Mitsubishi Electric MELSEC iQ-F Series User Manual page 182

■Two-wire proximity switch
Use a two-wire proximity switch whose leakage current, I is 1.5mA or less when the switch is off.
When the leakage current I is larger than 1.5mA, connect a bleeder resistance Rb (k) obtained by the following formula as
shown in the following figure.
Module
FX5S CPU module
FX5UJ CPU module
FX5U CPU module
FX5UC CPU module
High-speed pulse input/output module
Input module
I/O module
Powered input/output module
Module
FX5S CPU module
FX5UJ CPU module
FX5U CPU module
FX5UC CPU module
13 WIRING
180
13.5 Input Wiring
FX5U-32
FX5U-64
FX5U-80
FX5UC-32
FX5UC-64
FX5UC-96
Wiring example
Sink input [-common]
24V
S/S
Programmable controller
(sink input)
X
0V
• Example of the FX5UC-32MT/DSS
FX5UC-32MT/DSS
X
Bleeder
resistance
Rb
COM
Fuse
• Example of the FX5UC-32MT/D
+24V
Bleeder
resistance
FX5UC-32MT/D
X
COM
X0 to X7
X10 or later
X0 to X5
X6 to X17
X0 to X7
X10 to X17
X20 or later
X0 to X5
X6 to X17
X0 to X7
X10 to X17
X20 or later
Source input [+common]
Bleeder
resistance
2-wire
Rb
proximity
Programmable controller
sensor
(source input)
• Example of the FX5UC-32MT/DSS
2-wire
FX5UC-32MT/DSS
sensor
24VDC
Rb
2-wire
sensor
Bleeder resistance Rb
7 / (I - 1.5)k or less
9 / (I - 1.5)k or less
7 / (I - 1.5)k or less
7 / (I - 1.5)k or less
7 / (I - 1.5)k or less
7 / (I - 1.5)k or less
9 / (I - 1.5)k or less
7 / (I - 1.5)k or less
7 / (I - 1.5)k or less
7 / (I - 1.5)k or less
7 / (I - 1.5)k or less
9 / (I - 1.5)k or less
7 / (I - 1.5)k or less
9 / (I - 1.5)k or less
9 / (I - 1.5)k or less
9 / (I - 1.5)k or less
0V
Bleeder
resistance
2-wire
S/S
Rb
proximity
sensor
X
24V
2-wire
sensor
X
Bleeder
Rb
resistance
Fuse
COM
24VDC