Mitsubishi MELSEC User Manual

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12.2 Troubleshooting Flowchart
12.2.3 Flowchart for when the "POWER" LED turns off
12
TROUBLESHOOTING
Figure 12.3 Flowchart for when the "POWER" LED is off
Does the
total current exceed the
rated output current of the power
supply module?
Reexamine the system configuration
to make the total current less than
the rated output current of the power
supply module
Hardware fault
Execute operation checks in due
order, starting with the minimum
system.
For the module that does not
operate, please contact your local
Mitsubishi service center or
representative, explaining a detailed
description of the problem.
Check the sum of internal current
consumptions of the modules that
comprise the system.
No
Yes
(From previous page)
Hardware error of a module other
than the power supply module and
base unit
Install modules to the base unit one
by one and execute operation checks
in due order.
If the module will not work ,
please consalt your local
nearest Mitsubishi or
representative, explaining a detailed
description of the problem.

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)