Wiring Precautions With Safety Devices - Mitsubishi Electric MELSEC QS SERIES User Manual

6
PROCEDURES AND SETTINGS BEFORE SYSTEM
OPERATION

6.5.5 Wiring precautions with safety devices

This section describes the precautions for wiring to each safety device.
(1) Wiring of the input terminal section
• X0 and X1
• X8 and X9
T0(+) T1(+)
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- 19 6.5 Wiring
6.5.5 Wiring precautions with safety devices
(a) Combinations of input terminals
Input terminals can be used in the following combinations only.
Using them in any other combination will result in a moderate error.
• X2 and X3
• XA and XB
X0(-) X1(-) X2(-)
Safety remote I/O module
Figure 6.10 Combination example of input terminals
(b) Combinations of the test pulse output terminals
Using the same test pulse for one device is not allowed.
If the same test pulse is used in combinations such as X0 + T0 and X1 + T0, a
moderate error will occur.
T0(+) T1(+) X0(-) X1(-)
Safety remote I/O module
Figure 6.11 Combination example of test pulse terminals
• X4 and X5 • X6 and X7
• XC and XD • XE and XF
T0(+) T1(+) X0(-)
Safety remote I/O module
T0(+) T1(+)
Safety remote I/O module
X1(-) X2(-)
X0(-) X1(-)