Mitsubishi MELSEC iQ-F FX5UC, User Manual

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6 WIRING
6.5 Input Wiring
■
Input circuit
• Function of an input circuit
• Change of filter time
■
Input sensitivity
For the input signal current and input sensitivity current of the CPU modules, refer to

Page 22 Input Specifications.
For the input signal current and input sensitivity current of the I/O modules, refer to

Page 144 Input specifications.
■ Display of operation
The LED turns ON when the photocoupler is driven.
With CPU module, FX5-C32EX/
 or FX5-C32ET/  , the LED target is switched with the DISP switch.
• CPU module, FX5-C32ET/  : Input (IN)/Output (OUT)
• FX5-C32EX/  : Smaller number (F)/Larger number (L)
Precautions for connecting input devices
■
In the case of no-voltage contact
Use input devices appropriate for low electric current.
If no-voltage contacts for high current (switches) are used, contact failure may occur.
■
In the case of input device with built-in series diode
The voltage drop of the series diode should be the following value or less.
Also make sure that the input current is over the input-sensing level while the switches are on.
The primary and secondary circuits for input are insulated with photocoupler, and the second circuit is provided with a C-
R filter.
The C-R filter is designed to prevent malfunctions caused by chattering of the input contact and noise from input line.
Input has a response delay switching from ON to OFF and OFF to ON, shown in the following table.
Item Specifications
Input response time
(H/W filter delay) FX5UC-32MT/  X0 to X5 ON: 2.5 μ s or less
OFF: 2.5 μ s or less
FX5UC-64MT/  ,
FX5UC-96MT/ 
X0 to X7
High-speed pulse input/output module X0 to X5
FX5UC-32MT/  X6 to X17 ON: 30
μ
s or less
OFF: 50
μ
s or less
FX5UC-64MT/  ,
FX5UC-96MT/ 
X10 to X17
High-speed pulse input/output module X6, X7
FX5UC-64MT/  ,
FX5UC-96MT/ 
X20 and
subsequent ON: 50
μ
s or less
OFF: 150
μ
s or less
Input module, Input/output module, Powered input/output module
All input circuits have digital filters, and the input response time shown in the following table can be added by setting
parameters. When using this product in an environment with much noise, set the digital filter.
Item Specifications
Input response time
(Digital filter setting value) None, 10 μ s, 50 μ s, 0.1 ms, 0.2 ms, 0.4 ms, 0.6 ms, 1 ms, 5 ms, 10 ms (initial values), 20 ms, 70 ms
Item Specifications
Voltage drop FX5UC-32MT/  X0 to X5 3.9 V
FX5UC-64MT/  ,
FX5UC-96MT/ 
X0 to X7
High-speed pulse input/output module X0 to X5
FX5UC-32MT/  X6 to X17 4.1 V
FX5UC-64MT/  ,
FX5UC-96MT/ 
X10 to X17
High-speed pulse input/output module X6, X7
FX5UC-64MT/  ,
FX5UC-96MT/ 
X20 and
subsequent 2.4 V
Input module, Input/output module, Powered input/output module