Mitsubishi MELSEC User Manual

12
TROUBLESHOOTING
12.2 Troubleshooting Flowchart
12.2.2 Flowchart for when the ERR terminal (negative logic) is off (opened)
12 - 3
9
EMC AND LOW VOLTAGE DIRECTIVES
10
LOADING AND INSTALLATION
11
MAINTENANCE AND INSPECTION
12
TROUBLESHOOTING APPENDICES INDEX
12.2.2 Flowchart for when the ERR terminal (negative logic) is off (opened)
The following shows the flowchart for when the "ERR terminal" is off (opened) at power-on
or during operation of the PLC.
The ERR terminal has
turned off (opened).
Remove the corresponding power
supply module, and mount it to the
normal base unit.
(Do not mount any modules other
than the power supply module.)
Mount the corresponding power
supply module to the original base
unit again, and remove all modules
other than the power supply module
from the base unit.
NO
Flashing (CPU
module is in stop
error)
Conduct PLC diagnostics with GX
Developer to check error details and take
action according to the details.
On
The corresponding power supply module is
faulty
(Replace it with a normal power supply
module).
How is the "ERR."
LED of the CPU
module?
Not flashing
YES
How is the "ALIVE"
LED of the CPU
module?
Off
Supply power of proper voltage.
Is power supplied?
Is the power supply
voltage proper?
Off
On
How is the "POWER" LED
of the power supply
module?
(To next 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)