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ID : 11053

Safety I/O Wiring

This section describes the details of the Safety I/O in the following categories.

Wiring table

The following shows the correspondence table of the safety I/O cable terminal number and the line color.

Terminal number of connector

(viewed from the connector mating face)

Terminal Number Name Wiring pair Wire color
1 External Emergency Stop input 1b-1 Pair Black
31 External Emergency Stop input 1b-2 Pink
2 External Emergency Stop input 2b-1 Pair Brown
32 External Emergency Stop input 2b-2 Pink
3 Protective Stop input 1-1 Pair Red
33 Protective Stop input 1-2 Pink
4 Protective Stop input 2-1 Pair Orange
34 Protective Stop input 2-2 Pink
5 Enable Auto input 1-1 Pair Yellow
35 Enable Auto input 1-2 Pink
6 Enable Auto input 2-1 Pair Green
36 Enable Auto input 2-2 Pink
7 - Pair Blue
37 - Pink
8 - Pair Black
38 - Gray
9 - Pair Brown
39 - Gray
10 Enable switch output 1-1 Pair Red
40 Enable switch output 1-2 Gray
11 Enable switch output 2-1 Pair Orange
41 Enable switch output 2-2 Gray
12 - Pair Yellow
42 - Gray
13 Emergency Stop output 1b-1 Pair Green
43 Emergency Stop output 1b-2 Gray
14 Emergency Stop output 2b-1 Pair Blue
44 Emergency Stop output 2b-2 Gray
15 - Pair Violet
30 - Gray
16 STO monitor output 1+ Pair Black
17 STO monitor output 1- White
18 STO monitor output 2+ Pair Brown
19 STO monitor output 2- White
20 STO output 1+ Pair Red
21 STO output 1- White
22 STO output 2+ Pair Orange
23 STO output 2- White
24 EDM input+ Pair Yellow
25 EDM input- White

Signal type

The following types of Safety I/O signals are provided.

External Emergency Stop Input

To stop motors.

Terminal Number Contents
1 and 31 (Line 1)
  • Short-circuit : Emergency stop disabled (motor does not stop)
  • Open : Emergency stop enabled (motor stops)
  • An error occurs if the status of line 1 and line 2 are inconsistent.
2 and 32 (Line 2)

Protective Stop Input

To stop motors temporary.

Terminal Number Contents
1 and 33 (Line 1)
  • Short-circuit : protective stop disabled (motor does not stop)
  • Open : protective stop enabled (motor stops temporary)
  • An error occurs if the status of line 1 and line 2 are inconsistent.
4 and 34 (Line 4)

Enable Auto Input

A signal to set an MC9 series controller to AUTO mode.

Terminal Number Contents
5 and 35 (Line 1)
  • Short-circuit : Switching to Auto mode is available.
  • Open : Switching to Auto mode is not available.
  • An error occurs if the status of line 1 and line 2 are inconsistent.
6 and 36 (Line 2)

STO monitor Output, STO Output

To inform an external device of the STO state.

Emergency Stop Output signal

To inform an external device of the emergency stop input state.

Enable switch Output

To inform an external device of the enable switch state.

EDM Input

EDM signal monitors any failure of the STO function of an external device.

To connect this input with any device which does not equip EDM signal, connect the EDM input as the following figure shows.

ID : 11053

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