Mitsubishi MELSEC User Manual

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12.2 Troubleshooting Flowchart
12.2.7 Flowchart for when the "ERR." LED turns on or flashes
12
TROUBLESHOOTING
(1) Flowchart for when "MODULE VERIFY ERROR" occurs
Error detection
Error detection
Error detection
Normal operation
Normal operation
Normal operation
The "MODULE VERIFY ERROR" has occurred.
Completed
YES
NO
Check the slot or base unit where
the error occurred with GX
Developer.
Has the
module on the
corresponding slot been
removed/mounted during
operation?
Reset the CPU module.
Has the "ERR." LED
turned off?
NO
Is the
module on the
corresponding slot
mounted properly?
Mount the module properly.
YES
NO
Has the "ERR." LED
turned off?
NO
Replace the
corresponding
module.
Replace the
CPU module.
Replace the base unit.
Hardware error
Please consult your local
Mitsubishi service center of
representative, explaining a
detailed description of the
problem.
YES
YES

Mitsubishi MELSEC Specifications

General

Category	Programmable Logic Controller (PLC)
Manufacturer	Mitsubishi Electric
Series	MELSEC
Programming Languages	Ladder Diagram (LD), Function Block Diagram (FBD), Structured Text (ST), Instruction List (IL), Sequential Function Chart (SFC)
Communication Protocols	Ethernet, CC-Link, RS-232, RS-485, USB, Profibus, Modbus
Model Series	FX, Q, L, iQ-R, iQ-F
Input Voltage	100-240V AC, 24V DC (varies by model)
Memory Capacity	Varies widely depending on the CPU module and series. Ranges from kilobytes to megabytes.
I/O Points	16 to 8192 points (varies by model)
Communication Ports	Ethernet, RS-232, RS-485, USB (varies by model)
Programming Software	GX Works2, GX Works3, GX Developer
Operating Temperature	0°C to 55°C
Storage Temperature	-25°C to 75°C
Humidity	5% to 95% (non-condensing)
Vibration Resistance	10 to 57Hz, 0.075mm amplitude; 57 to 150Hz, 9.8m/s² acceleration
Shock Resistance	147m/s², 3 times in each direction (X, Y, Z)
Protection Class	IP20 (varies by model)
CPU Processing Speed	0.02μs to 0.1μs per instruction (varies by model)