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Выпала error w251 на частотном приводе M810-10402700E. Похожие приборы ATV61QC63N4, CIMRV7TC43P07, VFD2200F43A-G на вентиляции функционируют.
Значение нашел через rambler по запросу "Ремонт частотного преобразователя Altivar 71 plus atv71es5c40n4" prom-electric.ru/articles/1/855/ . Заменил выход.
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Высвечивается error er134 на преобразователе M810-06400470A. Другие устройства ATV71HU30Y, CIMR-L7Z44PO, GP102030-1M установленные на насосах работают.
Расшифровку нашел через гугл по запросу "SKiiP02NEC066V3" prom-electric.ru/media/SEMIKRON_DataSheet_SKiiP_02NEC066V3_25232310.pdf . Оказалось сгорел варистор.
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RS-232’s full ±5V outputs, chips are available with smaller output-voltage swings. The MAX3386E uses dual charge pumps and a low-dropout transmitter output stage to enables output voltage swings of ±5V or greater even when powered at +3V. The chip also has a Logic-level Supply input that enables interfacing the chip’s TTL/CMOS inputs and outputs directly to a UART or another component that has a supply voltage other than +3V. The MAX3218 operates from a single supply voltage of + 1.8V to +4.25V and has output voltage swings of ±5V or greater. The chip requires an external inductor to generate the positive voltage and uses a charge pump to generate the negative voltage. The MAX3316 operates from a single supply voltage of +2.25 to +3V and uses charge pumps to generate output voltage swings of ±3.7V. 52 Inside RS-232 Instead of requiring or generating their own negative voltage sources, Maxim/Dallas Semiconductor’s DS275 and DS276 borrow the voltage from the interface at the opposite end of the cable. Circuits that have access to higher-voltage positive and negative supplies don’t need voltage converters. The MAX1488E contains four drivers and requires ±12V supplies. The complement to this chip is the MAX1489E, which contains four receivers and operates from a single +5V supply. The receive circuits don’t require higher-voltage supplies. The MAX3314E requires dual power supplies of ±5V, doesn’t use charge pumps, and has RS-232 output swings of slightly less than ±5V. Protection Options Many chips incorporate extra protection from electrostatic discharge ESD transients on inputs and outputs. Circuits that require electrical isolation can use the MAX250/MAX251 pair with four optocouplers and a transformer. Short-range Circuits If you examine the data sheets for the MAX232 and similar chips, you’ll see that the specifications for their RS-232 inputs are less stringent than required by the RS-232 standard. As Figure 4-2 shows, the input thresholds are similar to TTL l prom-electric.ru

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Загорелась неисправность a81 на инверторе M700-09402000A. Другие приборы ATV61HD15N4S337, CIMR-F7C20220, FR-A720-00240-NA установленные на экструдерах без аварий.
Инструкцию нашел через google по запросу "psmn012-100yl" prom-electric.ru/media/PSMN012-100YL.pdf . Заменил высокочастотный фильтр.
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Вылезла ошибка a254 на частотном преобразователе N3-2P5-CS. Похожие устройства ATV31CU11N4, CIMRF7Z40221A, CIMR-V7CU40P74 установленные на двигателях исправны.
Значение нашел через rambler по запросу "pmf63un" prom-electric.ru/media/PMF63UN.pdf . Сгорел вентилятор охлаждения.
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