Mitsubishi FX3UC SERIES User Manual page 197

FX Series Programmable Controllers
3UC
User's Manual - Hardware Edition
7.3 Input Interruption - With Delay Function, Pulse Catch
This section shows wiring examples for input interruption (I000 or I001) using X000.
When using another input interruption or pulse catch, perform wiring in reference to the figures below.
Caution
Use shielded twisted-pair cables for connecting cables.
Ground the shield of each shielded cable only on the PLC side.
Observe the following items for input interruption or pulse catch using the inputs X000 to X005.
• The wiring length should be 5m (16.4") or less.
• Connect a bleeder resistance of 1.5kΩ (1W or more) to the input terminal, so that the sum of the load
current of the open collector transistor output on the mating device side and the input current of the main
unit is 20mA or more.
1. NPN open collector transistor output three-wire sensor
1) In case of the FX
PLC
2) In case of the FX
PLC
→ For input allocation in input interruption, refer to Section 5.6.
- MT/D, FX -32MT-LT
3UC 3UC
Fuse
24V DC
+
-
1.5
Class D
kΩ
grounding*
COM
X000
* The grounding resistance should be 100Ω or less.
- MT/DSS [Sink input wiring]
3UC
Fuse
+
-
Class D
COM0 grounding*
1.5
kΩ
X000
* The grounding resistance should be 100Ω or less.
7.3 Input Interruption - With Delay Function, Pulse Catch
→ For input allocation in oulse catch, refer to Section 5.7.
Three-wire
sensor
24V DC
Three-wire
sensor
7 Examples of Wiring for Various Uses
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