1. Introduction
This manual provides detailed instructions for the Coolmay QM3G-100FH-44MT HMI PLC All-in-One machine. This device integrates a Human Machine Interface (HMI) and a Programmable Logic Controller (PLC) into a single unit, designed for industrial automation applications. It offers a 10.1-inch touch screen for user interaction and a robust PLC for control logic.
The QM3G-100FH-44MT model features 24 digital inputs (DI) and 20 digital outputs (DO) with transistor outputs. It includes 1 RS232 and 1 RS485 communication port, 4 high-speed pulse outputs (100KHz, Y0-Y3), and 4 high-speed pulse outputs (10KHz, Y4-Y7). Optional analog input and output functions are available and must be purchased separately.
Figure 1: Front view of the QM3G-100FH HMI PLC with a sample interface.
Figure 2: Rear view of the QM3G-100FH HMI PLC, highlighting communication ports and I/O terminals.
2. Product Features
- Integrated Design: Combines HMI and PLC functionalities in a single unit for streamlined control systems.
- High Compatibility: HMI is compatible with CoolmayHMI programming software. PLC is compatible with Mitsubishi software GX Developer (versions 8.52/8.86) and GX Works2.
- Fast Operation: HMI operates quickly, ensuring responsive user interaction.
- High Integration: Features 24 digital inputs and 20 digital transistor outputs.
- High-Speed Capabilities: Supports multiple high-speed counting and high-speed pulse outputs with independent acceleration and deceleration, reaching a total frequency of up to 400KHz.
- Memory: 32K steps program capacity and 32K power-off retentive registers.
- Advanced Control: Supports interrupt, linear and circular interpolation, and PID self-adjusting functions.
- Communication: Equipped with 1 RS232 and 1 RS485 port. Optional Ethernet port and WIFI are available.
- PID Auto-Tuning: Built-in support for PID auto-tuning.
- PWM Modulation: Supports Pulse Width Modulation.
3. Specifications
General Specifications (QM3G-100FH)
| Parameter | Value |
|---|---|
| Display Screen | 10.1" TFT LCD screen |
| Resolution (pixels) | 1024*600 |
| Dimension | 275*194*36mm |
| Cutout size | 262*180mm |
| Display size | 222*125mm |
| Brightness | 300cd/m² |
| Contrast ratio | 400:1 |
| Backlight | LED |
| Display color | 65536 true color |
| Touch type | 4-wire resistive panel |
| Touch accuracy | Length(X)±1.5% Width(Y)±1.5% |
| ROM (Flash) | NOR Flash 16MB |
| RAM | 64MB |
| CPU | 408MHz |
| USB Device | USB 2.0 (Type-C) |
| Serial port | RS-232 |
PLC Specifications (QM3G-100FH-44MT)
| Parameter | Value |
|---|---|
| I/O Type | Transistor output: low level NPN, COM connected to negative; Relay output: normally open dry contact. Input: passive NPN, common terminal isolation. |
| DO Type | Relay MR or MOS Relay output max load 5A/ MOS output max load 2A. Relay MR or transistor MT. Y0-Y3 are MOS or mixed (MR/MT) relay output max load 5A/ transistor output max load 500mA. |
| High-speed counting | 6 single-phase 60KHz or 2 AB (Z) phase 60KHz + 1 AB phase 10KHz |
| High-speed pulse | 8 channels: Y0-Y3 is 100KHz, Y4-Y7 is 10KHz. high-speed counting + high-speed pulse ≤480KHz |
| Analog input type (optional) | E/K/S/T/J thermocouple (support negative temperature)/PT100/PT1000/NTC(NTC10K/NTC50K/NTC100K)/0-10V/0-5V/0-20mA/4-20mA or mixed (7 inch and 10 inch optional: 0-5V and -10V). |
| Analog output type (optional) | 0-10V/0-5V/0-20mA/4-20mA or mixed. Optional analog output: 0-10V/0-5V/0-20mA/4-20mA/0-5V/-10V~10V optional (each negative voltage occupies two DA). |
| COM port | Optional 1 RS485 or 2 RS485 COM ports (one of the RS485 is changed from the default 232); Optional WIFI (will occupy the default port 232). Optional CAN port (2.0A/B), network port. WIFI (will occupy the default 232 port). |
Figure 3: Dimensional drawing for QM3G-100FH, with cutout size 262x180mm.
4. Setup and Installation
4.1 Unpacking
Carefully unpack the HMI PLC unit and verify that all components are present:
- 1x HMI PLC all-in-one unit (QM3G-100FH-44MT)
- 1x Type-C programming cable
4.2 Mounting
The QM3G-100FH-44MT is designed for panel mounting. Ensure the cutout size in your panel is 262mm x 180mm. Secure the unit using the provided mounting clips or screws.
4.3 Power Supply
The unit requires a DC24V power supply. Connect the positive (+) and negative (-) terminals of the power supply to the corresponding terminals on the HMI PLC. Ensure the power supply is stable and within the specified voltage range.
Figure 4: Example wiring setup for programming and power supply connection.
5. Wiring Diagrams
Proper wiring is crucial for the safe and correct operation of the HMI PLC. Refer to the following diagrams for input, output, and analog wiring.
5.1 Digital Input Wiring (Diagram 10)
The PLC digital input is a passive NPN type. Connect the positive pole of the power supply to the positive pole of the transmitter, the negative pole of the transmitter to the input terminal, and the negative pole of the power supply to the common terminal of the PLC. The input signal is isolated from the power supply.
Figure 5: Diagram 10 Input wiring.
5.2 Relay Output Equivalent Circuit (Diagram 11)
This diagram illustrates the equivalent circuit for relay outputs. Each group of outputs is electrically isolated, and different groups of outputs can be connected to different voltages.
Figure 6: Diagram 11 Relay output equivalent circuit.
5.3 Transistor Output Equivalent Circuit (Diagram 12)
This diagram shows the equivalent circuit for transistor outputs. The output terminals are several groups, each group is electrically isolated. Different groups of outputs cannot be connected to different power circuits.
Figure 7: Diagram 12 Transistor output equivalent circuit.
5.4 Inductive Load Absorption Circuit Schematic (Diagram 13)
When connecting an inductive load, an absorption circuit is recommended to protect the output components. This diagram provides a schematic for such a circuit.
Figure 8: Diagram 13 Inductive load absorption circuit schematic.
5.5 Pulse Output Wiring Diagram (Diagram 14)
This diagram illustrates the internal circuit for pulse output wiring. Note that the internal circuit in all diagrams is for reference only.
Figure 9: Diagram 14 Pulse output wiring diagram.
5.6 PLC Analog Wiring (Diagram 15)
This diagram details the wiring for PLC analog inputs and outputs. Analog input is 12-bit precision, supporting TO instructions or register direct assignment operation. Analog output register (DA) means analog output precision is 12 bit; support TO instructions or register direct assignment operation.
Figure 10: Diagram 15 PLC analog wiring.
6. Operation
The HMI PLC unit operates through its integrated touch screen. The interface allows for monitoring, control, and parameter adjustment of connected industrial processes. Specific operational procedures will depend on the custom program loaded onto the device.
Video 1: Product demonstration showing the HMI PLC interface and touch screen interaction.
7. Programming
The HMI PLC requires programming for both the HMI interface and the PLC logic. The unit comes with a Type-C programming cable for this purpose.
7.1 HMI Programming
Use CoolmayHMI programming software to design and upload the user interface to the HMI part of the device.
7.2 PLC Programming
The PLC part is compatible with Mitsubishi programming software such as GX Developer (versions 8.52/8.86) and GX Works2. Use these tools to develop and upload your control logic.
7.3 Programming Reference
Refer to the programming reference for details on maximum digital points, auxiliary relays, timers, counters, data registers, and other programming elements.
Figure 11: Programming Reference and Statement of Power-down Save.
8. Maintenance
Regular maintenance ensures the longevity and reliable operation of your HMI PLC. Always disconnect power before performing any maintenance.
- Cleaning: Keep the screen and casing clean. Use a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Wiring Inspection: Periodically check all wiring connections for tightness and signs of wear or damage. Loose wiring can cause malfunctions or electrical hazards.
- Environmental Conditions: Ensure the operating environment adheres to the specified temperature and humidity ranges to prevent damage.
- Battery: The real-time clock uses a rechargeable battery to ensure that the clock is current. All power-off hold functions must ensure DC24V. The voltage after the source is loaded is 23V or more, and the PLC power-on time is longer than 2 minutes, otherwise the power-off function will be abnormal.
9. Troubleshooting
This section provides solutions to common issues you might encounter with your HMI PLC.
9.1 General Troubleshooting Tips
- Power Supply: Ensure the power supply voltage is stable and within the specified range (DC24V). Incorrect power can cause malfunctions.
- Wiring: Double-check all wiring connections. Incorrect wiring can lead to malfunctions or damage.
- Software Compatibility: Ensure you are using the correct and compatible software versions for HMI and PLC programming.
- Communication Issues: If communication fails, verify cable connections, port settings, and ensure the correct PLC type is selected for programming.
9.2 FAQ
- Q: Which PLC is used for communication and programming?
- A: The PLC part of the QM3G-100FH-44MT is compatible with Mitsubishi programming software such as GX Developer (versions 8.52/8.86) and GX Works2 for programming and communication.
10. User Tips
Based on user feedback and best practices, consider the following tips for optimal performance and longevity of your HMI PLC:
- Power Supply Stability: Always use a regular power supply within the specified voltage range (DC24V). An unstable power supply can cause malfunctions.
- Secure Connections: Before installing or wiring, tighten all screws and clamp guides to avoid falling or loose connections, which can cause electric shock or circuit short.
- Proper Grounding: Ensure proper grounding to prevent electromagnetic interference and protect against static electricity.
- Cable Management: Keep signal and power cables separated and avoid running them in parallel to prevent interference.
- Input/Output Voltage: The digital input is an externally powered DC24V leakage type (passive NPN). Ensure the input signal is isolated from the power supply.
- Common Terminal: When using the product, connect the common terminal to the positive pole of the external power supply.
- Product Modification: Do not disassemble or modify the product without authorization, as it may cause damage or malfunction.
- Disposal: If the product is damaged or needs to be replaced, dispose of it responsibly according to local regulations.
11. Warranty and Support
For warranty information and technical support, please contact your vendor or the manufacturer directly. Coolmay provides technical customer service and remote assistance for their products.
