Mitsubishi FX3U Series User Manual

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FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
19 FX3U-7DM (Display Module)
19.24 Operation Error Messages & Corrective Actions
19.24 Operation Error Messages & Corrective Actions
The following is a list of error messages which the system displays after an operation is performed.
Relevant Menu Screen English Japanese Corrective Action
• All menus
Entry Code error
Cancel the entry code, then attempt the operation
again.
•Entry code
The Entry Code
is not set
No entry code has been registered.
Entry codes cannot be registered from the
display module. A programming tool such as GX
Developer, etc., is required to register entry
codes.
Incorrect
Entry Code!
The entered entry code does not match the
registered entry code. Verify the registered entry
code, then enter the correct entry code.
• Monitor/test
(user-registered
devices)
The wrong device
is registered
A device has been specified that does not exist
among the system information (system signal 1)
"user-registered device" monitor devices. Check
the program.
• Monitor/test
(setting change)
• Memory cassette
transfer
PLC is running Stop the PLC, then attempt the operation again.
Memory Cassette
is
write-protected
Turn the memory cassette’s write-protected
status to OFF, then attempt the operation again.
Write error Writing failed. Verify that the memory cassette is
properly installed.
Read error Reading failed. Verify that the memory cassette
is properly installed.
• PLC Status
• Monitor/test
(setting change)
• Memory cassette
transfer
Fatal error
occurred
→ Refer to Subsection 19.24.1
for details.
• Memory cassette
transfer
Memory Cassette
is misconnected
Turn the PLC power OFF, install the memory
cassette, then attempt the operation again.
The Entry Code
is set in the
Internal Memory
Remove the memory cassette, restart the unit
(power OFF
→ON), then use the programming
tool to cancel the entry code in the internal RAM.
• Memory cassette
transfer
(consistency check)
Programs match
The memory cassette program matches the RAM
program.
Programs
don't match
The memory cassette program does not match
the RAM program.
• Memory cassette
transfer
(reading/writing)
Transfer
completed
Transfer successful.
Transfer
failed
Check if the memory cassette is properly
installed.

Mitsubishi FX3U Series Specifications

General

Model	FX3U Series
Program Memory	64k steps
Execution Speed	0.065 μs/basic instruction
Type	PLC (Programmable Logic Controller)
Power Supply	100-240V AC
I/O Points	Up to 384
Communication	USB
Expansion	Supported via expansion modules
High-Speed Counters	Up to 6 channels
Analog Input/Output	Available via expansion modules
Temperature Range	0 to 55°C
Programming Language	Ladder Logic, Structured Text
Built-in Functions	PID control
Humidity	5 to 95% (non-condensing)