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(Новая страница: «А4 and А5 support binary input function DI: more than 3V at the terminal is considered as triggering of the input.») |
(Новая страница: «Input stage of Dx channels consists of a circuit for connection of dry contacts. This stage continuously provides 5V voltage at the terminal. In input mode the Tx…») |
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А4 and А5 support binary input function DI: more than 3V at the terminal is considered as triggering of the input. | А4 and А5 support binary input function DI: more than 3V at the terminal is considered as triggering of the input. | ||
Input stage of Dx channels consists of a circuit for connection of dry contacts. This stage continuously provides 5V voltage at the terminal. In input mode the Tx key is inactive (open). When the terminal is grounded, small current (2 mA) flows via the channel. Controller considers that as triggering of the input. Closing of the Tx key is considered as triggering of the input. In output mode the output stage | |||
does not affect the channel operation, provided that a more than 5 V load is connected to the channel. | |||
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