Terminal Layout; Interpretation - Mitsubishi FX3U SERIES User Manual

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

Terminal Layout

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

Interpretation

Interpretation of terminal block layout
Power supply
terminals
S/S 0V
L N
FX -32MR/ES
3U
Y0 Y2
COM1 Y1 Y3 COM2
Common terminal
(4 points/common
terminal)
• Indication of Power supply terminals
The AC power type has [L] and [N] terminals, whereas the DC power 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 type has [0V] and [24V] terminals, whereas the DC power type shows [(0V)] and [(24V)]
since the DC power type does not have the service power supply.
Do not connect with [(0V)] and [(24V)] terminals.
For external wiring, make sure to read the power supply wiring described later.
• Indication of Input terminal
Both AC and DC power 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 (COM )
One common terminal covers 1, 4 or 8 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 ].
• Output terminals of FX
One output point is connected to one common terminal.
Both ends of a relay output contact are wired, and the same signal name is shown on both sides.
For external wiring, make sure to read the output wiring described later.
62
24V DC service
Input terminal
power supply
X0 X2 X4 X6 X10 X12
24V X1 X3 X5 X7 X11 X13
Output terminals
connected to COM4
Y4 Y6 Y10 Y12
Y5 Y7 COM3 Y11 Y13 COM4
Output terminal
-16MR/ (top right figure)
3U
4 Specifications, External Dimensions and Terminal Layout (Main Units)
[ • ] Vacant terminal (Do not use.)
X14 X16
X15 X17
(Output side terminals of FX
Y14 Y16 Y0
Y15 Y17 Y0
Same signal name
Partition
4.7 Terminal Layout
-16MR/ )
3U
Y1 Y2 Y3 Y4 Y5 Y6 Y7
Y1 Y2 Y3 Y4 Y5 Y6 Y7
Partition
] and [
→ Refer to Chapter 9.
→ Refer to Chapter 9.
→ Refer to Chapter 10.
→ Refer to Chapter 12.
] terminals.