137
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 24V DC Input Type
For 5V DC input (FX2N-16EXL-C), refer to Section 5.3.
For AC input (FX
2N-8EX-UA1/UL, FX0N-8EX-UA1/UL), refer to Section 5.4.
5.2.1 24V DC Input Specifications
Inputs in the main unit are restricted by the simultaneous ON ratio.
→ For the restriction in simultaneous ON ratio, refer to Subsection 5.2.2.
Item
24V DC Input Specifications
FX3UC-MT/D, FX3UC-32MT-LT,
FX
2NC-EX(-T) (Sink input)
FX0N / FX2N Input extension blocks
(Sink input)
Number of input
points
FX
3UC-16MT/D: 8 points
FX
3UC-32MT/D: 16 points
FX
3UC-64MT/D: 32 points
FX
3UC-96MT/D: 48 points
FX
3UC-32MT-LT: 16 points
FX
2NC-16EX(-T): 16 points
FX
2NC-32EX: 32 points
FX
0N-8ER: 4 points
FX
0N-8EX: 8 points
FX
2N-8ER: 4 points
FX
2N-8EX: 8 points
FX
2N-16EX(-C): 16 points
Input connecting
type
Except FX
2NC-16EX-T: Connector Except FX2N-16EX-C: Terminal block
FX
2NC-16EX-T: Terminal block FX2N-16EX-C: Connector
Input form
Sink input
Input signal voltage
24V DC +20% -15% Ripple Voltage (p-p) 5% or less
Input impedance
Main unit
X000 to X005 3.9 kΩ
4.3 kΩ
X006, X007 3.3 kΩ
X010 or more 4.3 kΩ
FX2NC-EX(-T) 4.3 kΩ
Input signal
current
Main unit
X000 to X005 6mA/24V DC
5 mA/24V DC
X006, X007 7mA/24V DC
X010 or more 5mA/24V DC
FX2NC-EX(-T) 5mA/24V DC
Input
sensitivity
current
ON
Main unit
X000 to X005 3.5mA or more
3.5 mA or more
X006, X007 4.5mA or more
X010 or more 3.5mA or more
FX2NC-EX(-T) 3.5mA or more
OFF 1.5mA or less
Input response
time
Approx. 10ms
Input signal form No-voltage contact input/NPN open collector transistor
Circuit insulation Photocoupler insulation
Input operation
display
FX3UC-
MT/D,
FX
2NC-
EX(-T)
Turning on the input will light
the LED indicator lamp.
Turning on the input will light the LED
indicator lamp.
FX3UC-32MT-
LT
Monitor by the display module
Input circuit
configuration
X
COM
Photocoupler
*1.Input impedance
*1
24V
DC
Fuse
X
Photocoupler
4.3k
Ω
24V
24V
DC
Fuse
*1
*1.Input impedance