NUMBER OF THE OUTPUTS: from 1 to 32 (extensible to 64), to be specified at the order and set during the test process. I: (PULSE) adjustment by screwdriver for the pulse period: from 40ms to 1 second (Tab. A). The pulse activation is pointed out by the lighting of the red led correspondent to each output. This regulation is always set by the operator in all modes of operation (on-off, proportional and standard operation). P: (PAUSE) adjustment by screwdriver for the pause period: between one pulse and the next one (Tab. A). When 1-DS3 is OFF the adjustment ranges from 1s to 60s. When 1-DS3 is ON the period is multiplied by 10. The pause is pointed out by the green led P. This regulation is set by the operator and it is operative both in standard and on-off operation. It is not operative with the proportional economizer. BASIC PAUSE: adjustment by screwdriver for selecting the value of the basic pause and of the curve (Tab. D and fig. 4) in the mode of operation proportional economizer; the dipswitch DS3 enables to multiply by 10 the base values.

FUNCTION The device energizes the outputs in sequence for the period I (PULSE). Between the excitation of two outputs the period P (PAUSE) takes place. After the last output, the first one is energized again, and a new cycle starts. USE It is used for the cyclic command of several loads, such as electrovalves for filters, contactors, relays, lamps, for the gradual connection of loads etc. In the applications with sleeved filters the period I is used to energize electrovalves issuing a compressed air jet (5÷6 bar) shaking the sleeve of the filter. The air consumption (jets) is proportional to their frequency (fig. 1).

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