Terminal Layout; Interpretation Of Terminal Block Layout - Mitsubishi Electric MELSEC-F FX3G Series User Manual

FX Series Programmable Controllers
3G
User's Manual - Hardware Edition
4.7

Terminal Layout

The terminal layout in the main unit is shown below.
4.7.1

Interpretation of terminal block layout

Power supply terminals
S/S X1
L N X0 X2
FX -40MT/ES
3G
0V Y0 Y1
24V
COM0 COM1 COM2
24V DC service
Common terminal
power supply (4 points/common
terminal)
• Indication of Power supply terminals
The AC power supply type has [L] and [N] terminals.
The DC power supply type has [
For external wiring, make sure to read the power supply wiring described later.
• Indication of 24V DC service power supply
The AC power supply type has [0V] and [24V] terminals, whereas the DC power supply type shows [•]
since the DC power supply type does not have the service power supply.
Do not connect with [•] terminals.
For external wiring, make sure to read the power supply wiring described later.
• Indication of Input terminal
Both AC and DC power supply type have the same input terminals, however, the external input wiring
differs from each other.
For external wiring, make sure to read the input wiring described later.
• Indication of output terminals connected to common terminal
One common terminal covers 1, 2, 3 or 4 output points.
The output numbers (Y) connected to a common terminal are enclosed with heavy partition lines.
For transistor output (source) type, [COM ] is [+V ].
4 Specifications, External Dimensions and Terminal Layout (Main Units)
Input terminal
X3 X5 X7 X11 X13 X15 X17
X4 X6 X10 X12 X14 X16 X20
Output terminals
connected to COM5
Y2 Y4 Y6 Y10 Y12
Y3 Y5 Y7 Y11 Y13
COM3 COM4
Output
terminal
] and [
X21 X23 X25 X27
X22 X24 X26
[ · ] Vacant terminal (Do not use.)
Y14 Y16
Y15 Y17
COM5
Partition
] terminals.
4.7 Terminal Layout
→ Refer to Chapter 9.
→ Refer to Chapter 9.
→ Refer to Chapter 10.
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