Beijer E300 04380

Core Technical Specifications

1. Display & Touch Screen Parameters
   • Display Size: 4.3-inch TFT color LCD screen
   • Display Resolution: 480 × 272 pixel WVGA
   • Backlight Type: LED constant current backlight, service life ≥50,000 hours
   • Touch Panel: 4-wire analog resistive touch screen, support glove operation, touch response time ≤100 ms
   • Front Panel Protection: IP65 / NEMA 4X sealed front panel against dust and water spray
2. Electrical Communication Parameters
   • Rated Power Supply: 24 VDC ±20%, power consumption maximum 12 W
   • Serial Interfaces: RS232, RS422/RS485 integrated terminal block, support Modbus RTU, Mitsubishi FX, Siemens PPI protocols
   • Ethernet Port: 10/100 Mbps RJ45 Ethernet, Modbus TCP/IP communication
   • Real-Time Clock: Built-in backup lithium battery RTC, 5 years continuous clock maintenance without external power
   • Program Storage: 128 MB internal flash memory, support USB disk project upload/download
3. Mechanical & Environmental Parameters
   • Cabinet Cutout Mounting Size: 136 mm × 78 mm standard cabinet door opening dimension
   • Overall Panel Thickness: 62 mm rear protrusion depth
   • Operating Temperature: 0°C ~ +50°C continuous operation
   • Storage Temperature: -20°C ~ +70°C
   • Relative Humidity: 10% ~ 90% non-condensing
   • Net Weight: 420 g

Function Features

• Working Principle: Industrial embedded ARM microprocessor runs Beijer HMI runtime operating system; touch screen collects operator touch coordinate signals, converts to operation instructions to transmit to connected PLC via serial/Ethernet bus; simultaneously receives real-time PLC register data, refreshes graphical display, alarm window, production counter and parameter setting interface on TFT screen in real time
• Multi-language runtime support, Chinese, English, German, Spanish multi-language switching without project re-download
• Built-in alarm logging function, store up to 10,000 historical fault alarm records with timestamp
• Recipe data storage, support 99 groups of equipment production parameter recipes stored in internal flash memory
• USB host port for external U disk program backup, firmware upgrade and data export
• Password multi-level access authority management, operator, maintenance, administrator three-tier permission lock
• Front panel silicone sealing gasket, fully sealed cabinet door installation to prevent workshop dust and cooling water ingress
• Wide voltage power supply tolerance, stable operation under industrial site power voltage fluctuation

Material Composition

• Front Panel Frame: Matte black ABS plastic with anti-scratch hard coating
• Touch Screen Surface Layer: Anti-glare PET protective film, scratch-resistant surface hardness 3H
• LCD Display Module: Industrial wide-temperature TFT liquid crystal screen with LED backlight strip
• Rear Housing: Flame-retardant PC plastic enclosure, internal EMI shielding metal film
• Sealing Gasket: Food-grade silicone rubber compression sealing strip for IP65 water/dust protection
• Internal Mainboard: Low power consumption ARM embedded industrial control PCB with conformal insulation coating

Structural Characteristics

• Cabinet door embedded cutout mounting structure, equipped with four plastic tightening mounting clamps fixed on rear housing
• Front panel integrated single-piece frame with seamless silicone sealing edge
• Rear panel centralized wiring area: power terminal block, serial communication terminal block, RJ45 Ethernet port, USB host port layout separated by shielding partition
• Built-in replaceable lithium RTC battery compartment on rear housing for easy clock battery replacement without disassembly
• Rear heat dissipation grid natural ventilation design without cooling fan
• Compact thin rear protrusion thickness, suitable for thin cabinet door installation with limited rear space

Application Scenarios

• Small automatic packaging machine operation and parameter monitoring
• Food beverage filling, labeling, sealing production line local control panel
• Textile small knitting, embroidery machine operator touch screen
• Plastic small injection molding machine auxiliary operation station
• Agricultural automatic processing equipment, grain sorting machinery local HMI
• Water treatment small pump station distributed local monitoring panels

Installation Requirements

1. Process cabinet door cutout strictly according to 136 × 78 mm dimension, cutout edge burrs fully polished smooth to avoid damaging sealing gasket
2. Install four rear mounting clamps evenly, tighten thumb screws to torque 0.7 Nm ±0.2 Nm to maintain uniform sealing pressure around front panel
3. Cabinet door mounting surface flatness error ≤1 mm overall, surface roughness Ra <1.6 μm to guarantee IP65 sealing performance
4. All communication and power cables twisted pair wiring, pass cable through ferrite core (3 turns) to suppress electromagnetic noise from inverters
5. Separate short grounding braid connect HMI rear ground terminal to cabinet door equipotential grounding point
6. Avoid installation position with direct long-term sunlight irradiation; ultraviolet radiation accelerates touch screen film aging

Operation & Maintenance Precautions

1. Clean touch screen surface with soft microfiber cloth and neutral water detergent only; alcohol, acetone solvent will corrode anti-glare coating
2. Replace internal RTC lithium battery every 4–5 years to prevent real-time clock data loss after power failure
3. Do not plug/unplug USB disk under heavy production vibration environment; loose USB connection causes project data corruption
4. When communication failure occurs, check common grounding between HMI and PLC to eliminate ground potential difference interference
5. Backlight brightness will gradually attenuate after long-term operation; replace display module when screen brightness is lower than 50% original luminance
6. Avoid splashing strong alkaline/acidic cleaning liquid directly onto front panel during equipment cleaning