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5. TROUBLESHOOTING
This section describes the measures when a trouble occurred in the
AJ65BTS-RPH.
Perform the troubleshooting indicated in the reference section.
*1 If more than one problem occurred simultaneously, perform the
troubleshooting in order of the item numbers.
(1) The POWER LED is not lit while the module power is ON
Troubleshooting is shown below for the case that the POWER LED is not
lit while the module power is ON.
No.
*1
Problem
Reference
section
1
The POWER LED is not lit while the module power is ON.
(1) in this chapter
2
The RUN LED is not lit while the module power is ON.
(2) in this chapter
3
The ERR. LED lighted up or blinked.
(3) in this chapter
4
The RD LINK IN/OUT LED does not light up during data link.
(4) in this chapter
5
The RD LINK 1 to 8 LEDs corresponding to the data linking branch
lines do not light up.
(5) in this chapter
YES
The POWER LED does not light up
Was the module power turned on?
Is power supply voltage correct?
(Refer to Section 3.2)
The hardware may have a defect.
Contact your local Mitsubishi representative,
explaining a detailed description of the problem.
Is the power cable connected correctly?
(Refer to Section 4.3)
YES
YES
NO
NO
NO
Turn on the module power.
Connect the power cable correctly.
(Refer to Section 4.3)
Correct the power supply voltage.
(Refer to Section 3.2)
Completion