E4860 NEM-500 (EN)

E4860 Embedded Switching Power Supply User Manual XIAMEN EVADA ELECTRONICS CO., LTD NO.10, XINYANG ROAD, HAICANG DISTRICT, XIAMEN CITY, FUJIAN PROVINCE, CHINA

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E4860 Embedded Switching Power Supply Table of contents 1.1 E4860 System configuration ........................................................... 2 1.2 E4860 technical performance ......................................................... 2 1.2.1 Basic working principle ......................................................... 2 1.2.2 Performance index ................................................................. 2 1.3 E4860 system installation ............................................................... 5 1.3.1 Electrical connection between the main cabinet and the outside .............................................................................................

6 1.3.2 Installation inspection ............................................................ 8 1.4 Installation instructions of monitoring module and rectifier module ................................................................................................... 8 1.5 Monitoring module maintenance .................................................... 9 1.6 Rectifier module alarm signal indication ........................................ 9 1 / 11

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E4860 Embedded Switching Power Supply Chapter I E4860 1.1 E4860 System configuration Standard configuration (1) Two 4830 rectifier modules; (2) 1 monitoring module; (3) E4860 output part DC power distribution: 1 channel (battery) and 1 channel (load) 1.2 E4860 technical performance E4860 is suitable for power supply of small program-controlled switchboard, access network, transmission equipment, mobile communication, satellite communication ground station, microwave communication, and other communication equipment.

1.2.1 Basic working principle When the system power supply is normal, various parameters of the rectifier module and the power distribution unit are controlled by the monitoring module and work according to the preset parameters or user commands. If there is a mains failure, the system will be powered by the battery. With the discharge of the battery, the voltage of the battery begins to drop. When the battery voltage is lower than the alarm valve 46V (adjustable) on the position machine, the monitoring module will report an alarm signal. If it is lower than 43V, the load output will be directly turned off, and the whole machine will not work.

When the external mains supply is restored, the system resumes normal operation (the above monitoring data is the default value of the system, and the user can set it again through the background). If the operating ambient temperature of the power supply system is ≥ 55 ℃, Power systems need to reduce power output. 1.2.2 Performance index (1) AC input Rated input voltage: 220VAC Input voltage range: 90 ~ 280VAC Maximum input current: 30 A

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E4860 Embedded Switching Power Supply Frequency: 50Hz; 45~63HZ Input power factor: ≥ 0.98 (2) Battery input The positive and negative poles of the battery pack are connected in parallel with the DC output of the rectifier module (with the same polarity), and work in floating charge or equalized charge state. (3) DC output Standard voltage: 54VDC Voltage adjustable range: 42V ~ 58V DC output current (full configuration): 60 A (176 ~ 290 VAC) 33A （ 151 ～ 175VAC ） 22A （ 90 ～ 150VAC ） DC output: 1 channel (load); 1 channel (battery) (4) DC output noise Telephone weighing noise: ≤2mV Broadband noise voltage: ≤100mV (3.4KHz ～ 150KHz) ≤30mV (150KHz ～ 30MHz) Peak-to-peak noise voltage:

≤ 200mV (within 20 MHz) (5) Voltage stabilization accuracy of power supply system: ≤±1 ％ Load regulation rate of power supply system: ≤ ± 1% Source regulation rate of power supply system: ≤ ± 1% (6) Working efficiency: ≥ 91% (220Vac input) ≥ 87% (110Vac input) (7) Other characteristics: Dynamic response overshoot amplitude: ≤ ± 5% Dynamic response recovery time: ≥ 10ms Current unbalance: ≤ ± 5% (8) Insulation resistance: Insulation resistance between DC part, AC part and enclosures ≥ 10 MΩ (test voltage 500Vdc) Leakage current 3 / 11

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