Mitsubishi Electric MELSEC iQ-F Series User Manual page 93

Handling of 24 V DC input
■Input terminal
• FX5UC-32MT/D
When a no-voltage contact or NPN open collector transistor output is connected between an input (X) terminal and the [COM] terminal and the circuit
is closed, the input (X) turns on.
To turn on the I/O display LEDs, set the DISP switch to IN.
*1
X
X
COM
*1: Input impedance
• FX5UC-32MT/DSS
In the sink input, the input (X) is turned on by connecting 24 V DC [+] with
the [COM] terminal, and connecting a no-voltage contact or NPN open
collector transistor output between the input terminal and 24 V DC to
close the circuit.
To turn on the I/O display LEDs, set the DISP switch to IN.
• Sink input wiring
*1
X
X
COM
*1: Input impedance
• RUN terminal setting
X000 to X017 of a CPU module can be used as RUN input terminals by setting
parameters. MELSEC iQ-F FX5 User's Manual (Application)
■Input circuit
• Function of an input circuit
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
Input response time FX5UC-32MT/D,
(H/W filter delay) FX5UC-32MT/DSS
I/O module
• Change of filter time
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
Input response time
(Digital filter setting value)
Fuse 24 V DC
Fuse
24 V DC
X000 to X005
X006 to X017
Specifications
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
In the source input, the input (X) is turned on by connecting 24 V DC [-]
with the [COM] terminal, and connecting a no-voltage contact or PNP
open collector transistor output between the input terminal and 24 V DC
to close the circuit.
To turn on the I/O display LEDs, set the DISP switch to IN.
• Source input wiring
*1
X
*1: Input impedance
Specifications
ON: 2.5 µs or less
OFF: 2.5 µs or less
ON: 30 µs or less
OFF: 50 µs or less
ON: 50 µs or less
OFF: 150 µs or less
X
COM
Fuse
24 V DC