Mitsubishi Electric MELSEC iQ-F FX6U Hardware User Manual page 127

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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.
Item
Voltage drop
FX5U-32M
FX5U-64M, FX5U-80M
High-speed pulse input/output module
FX5U-32M
FX5U-64M, FX5U-80M
High-speed pulse input/output module
FX5U-64M, FX5U-80M
Input module, Input/output modules, Powered input/
output module
■In the case of input device with built-in parallel resistance
Use a device having a parallel resistance Rp (kΩ) of the following value or more.
Item
Parallel resistance Rp (kΩ)
FX5U-32M
FX5U-64M, FX5U-80M
High-speed pulse input/output module
FX5U-32M
FX5U-64M, FX5U-80M
High-speed pulse input/output module
FX5U-64M, FX5U-80M
Input module, Input/output modules, Powered input/
output module
Specifications
X0 to X5
3.9 V
X0 to X7
X0 to X5
X6 to X17
4.1 V
X10 to X17
X6, X7
X20 and
2.4 V
subsequent
Specifications
X0 to X5
14
X0 to X7
X0 to X5
X6 to X17
15
X10 to X17
X6, X7
X20 and
13
subsequent
6
6 WIRING
125
6.5 Input Wiring

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