139
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
5 Input Specifications and External wiring
5.2 24V DC Input Type
1
Outline
2
External
Dimensions
3
Generic
Specifications
4
Power Supply
Specifications
5
Input
Specifications
6
Output
Specifications
7
Examples of
Wiring for
Various Uses
8
Terminal Block
9
CC-Link/LT
Master FX
3UC
(LT only)
10
Display module
FX
3UC
(LT only)
5.2.2 Input Derating Curve
The derating curve below shows the simultaneous ON ratio of available PLC inputs with respect to the
ambient temperature. Use the PLC within the simultaneous input ON ratio range shown in the figure.
1. In case of the FX3UC-MT/D, DSS
2. In case of the FX
3UC-32MT-LT
When only the main unit is used
(without extension blocks/units)
Derating curve
Simultaneous ON ratio
80%
55
°
C
Ambient temperature
applicable
20%
45
°
C
When extension blocks/units
are connected
Supply voltage:24V DC
40
°
C
65%
60%
Simultaneous ON ratio
80
°
C
55
°
C
Ambient temperature
applicable
30
°
C 40
°
C
50
°
C
20
°
C
45
°
C
When extension blocks/units
are connected
When only the main unit is used
(without extension blocks/units)
Supply voltage:24V DC
Derating curve