68
4 Specifications, External Dimensions and Terminal Layout (Main Units)
4.7 Terminal Layout
FX
3U
Series Programmable Controllers
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
• Indication of Power supply terminals
The AC power type has [L] and [N] terminals, whereas the DC power type has [
] and [
] terminals.
For external wiring, make sure to read the power supply wiring described later.
→
Refer to Chapter 9.
• 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.
→
Refer to Chapter 9.
• 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.
→
Refer to Chapter 10.
• 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
3U
-16MR/ (top right figure)
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.
→
Refer to Chapter 12.
X0
S/S 0V
24V
N
L
X1
X2
X3
X4
X5
X6
X7
X10
X11
X12
X13
X14
X15
X16
X17
Y4
Y2
Y3
COM2
Y1
Y0
COM1
Y5
Y6
Y7
Y10
Y11
Y12
Y13
Y14
Y15
Y16
Y17
COM3
COM4
FX
3U
-32MR/ES
Y0
Y1
Y0
Y1
Y2
Y2
Y3
Y3
Y4
Y4
Y5
Y5
Y6
Y6
Y7
Y7
Input terminal
Power supply
terminals
(Output side terminals of FX
3U
-16MR/ )
Output terminal
Partition
Common terminal
(4 points/common
terminal)
24V DC service
power supply
Same signal name
[
•
] Vacant terminal (Do not use.)
Partition
Output terminals
connected to COM4
Содержание FX2-16E series
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