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6
TROUBLESHOOTING
CHAPTER 6 TROUBLESHOOTING
This chapter describes error contents that may occur while using the AJ65SBT2B-64AD
and troubleshooting.
6.1
Error Check Method by the LED Display
This section describes how to check errors by the LED display of the AJ65SBT2B-64AD.
For errors related to the CPU module and the master module, refer to the user's manual
for the modules.
(1) When the PW LED turns off
(2) When the RUN LED flashes
Flash
interval
Are the values of CH1 Input range
setting (0th bit) (RYn4) to CH4 Input
range setting (2nd bit) (RYnF)
correct?
Is Hardware error flag (RXnA) ON?
0.1s
Normal mode
Is User range read error flag (RXnB)
ON?
Are the values of CH1 Average
processing setting (RWwm) to CH4
0.5s
Average processing setting
(RWwm+3) correct?
Table 6.1 When the PW LED of the AJ65SBT2B-64AD turns off
Check item
Is the 24VDC power supply turned on?
Is the voltage of the 24VDC power supply within the
specified range?
Table 6.2 When the RUN LED of the AJ65SBT2B-64AD flashes
Check item
Check the external power supply.
Set the voltage value within the range of 20.4 to
28.8V.
Action
Referring to Section 3.4.4, check CH1 Input range setting (0th bit)
(RYn4) to the CH4 Input range setting (2nd bit) (RYnF). If a setting
value of a channel is wrong, set it to a correct value.
Turn the power supply of the AJ65SBT2B-64AD from off to on.
If the same error occurs again, the possible cause is a hardware
failure. Please consult your local Mitsubishi representative.
Configure the offset/gain setting again for all channels where the user
range setting is used in test mode.
If the same error occurs again even after the offset/gain setting is
configured correctly, the possible cause is a hardware failure. Please
consult your local Mitsubishi representative.
Referring to Section 3.4.3, check CH1 Average processing setting
(RWwm) to CH4 Average processing setting (RWwm+3). If a setting
value of a channel is wrong, set it to a correct value.
6.1 Error Check Method by the LED Display
Action
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Table of Contents
Troubleshooting
