Mitsubishi Electric MELSEC-QS Series Safety Application Manual page 37

4
PRECAUTIONS FOR USE OF SAFETY
PROGRAMMABLE CONTROLLER
(3) Connecting safety components
Connect safety components according to the safety level by dual wiring and single
wiring as shown in Figure 4.5.
POINT
POINT
To execute the Input dark test function, connect the safety components using a test
pulse terminal.
POINT
POINT
When not performing input dark test, the COM+ terminal can be used.
For wiring and setting methods, refer to CHAPTER 5 and CHAPTER 6.
For details on dual wiring, single wiring, and input dark test, refer to the following.
Doubling wiring
Safety
programmable
Single wiring
controller
Figure 4.5 Wiring of safety components
Use the doubling input signal to the CC-Link 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 CC-Link 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
Doubling wiring
Single wiring
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3
4
5
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