Board 7406

Master Clock Board

The board contains 2 independent channels to control clockworks with pole-alternating minute pulses. Both channels can be combined to one minute/second line.

Every clock line can take a load of up to ± 60 V DC / 1 A, which corresponds with at least 50 clocks per line. The voltage amplitude of the lines is monitored. In case of a fault there is a collective error message via a potential free relay contact and an individual message of the faulty line via an LED on the panel of the board.

The output current of every line is limited to 1 A. The output lines become highresistive with higher current. All the values necessary for the operation are stored in a failsafe memory, enabling the board to adjust the synchronous lines after a power failure.

Up to 16 synchronous lines can be operated in a system 7001.

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