Designing H-Bridge Motor Drives Without Shoot-Through
A practical guide to H-bridge motor drives covering switching states, dead time, inductive current paths, PWM choices, protection, PCB layout, PLC interfacing, and staged commissioning tests.
Manufacturer: Mitsubishi Electric
Product No.: GT1265-VNBA
Country of origin:United States
Product Type: HMI Panels
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
Designed to serve as a robust human-machine interface within industrial control networks, the Mitsubishi Electric GT1265-VNBA provides high-resolution visualization and operator control for automated machinery. This GOT1000 Series terminal features an 8.4-inch TFT color LCD display with a resolution of 640 x 480 pixels, delivering clear graphical representation of machine states, alarms, and real-time process data.
| Parameter | Specification |
|---|---|
| Display Type | TFT Color LCD |
| Screen Size | 8.4 inches |
| Resolution | 640 x 480 dots |
| Display Colors | 256 colors |
| Effective Display Area | 170.9 (W) x 128.2 (H) mm |
| Touch Panel Type | Analog resistive (minimum 2 x 2 dots per key) |
| Backlight | Replaceable CCFL (1 tube) |
| Input Voltage | 100 to 240 V AC (+10%, -15%) |
| Power Consumption | 41 VA or less |
| External Dimensions | 241 (W) x 190 (H) x 58 (D) mm |
| Panel Cut Dimensions | 227 (W) x 176 (H) mm |
| Operating Temperature | 0 to 50 degC |
| Storage Temperature | -20 to 60 degC |
| Protection Rating | IP67f (front panel when mounted) |
| Net Weight | 1.7 kg |
| Shipping Weight | 8.0 kg (including protective packaging) |
| Manufacturer | Mitsubishi Electric |
| Country of Origin | Japan |
| Interface Port | Function / Assignment |
|---|---|
| RS-232 | Connection to PLC, PC, or serial printer (9-pin D-sub male) |
| RS-422/485 | Connection to PLC or controller (9-pin D-sub female) |
| USB Device | Mini-B port for screen data transfer and OS installation |
| USB Host | Type-A port for USB memory storage devices |
| Power Input | L, N, and Ground screw terminals (100-240V AC) |
The GT1265-VNBA is a key component of the legacy GOT1000 platform. When migrating from older GOT900 series terminals, screen projects can be converted using Mitsubishi GT Works3 software. For modern system upgrades, the GT2508 series serves as the direct functional successor, offering enhanced processing speeds and capacitive multi-touch displays.
The CCFL backlight in this unit has a nominal operating life of approximately 50,000 hours before brightness drops to 50%. In high-temperature environments exceeding 40 degC, backlight degradation accelerates. Ensure the enclosure has adequate ventilation to maintain the internal panel temperature below 50 degC.
To prevent communication dropouts and electrical noise interference on the RS-422/485 serial lines, always use shielded twisted-pair cabling. Connect the terminal's functional ground (FG) to a dedicated Class D ground (100 ohms or less resistance) and ensure it is physically isolated from high-current motor drive grounds.
Before starting installation, mounting, or wiring, ensure all external power sources feeding the HMI and connected PLCs are completely de-energized. Failure to isolate power can result in severe electrical shock, hardware damage, or erratic system startup.
Global Express Shipping
Returns & Warranty

Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|