RET

Internally connected to all earth ground and RET terminals

23

Ub4

Universal input/output, type Ub

24

Ub5

Universal input/output, type Ub

25

RET

Internally connected to all earth ground and RET terminals

26

Ub6

Universal input/output, type Ub

27

Ub7

Universal input/output, type Ub

28

RET

Internally connected to all earth ground and RET terminals

29

Ub8

Universal input/output, type Ub

30

Ub9

Universal input/output, type Ub

31

RET

Internally connected to all earth ground and RET terminals

32

Ub10

Universal input/output, type Ub

See Also

  • MP-C Controllers
  • MP-C Screw Terminals
  • Wiring