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What to do if the fuse broken detection occurs in Mitsubishi MELSEC Q?
If the fuse for the coincidence signal external output section has blown in your Mitsubishi Controller, it must be replaced by a qualified technician from the Service Center. Contact your branch office or distributor with a detailed description of the issue.
Why am I getting an overflow error on my Mitsubishi Controller?
An overflow error in your Mitsubishi Controller can occur if: 1) When a linear counter is in use, an add pulse is input beyond the current value of 2147483647. 2) When a linear counter is in use, a subtract pulse is input below the current value of -2147483647. To resolve this, preset the controller to clear the overflow error.
What to do if the input signal is not turned OFF on my Mitsubishi MELSEC Q?
If the input signal on your Mitsubishi Controller isn't turning OFF, it could be due to leakage current from the input switch. To resolve this, connect an appropriate resistor to lower the voltage across the input module terminals below the OFF voltage value. For AC input, it's recommended to use a CR constant with 0.1 to 47 F + 47 to 120 (1/2W). Another cause might be a limit switch with a neon lamp, in which case you can apply the same resistor solution or create an independent display circuit. Finally, leakage current from the wiring cable's line capacity could be the issue. The same resistor fix applies here, but note that leakage current isn't generated when the power supply is located on the input equipment side.
General| Series | MELSEC Q Series |
|---|---|
| Type | Modular PLC |
| Programming Software | GX Works2, GX Works3 |
| Category | Programmable Logic Controller (PLC) |
| I/O Modules | Digital I/O, Analog I/O, High-Speed Counter, Positioning |
| Communication | Ethernet, CC-Link |
| Programming Languages | Ladder Logic, Structured Text, Function Block Diagram, Sequential Function Chart, Instruction List |
| Memory | Flash Memory |
| I/O Points | Up to 4096 points (expandable with additional modules) |
| Power Supply | AC or DC power supply options available, depending on the base unit and modules. |
| Mounting | DIN rail mounting |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -25°C to 75°C |
| Humidity | 5% to 95% (non-condensing) |
| Vibration Resistance | 10 to 57 Hz, 0.075mm amplitude |
| Weight | Varies depending on the module, from a few grams to several kilograms. |
| Shock Resistance | 147 m/s² (3 times each in X, Y, Z directions) |
Describes the features of the C Controller module, including VxWorks, standard ROM, large data storage, and I/O control capabilities.
Explains device configuration, development environment connection, and system configuration overview for C Controller systems.
Details the base units, extension cables, power supply modules, and other components used with the C Controller module.
Provides the general specifications of the C Controller module, including operating ambient temperature, humidity, vibration, and shock resistance.
Lists the functions of the C Controller module, such as I/O module access, remote operation, and self-diagnostic functions.
Explains critical handling precautions for the C Controller module, including environment, installation, and connection safety.
Explains how base units and slots relate to I/O number assignment for the C Controller module.
Explains user memories (Standard ROM, Work RAM, Battery-backed-up RAM, CompactFlash) and system memory.
Details the product requirements for the development environment, including personal computer specifications and operating system.
Explains common operations for utilities, including starting, exiting, setting connection targets, and displaying help screens.
Outlines bus interface functions and MELSEC data link functions supplied with SW PVC-CCPU for accessing modules and CPUs.
Defines the multiple CPU system concept, explaining how multiple CPU modules work together for enhanced performance.
Explains system configuration for multiple CPU systems, including device compatibility and connection methods.
Details the mounting positions of CPU modules (C Controller, Basic QCPU, High Performance QCPU, Motion CPU) in a multiple CPU system.
Explains data communication methods using MELSEC data link functions between CPU modules, including auto refresh and shared memory.
Lists parameters required for multiple CPU system operation, highlighting setup necessity and consistency checks in the C Controller setting utility.
Provides specific precautions for using AnS series modules, including applicable I/O and special function modules and control CPU settings.
Provides fundamental steps for troubleshooting, including visual checks, fault verification, and narrowing down the error cause.
