Panasonic FP-X0 L14R User Manual page 178

<For error code is 42 (2)>
- Condition
A temporary blackout such as a momentary power off occurred and the power supply of the expansion
unit was turned off.
- Operation 1
Once the power supply of the expansion unit is restored, the control unit will be automatically reset and
restarted.
<For error code is 43>
Using FPWIN GR
Click on the "Clear Error" button in the "Status display dialog box". Error code 43 and higher can be
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cleared.
In the PROG. mode, the power supply can be turned off and then on again to clear the error, but all of
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the contents of the operation memory except hold type data will be cleared.
An error can also be cleared by executing a self-diagnostic error set instruction F148 (ERR).
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Key Point:
When an operation error (error code 45) occurs, the address at which the error occurred is stored in
special data registers DT90017 and DT90018. If this happens, click on the "Operation Err" button in the
"Status display dialog box" and confirm the address at which the error occurred before cancelling the
error.
10.2.2 If ERR. LED is ON
Condition: The system watchdog timer has been activated and the operation of PLC has been
activated.
Procedure 1
Set the mode selector of PLC from RUN to PROG. mode and turn the power off and then on.
If the ERR. LED is turned on again, there is probably an abnormality in the control unit. Please contact
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your dealer.
If the ERR. LED flashes, refer to chapter 10.2.1.
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Procedure 2
Set the mode selector from PROG. to RUN mode.
If the ERR. LED is turned on, the program execution time is too long. Check the program.
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Check
Check if instructions such as "JMP" or "LOOP" are programmed in such a way that a scan never finish.
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Check if interrupt instructions are executed in succession.
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10.2.3 ALL LEDs are OFF
Procedure 1
Check wiring of power supply.
Procedure 2
Check if the power supplied to the control unit is in the range of the rating.
Be sure to check the fluctuation of the voltage.
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Procedure 3
Disconnect the power supply wiring to the other devices if the power supplied to the control unit is
shared with them.
If the LED on the control unit turns on at this moment, increase the capacity of the power supply or
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prepare another power supply for other devices.
Please contact your dealer for further questions.
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Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com