24
2 SPECIFICATIONS
2.3 Input Specifications
2.3 Input Specifications
The CPU module input specifications are explained below.
24 V DC Input (sink/source)
The input points in the table below indicate the CPU module terminal points.
Item Specifications
No. of input points FX5U-32M 16 points
FX5U-64M 32 points
FX5U-80M 40 points
Connection type Removable terminal block (M3 screws)
Input type Sink/source
Input signal voltage 24 V DC +20 %, -15%
Input signal current X0 to X17 5.3 mA/24 V DC
X20 and subsequent 4.0 mA/24 V DC
Input impedance X0 to X17 4.3 kΩ
X20 and subsequent 5.6 kΩ
ON input sensitivity
current
X0 to X17 3.5 mA or more
X20 and subsequent 3.0 mA or more
OFF input sensitivity current 1.5 mA or less
Input response
frequency
FX5U-32M X0 to X5 200 kHz
When capturing pulses of a response frequency of 50 to 200 kHz, refer to Page 112 In the case of
capturing high-speed pulses.
FX5U-64M,
FX5U-80M
X0 to X7
FX5U-32M X6 to X17 10 kHz
FX5U-64M,
FX5U-80M
X10 to X17
FX5U-64M,
FX5U-80M
X20 and
subsequent
0.1±0.05 kHz
Pulse waveform Waveform
T1 (pulse width) T2 (rise/fall time)
FX5U-32M X0 to X5 2.5 μs or more 1.25 μs or less
FX5U-64M,
FX5U-80M
X0 to X7
FX5U-32M X6 to X17 50 μs or more 25 μs or less
FX5U-64M,
FX5U-80M
X10 to X17
Input response time
(H/W filter delay)
FX5U-32M X0 to X5 ON: 2.5 μs or less
OFF: 2.5 μs or less
FX5U-64M,
FX5U-80M
X0 to X7
FX5U-32M X6 to X17 ON: 30 μ
s or less
O
FF: 50 μs or less
FX5U-64M,
FX5U-80M
X10 to X17
FX5U-64M,
FX5U-80M
X20 and
subsequent
ON: 50 μs or less
OFF: 150 μs or less
Input response time
(Digital filter setting value)
None, 10 μs, 50 μs, 0.1 ms, 0.2 ms, 0.4 ms, 0.6 ms, 1 ms, 5 ms, 10 ms (initial values), 20 ms, 70 ms
When using this product in an environment with much noise, set the digital filter.
Input signal format No-voltage contact input
Sink: NPN open collector transistor
Source: PNP open collector transistor
Input circuit insulation Photo-coupler insulation
Indication of input operation LED is lit when input is on
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