Description
Facilitating high-resolution plant-floor visualization, the Mitsubishi Electric GT1275-VNBA functions as an industrial operator interface within the GOT1000 platform. This 10.4-inch TFT liquid crystal display provides sharp graphical monitoring and robust control capabilities over diverse automated systems. Operating on a universal 100 to 240VAC power supply, the unit integrates essential fieldbus and Ethernet communication options directly onto its main board, making it a reliable choice for monitoring complex industrial machinery and distributed assembly operations.
Features
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High-Contrast Display: 10.4-inch TFT color LCD screen displaying 256 colors with a clear 640 x 480 pixel VGA resolution.
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Versatile Power Compatibility: Accepts wide-range AC input from 100 to 240VAC (50/60Hz) to simplify integration across global regional grids.
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Multi-Port Connectivity: Built-in Ethernet, RS-422/485, and RS-232 interfaces accommodate simultaneous multi-channel controller communication.
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Data Management: Integrated SD memory card slot and USB port permit rapid project transfer, logging, and OS backups.
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Industrial Durability: Front-panel rating matching IP67F environmental standards provides protection against dust, water ingress, and oil spray.
Applications
- Automotive assembly and robotic workcell control panels.
- Water and wastewater treatment plant visualization interfaces.
- Packaging, food processing, and material handling machinery.
- Distributed PLC network monitoring in central control rooms.
Technical Specifications
| Parameter |
Specification Value |
| Manufacturer |
Mitsubishi Electric |
| Model Number |
GT1275-VNBA |
| Series |
GOT1000 (GT12 Series) |
| Display Technology |
TFT Color LCD |
| Screen Size |
10.4 inches (diagonal) |
| Resolution |
640 x 480 pixels (VGA) |
| Display Colors |
256 colors |
| Input Power Supply |
100 to 240VAC (+10%, -15%) |
| Frequency Rating |
50 / 60 Hz (+/-5%) |
| Power Consumption |
41VA or less (at maximum load) |
| Inrush Current |
40A or less (for 4 ms at max load) |
| Touch Panel Type |
Analog resistive |
| Operating Temperature |
0 to 50 degC |
| Protection Rating |
IP67F (front face when panel-mounted) |
| Net Hardware Weight |
2.3 kg (5.07 lbs) |
| Shipping Weight (Calculated) |
3.5 kg |
| Package Dimensions (Calculated) |
340 mm x 280 mm x 125 mm |
Connections and Interfaces
| Interface / Connector |
Function / Circuit Assignment |
| Ethernet (RJ45) |
10BASE-T/100BASE-TX interface for high-speed PLC data link and diagnostic network configurations |
| RS-422/485 (D-Sub 9-Pin Female) |
Direct connection to FX series, Q series, or third-party serial controllers and microcontrollers |
| RS-232 (D-Sub 9-Pin Male) |
Connection port for bar code readers, personal computers, or specialized serial hardware |
| USB Mini-B (Device) |
Dedicated PC transfer interface for application screen creation and testing via GT Works3 |
| USB Type A (Host) |
External storage connection for memory drives to record trends, transfer boot parameters, or load projects |
| SD Card Slot |
Expansion storage accepting SD/SDHC media card for immediate local program backups and historical logging |
Alternative Models & Compatibility
The GT1275-VNBA serves as an excellent upgrade path for older GT1175 series devices. While sharing similar panel cutout dimensions, the GT1275 integrates built-in Ethernet, removing the need for auxiliary serial-to-Ethernet converters. Upgrading projects from legacy software tools is fully supported inside GT Designer3, ensuring low-risk software migration.
Application Pitfalls & Engineering Notes
To prevent thermal throttling and maintain display longevity, avoid installing the HMI in direct sunlight or within high-temperature enclosures exceeding 50 degC. When mounting inside completely closed panels, provide at least 100 mm of clear space above and below the rear ventilation slots to allow natural convective heat dissipation.
Commissioning & Wiring Tips
Always ensure that the functional ground (FG) terminal on the AC power block is connected using a dedicated ground lead (minimum 2 mm squared wire) directly to a unified machine ground. This reduces local electromagnetic interference (EMI) from neighboring variable frequency drives (VFDs) which can otherwise interfere with the HMI analog touch panel sensitivity.
Installation Guidelines
CRITICAL WARNING
Isolate and lock out all upstream electrical power supplies before performing installation, mounting, or terminal wiring. Verify that no residual voltage remains using an electrical tester to prevent severe electrical shock or damage to the unit's internal circuitry.
1
Prepare Panel Cutout
Create a panel cutout matching the standard dimensions of 289 mm x 200 mm, ensuring the panel thickness is between 2.0 mm and 4.0 mm.
2
Check Panel Gasket
Verify that the rubber water-resistant gasket is securely seated in its channel around the back bezel of the HMI unit prior to insertion.
3
Insert and Secure Mounts
Insert the HMI into the cutout from the front of the panel. Fasten the provided mounting brackets to the rear casing, tightening the screws to a precise torque of 0.36 to 0.48 N.m to ensure a dust-tight, waterproof seal.
4
Connect Power Terminals
Route 100-240VAC power lines through a class-D grounded distribution point. Connect securely to the terminals on the back, and ground the functional ground terminal immediately.