UM/MC3

6

Connections

Internal Connection

Wiring of Inputs and Outputs

Changing the Reset Mode

You can select either the Auto Reset Mode or the Manual Reset Mode with the MC3 Controller.

Remove the terminal block from the top of the MC3 Controller to expose three yellow jumpers. Set the jumps as required by system specifications.

Auto Reset Mode (Factory Setting)

Leave all three jumpers connected.

Manual Reset Mode

Remove all three jumpers.

Signal name

Terminal name

Description of operation

Wiring

Power supply

input

Y1, Y2

Power supply input terminals for MC3

Connect the power source to the Y1 and Y2 terminals.

Connect the power supply plus (24 VDC) to the Y1

terminal.

Connect the power supply minus (GND) to the Y2

terminal.

Safety Mat

input

M11, M12,

M21, M22

To turn ON safety outputs, all the connected safety

mats must have no load.

Otherwise, the safety outputs will NOT turn ON.

Reset input

X1, X2

The Safety Outputs can be turned ON only after the

connection between X1 and X2 closes and then opens.

If the connection between X1 and X2 does not close

and open, the Safety Outputs will not turn ON.

Manual Reset

Mode

The normal operation can be made if the connection

between X1 and X2 is open.

Auto Reset Mode

Safety output

13-14, 23-24

The Safety Outputs are turned ON and OFF according to

the status of the Safety Mat inputs and the reset input.

Keep these outputs Open when NOT used.

Auxiliary

output

31-32, 41-42

Turns ON/OFF according to the state of the opposite

logic to the safety outputs.

Keep these outputs Open when NOT used.

Control Circuit

Power

supply

M21

42

32

24

14

23

13

X2

X1

Y1

Y2

31

41

M12

M11

M22

M12

Brown

Safety Mat

UM

Black

White

Blue

Blue

White

M11

M21

M22

Reset switch

X1

X2

X1

X2

Three yellow jumpers

Terminal block removed

from top of Controller