Mitsubishi MELSEC User Manual

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12.2 Troubleshooting Flowchart
12.2.2 Flowchart for when the ERR terminal (negative logic) is off (opened)
12
TROUBLESHOOTING
Errors that can be detected by the ERR. terminal
The following shows the errors that can be detected by the ERR. terminal of the
power supply module.
Figure 12.2 Flowchart for when the ERR terminal turns off
Table12.1 Errors that can be detected by the ERR terminal of a power supply module
Base unit
CPU module
QS001CPU
Main base unit (QS034B)
AC power not input, power supply module fuse blown and CPU module stop error
(including reset) can be detected.
Check the sum of internal current
consumptions of the modules that
comprise the system.
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.
For the module that does not operate,
please contact your local nearest
Mitsubishi or representative, explaining
a detailed description of the problem.
Off
Reexamine the system configuration to make the
total current less than the rated current consumption
of one power supply module.
On
The base unit that includes the corresponding
power supply module is faulty.
(Change it for a normal base unit.)
Yes
No
Does the total
current exceed the rated
current consumption of one power
supply module?
How is the "POWER"
LED of the power supply
module?
(From previous page)

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)