FP
Σ
5.3 Wiring of Input and Output
5 - 15
5.3.2
Output Wiring
Protective circuit for inductive loads
With an inductive load, a protective circuit should be installed in parallel with the load.
When switching DC inductive loads with relay output type, be sure to connect a diode
across the ends of the load.
When using an AC inductive load
COM
Output
terminal
Varistor
FP
Σ
Load
When using a DC inductive load
FP
Σ
Reverse voltage (V
R
): 3 times the load voltage
Average rectified forward current (I
0
): Load current or more
Diode:
COM
Output
terminal
Diode
Load
Precautions when using capacitive loads
When connecting loads with large in-rush currents, to minimize their effect, connect a
protection circuit as shown below.
Load
Resistor
Output
terminal
COM
Load
Inductor
Output
terminal
COM
FP
Σ
FP
Σ
Figure 46: FP
Σ
Precautions when using capacitive loads
About the short-circuit protective circuit
To prevent the output circuit from being damaged by a short-circuit or other electrical
problems on the output side, a transistor with short-circuit protection is provided.
Example of surge absorber: R: 50
Ω
, C: 0.47
μ
F
FP
Σ
COM
Output
terminal
Surge absorver
Load
Содержание FP Series
Страница 15: ...FP Functions and Restrictions of the Unit 1 2...
Страница 25: ...FP Specifications and Functions of Control Unit 2 2...
Страница 37: ...FP Expansion 3 2...
Страница 44: ...Chapter 4 I O Allocation 4 1 I O Allocation 4 3...
Страница 45: ...FP I O Allocation 4 2...
Страница 51: ...FP Installation and Wiring 5 2...
Страница 77: ...FP High speed Counter and Pulse Output Functions 6 2...
Страница 133: ...FP High speed Counter and Pulse Output Functions 6 58...
Страница 135: ...FP Communication Cassette 7 2...
Страница 147: ...FP Communication Function 1 Computer Link 8 2...
Страница 169: ...FP Communication Function 2 General purpose Serial Communication 9 2...
Страница 205: ...FP Communication Function 2 General purpose Serial Communication 9 38...
Страница 207: ...FP Communication Function 3 PLC Link Function 10 2...
Страница 232: ...Chapter 11 Other Functions 11 1 Analog Potentiometer 11 3 11 2 Clock Calendar Function 11 4...
Страница 233: ...FP Other Functions 11 2...
Страница 238: ...Chapter 12 Self Diagnostic and Troubleshooting 12 1 Self Diagnostic Function 12 3 12 2 Troubleshooting 12 5...
Страница 239: ...FP Self Diagnostic and Troubleshooting 12 2...
Страница 249: ...FP Self Diagnostic and Troubleshooting 12 12...
Страница 251: ...FP Specifications 13 2...
Страница 323: ...Index FP I 4...
Страница 325: ...FP Record of changes R 2...