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12 Output Wiring Procedures
12.2 External Wiring of Transistor Output (Sink/Source) Type
177
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
11
High-Speed
Counters
12
Output Wiring
13
Wiring for
Various Uses
14
Test Run,
Maintenance,
Troubleshooting
15
Input/Output
Powered
Extension Units
16
Input/Output
Extension
Blocks
17
Extension
Power Supply
Unit
18
Other Extension
Units and
Options
19
Display Module
20
Terminal Block
12.2 External Wiring of Transistor Output (Sink/Source) Type
This section explains the procedures for handling transistor output and external wiring.
For the transistor output specifications, refer to the following.
→ For the specifications on the main unit, refer to Subsection 4.4.2.
→ For the specifications on the input/output powered extension unit, refer to Chapter 15.
→ For the specifications on the input/output extension block, refer to Chapter 16.
12.2.1 Transistor Output Sink and Source
FX3G Series main units, FX2N Series input/output extension units/blocks of transistor sink output type and of
transistor source output type are available.
1. Differences in circuit
• Sink output [-common]
Output to make load current flow into the output (Y) terminal is
called sink output.
• Source output [+common]
Output to make load current flow out of the output (Y) terminal is
called source output.
Load
Y
Fuse DC
power
supply
COM
Load
Y
Fuse
DC
power
supply
+V