Disc tool turret BSV-N

electromechanicalmodular

BSV-N series 25 ELECTROMECHANICAL TURRETS CYCLE DESCRIPTIONS 1. – Signals To get a change of positions on the BSV-N turrets, the control equipment (usually a N.C. equipment) must control the components mentioned below according to a well defined sequence (see wiring diagram on page 15). • Motor (1) • Brake (3) • Indexing solenoid (4) The following output signals from the turret are provided for driving the positioning cycle: – Angular position given by the angular position transmitter (7) – Indexing control switch (5) – Locking control switch (6). 1. – Description of the operating sequence This description refers to sequence cycle: the first part gives the sequence to pass from position 1 to position 2 with clockwise rotation, the second part gives the sequence to pass from position 2 to position 12 with counterclockwise rotation. As indicated by the cycle, the controls are to be performed according with the following sequence: • De-energize the brake (3) and start motor rotation in the desired direction. • If, as in the case shown by the diagram, the next position (pos. 2) is the Stop position, when the strobe signal reached a zero level, the solenoid (4) is to be energized. In case of passage from position 2 to position 12, wait for the reading signaling the passage on pos. 1 then, since the next one is the Stop position, wait until the next strobe signal reaches a zero level and (at that time only) energize the solenoid (4). N.B.: The maximum lag time between the reading of the strobe signal and the excitation of the solenoid (4) cannot exceed the R1 values indicated in the table.