Mitsubishi Electric FX3U SERIES - POWER (POW) Indicator Lamp (Statuses: ON, Flashing, off; RUN Indicator Lamp (Statuses: ON, off; BATT (BAT) Indicator Lamp (Statuses: ON, OFF); Fx 3 Uc

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Common Items
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Built-in Positioning Functions
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Example Connection
13 Troubleshooting
FX 3S /FX 3G /FX 3GC /FX 3U /FX 3UC PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
13.1 LED Indicator Lamp Check
13.1.1 POWER (POW) Indicator Lamp (Statuses: ON, flashing, OFF)
13.1.2 RUN Indicator Lamp (Statuses: ON, OFF)
13.1.3 BATT (BAT) Indicator Lamp (Statuses: ON, OFF) [FX3U/FX3UC]
13.1.4 ALM Indicator Lamp (Statuses: ON, OFF) [FX3G/FX3GC]
This LED is valid when the optional battery is installed and the battery mode is selected using a parameter.
Lamp
status
Status of PLC Troubleshooting
ON
The specified voltage is properly
supplied to the power supply terminal.
The power is being supplied properly.
Flashing
The PLC may be at one of the following
statuses:
· The specified voltage/current is not
supplied to the power supply
terminal.
· An external line is not properly
connected.
· The PLC has a problem.
· Check the power supply voltage.
· Excluding the power cable, disconnect all other cables, and
then turn the power ON again. Check the lamp status. If the
lamp flashes again, please contact your local Mitsubishi
Electric representative.
OFF
The PLC may be at one of the following
statuses:
· The power is off.
· The specified voltage is not
supplied to the power supply
terminal.
· The power cable is disconnected.
If the power is on, check the power supply unit and the power supply
line.
If the power is properly supplied, please contact your local Mitsubishi
Electric representative.
Lamp
status
Status of PLC Troubleshooting
ON
The sequence program is being
executed.
The RUN indicator lamp indicates the operation status of the PLC.
Note that the RUN indicator lamp will go out depending on the status
of the ERROR indicator lamp (refer to Subsection 13.1.4).
OFF
Execution of the sequence program is
stopped.
Lamp
status
Status of PLC Troubleshooting
ON
The voltage of the battery is too low. Immediately replace the battery (refer to the manual of the PLC).
OFF
The battery supplies enough voltage as
specified by D8006.
The PLC has no problems.
Lamp
status
Status of PLC Troubleshooting
ON
The voltage of the battery is too low. Immediately replace the battery (refer to the manual of the PLC).
OFF
The battery supplies enough voltage as
specified by D8006.
The PLC has no problems.
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