Reynolds Battery official website direct a basic concept, Mains normal: normal electricity refers to the mains voltage and mains frequency are normal. 2, mains voltage is normal: the mains voltage between 160 ~ 280V, regarded as normal mains voltage input. 3, the normal mains frequency: mains frequency between 47 ~ 53HZ, and the frequency rate of change is less than 1HZ / sec, regarded as normal mains frequency. 4, mains inverter status: mains input is normal, UPS working condition at AC → DC → AC time. 5, battery inverter status: mains input error, UPS BATTERY → AC working condition at the time. 6, CPU AC voltage sampling signal: AC voltage by dividing, blocking, full-wave rectifier, a limiter, is supplied CPU A / D-converted signal. There mains voltage sampling signal and inverter circuit voltage sampling signal into two parts on UPS. 7, zero generator: AC sine wave through the exchange of operational amplifier differential amplifier into a square wave signal, and then filter out high frequency harmonics and limiting post, gave CPU. CPU by the falling edge of a square wave (sine wave corresponding to a zero crossing) is detected, the calculated frequency and phase of the sine wave. UPS has mains zero zero generator and inverter generator two parts of the circuit. 8, BUS voltage: BUS voltage is supplied to the inverter DC voltage, UPS has positive and negative two-way BUS voltage, whose normal is 400V. Second, the control technology 1, slow boot when the UPS is powered on or reset the system (including the lifting of the overload, automatic restart, etc.), CPU controlled UPS inverter voltage gradually increased every 32ms to enhance the inverter voltage 3V, until 220V stops. 2, the voltage at the end of the chase slow boot, the inverter output voltage has not been cut to the external front, in order to prevent the mains poured into the UPS, the mains is normal, CPU control inverter voltage chase mains input voltage of the inverter voltage according to the mains voltage the level of every 128ms subtraction 3V. If the mains voltage is higher than 280V, only catch 280V; if the mains voltage drops below 160V, only catch 160V. 3, detection and control of the mains voltage CPU reads every 16ms mains voltage, when the voltage readings continuously lower than 160V mains or five times higher than 280V when the mains voltage input deemed abnormal; only when When the mains voltage reading between five consecutive Reply 170 ~ 270V, just think mains input to normal. When the mains input is normal, UPS inverter status to work in the city; when the mains voltage is lower than 160V or higher than 280V, UPS battery inverter into the state immediately; in order to prevent the mains switch back and forth, only when the electricity back to the When 170 ~ 270V, UPS inverter status was transferred to the mains. 4, detection and control purposes to detect the mains frequency mains frequency inverter is used as the basis for phase-locked by adjusting the zero crossing of the inverter inverter phase adjustment, so at the mains inverter output state and city basic electrical input the same frequency and phase. When the mains power on, UPS detects input mains frequency as the frequency of the inverter output; when the battery state of the boot, the frequency of the output frequency of the inverter output over time to set. When the mains is normal, perform lock, the inverter frequency to chase the mains frequency, the same frequency and then chase phase, complete with phase inverter and mains frequency inverter by change. After the lock, the inverter and the mains phase is less than 3 degrees, the frequency error is less than 0.01HZ. When the mains frequency is outside the range of 47 ~ 53HZ, UPS does not perform lock-in, and immediately transferred to the battery inverter state, only when the mains frequency response to 48 ~ 52HZ when, UPS then perform the lock and turn the mains inverter state. 5, the triangular wave generator CPU sent 38.4KHZ square wave, after the second operational amplifier via a divider circuit into a square wave 19.2KHZ, and then by integrating the integrator into a triangle wave. 6, the standard sine wave generator CPU sent out to an average of 128 points divided imitation sine wave, after second-order low-pass filter to generate standard sine wave. Original authentic factory direct, quality years. First-class service. The company pledges: industry-specific batteries, three-year warranty, ups uninterruptible power supply, five-year warranty. Reynolds battery maintenance cycle, maintenance items: Monthly maintenance 1. Thoroughly clean and maintain housing, clean the terminals and vent flow; 2. Check whether the deformation of the housing, if the terminal corrosion discoloration, whether leakage; 3. Measure and record the ambient temperature, the temperature of the battery casing and pole temperature; 4. Measure and record the total voltage of the battery pack, charging voltage drift or changes in the environment should adjust the charging parameters. 1. Repeat quarterly maintenance of the monthly maintenance; 2. Measure and record the single battery float voltage, float current and other parameters, and timely adjustments; 3. Check the connection part is loose, tighten the screws if loose should; 4 For a balanced battery charging time 24H. Annual maintenance 1. Repeat the quarterly maintenance; 2. Check the safety valve is loose, and tighten, but do not remove the safety valve; 3. Battery Pack to conduct a check of the actual load discharge test, release the rated capacity of 30 % ~ 40%. 1. Repeat three maintenance of the annual maintenance; 2. Make 10Hr capacity test, release 80% of the rated capacity. 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