Tan Long Factory Standard Technical Specifications Matrix
1. Unmanned Automated Facility Operation
Tan Long PLC automation panels eliminate manual switchgear operations:
• Automatically validates pre-start interlocks (oil differential, suction pressure, winding temperature) before motor start.
• Modulates capacity slide valves smoothly in discrete steps, avoiding grid power surges.
• Automatically shifts day/night operating setpoints to capitalize on off-peak electricity tariffs.
2. Intuitive Bilingual Graphic HMI Interface
The high-resolution HMI screen renders real-time graphic displays of thermodynamic cycles:
• Displays intuitive P&ID schematics with dynamic color status codes (Green: Running, Red: Alarm Trip, Grey: Standby).
• Configures chamber temperatures, defrost intervals, and alarm deadbands with intuitive touch gestures.
• Records chronological fault history (high pressure trips, phase loss, overload) for rapid root-cause diagnosis.
3. Integrated VFD Inverter Speed Control
Rather than direct-on-line (DOL) starting drawing 6 - 7x inrush currents that cause voltage sags, Schneider/Danfoss inverters enable soft starts with inrush current under 1.0x FLA, tripling motor mechanical lifespan and cutting monthly energy bills.
Competitive Advantages & Market Comparison Matrix
Technical comparison between genuine Tan Long refrigeration equipment manufactured at Duc Hoa 1 Industrial Park versus substandard market alternatives:
Tan Long Equipment Advantages
- ✓ 100% genuine components from Schneider, Siemens, Mitsubishi, and Danfoss with verified CO/CQ
- ✓ Precision wire termination and thermal labeling conforming strictly to EPLAN electromechanical drawings
- ✓ Engineered algorithms for lead-lag run-time balancing, saving 15% electrical power
- ✓ Native Ethernet ports ready for remote telemetry over PC or mobile devices
Drawbacks of Manual / Used Imported Systems
- ✗ Substandard workshops use counterfeit components with sticky contactors that cause motor burnouts
- ✗ Messy unnumbered wiring makes troubleshooting hazardous and time-consuming during outages
- ✗ Relying on inaccurate mechanical thermostats incapable of smart demand-defrost automation
- ✗ Flimsy corroded enclosures allowing moisture to short-circuit internal electronics
Frequently Asked Questions (FAQs) by Engineers & Investors
Q1: Does the PLC lose its programming during sudden factory power outages?
Never. Control programs are stored in non-volatile flash memory independent of backup batteries. Upon power restoration, the system initiates an automated safe restart to previous operational setpoints.
Q2: Does Tan Long deliver complete electrical wiring schematics with the panel?
Yes. Every Tan Long control panel is accompanied by comprehensive EPLAN schematics, full bill of materials with part numbers, and complete operator manuals.
