FP
Σ
12.1 Self-Diagnostic Function
12 - 3
12.1 Self-Diagnostic Function
This section explains about the self-diagnostic function of FP
Σ
.
12.1.1
LED Display for Status Condition
Status indicator LEDs on control unit
LED status
Description
Operation status
RUN
PROG.
ERROR/
ALARM
Normal
condition
Light (on)
Off
Off
Normal operation
Operation
condition
Off
Light (on)
Off
PROG. mode
Stop
Flashes
Flashes
Off
Forcing on/off in Run
mode
Operation
Abnormal
condition
Off
Off
Flashes
When a self-diagnostic
error occurs
Operation
Off
Light (on)
Flashes
When a self-diagnostic
error occurs
Stop
Varies
Varies
Light (on)
System watchdog timer
has been activated
Stop
The control unit has a self-diagnostic function which
identifies errors and stops operation if necessary.
When an error occurs, the status of the status indicator
LEDs on the control unit vary, as shown in the table
above.
Status
indicator
LED
Figure 228: FP
Σ
Status indicator LED
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...