Mitsubishi Electric Melsec-QS Series Safety Application Manual page 31

Safety programmable controller

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PRECAUTIONS FOR USE OF SAFETY PLC

(3) Connecting safety components

Make a doubling wiring for safety components as shown in Figure4.3.

POINT

To execute the Input dark test function, connect the safety components using a test

pulse terminal.

POINT

For wiring and setting methods, refer to Chapter 5.

For details of doubling wiring and Input dark test function, refer to the following

manual.

(4) Using the monitor data of GX Developer

The monitor data of GX Developer should not be used for the operation related to the

safety.

(For example, the operations for the safety such as starting a machine or resetting the

stop status should not be performed with checking the monitor data of GX Developer.)

Dual input

Safety PLC

Figure4.3 Wiring of safety components

Use the doubling input signal to the safety remote I/O module with the following

combinations of input terminals.

For combinations other than the followings, an error is detected by doubling input

discrepancy detection.

{X00, X01}, {X02, X03}, {X04, X05}, {X06, X07}

{X08, X09}, {X0A, X0B}, {X0C, X0D}, {X0E, X0F}

To execute the Input dark test function, use the test pulse terminals and input

terminals of the safety remote I/O module with the following combinations.

Connecting to the incorrect test pulse terminal is identified as a wire break and

causes an error.

Correct combination

{X00, X02, X04, X06, X08, X0A, X0C, X0E} and T0

{X01, X03, X05, X07, X09, X0B, X0D, X0F} and T1

CC-Link Safety System Remote I/O Module User's Manual

4.1 Precautions for Designing Safety Application

Dual output

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