FP
Σ
12.2 Troubleshooting
12 - 9
Check of input condition 4: Input indicator LEDs are on
Procedure
Monitor the input condition using a programming tool.
- If the input monitored is off, there is probably an abnormality with the input unit.
Please contact your dealer.
- If the input monitored is on, check the leakage current at the input devices (e.g.,
two-wire type sensor) and check the program again, referring the following:
Check for the duplicated use of output and for the output using the high-level
instruction.
Check the program flow when a control instruction such as
Master control relay
or
Jump
is used.
Summary of Contents for FP Series
Page 15: ...FP Functions and Restrictions of the Unit 1 2...
Page 25: ...FP Specifications and Functions of Control Unit 2 2...
Page 37: ...FP Expansion 3 2...
Page 44: ...Chapter 4 I O Allocation 4 1 I O Allocation 4 3...
Page 45: ...FP I O Allocation 4 2...
Page 51: ...FP Installation and Wiring 5 2...
Page 77: ...FP High speed Counter and Pulse Output Functions 6 2...
Page 133: ...FP High speed Counter and Pulse Output Functions 6 58...
Page 135: ...FP Communication Cassette 7 2...
Page 147: ...FP Communication Function 1 Computer Link 8 2...
Page 169: ...FP Communication Function 2 General purpose Serial Communication 9 2...
Page 205: ...FP Communication Function 2 General purpose Serial Communication 9 38...
Page 207: ...FP Communication Function 3 PLC Link Function 10 2...
Page 232: ...Chapter 11 Other Functions 11 1 Analog Potentiometer 11 3 11 2 Clock Calendar Function 11 4...
Page 233: ...FP Other Functions 11 2...
Page 239: ...FP Self Diagnostic and Troubleshooting 12 2...
Page 249: ...FP Self Diagnostic and Troubleshooting 12 12...
Page 251: ...FP Specifications 13 2...
Page 323: ...Index FP I 4...
Page 325: ...FP Record of changes R 2...