Khởi động nguội cho đèn LED ngoài trời: Bộ nguồn và kiểm tra hệ thống

Define what happens when power returns

A screen already operating generates heat. After a long outage, the cabinet, control box and power supply can approach the surrounding temperature. State whether the display must resume immediately or may warm up before playback. A storage rating answers neither question.

Select the power route for the ordered cabinet

Hình vuông chuẩn can use the optional Megmeet MCP300WS-4.5A-B. Its power-supply specification allows startup and operation at −40°C. Output depends on the input and thermal conditions; the unit’s nominal 4.5 V, 60 A rating is not available unconditionally across its entire input range.

vuông chuyên nghiệp uses the Xingxiu dual-voltage power solution for −40°C startup. That is a power configuration, not a blanket cold-start rating for every complete display. Select Pro if its cabinet or power platform fits the project; a low-temperature requirement can also be evaluated on standard Square.

Plan the heated-control-box option

For a Pro project with an extreme ambient requirement of −50°C, a thermostatically controlled heater can be added inside the control box. Agree where temperature is sensed, what equipment is energised first and when the controller permits playback. The heater option is a design route; the time until the first stable image is a separate acceptance item.

Verify the screen as installed

Record the final bill of materials, temperature and soak period, supply conditions, controller recovery and first stable image. If the owner requires unattended recovery, repeat the agreed shutdown and restart sequence with the production configuration. Record the result for the assembled system separately from any component-level test report.

Đề tài

Khởi động nguội cho đèn LED ngoài trời: Bộ nguồn và kiểm tra hệ thống

Lựa chọn

“It runs in winter” and “it restarts after a long winter outage” describe different requirements. For an unattended outdoor screen, put the lowest required restart temperature, expected outage duration and available site supply in the quotation request. Then select the power and enclosure configuration against that event.

Cấu hình

Quảng trường 960