Pneumatic control for safely reduced speed

Abstract

Pneumatic control for safely reduced speed for controlling at least two pneumatic drive components, characterized in that at least one directional valve (48, 49) is used for each drive component (46, 47), that a control block (1, 45) is used for each drive component (46, 47), each of which is configured with at least a first shut-off valve (19) configured as a 7 / 2-way valve, with a second shut-off valve (18) configured as a 7 / 2-way valve, with two throttles (28, 29), with two fixed orifices (16, 17), with two check valves (26, 27), with two manually actuated vent valves (20, 21), with a primary channel A (2), with a primary channel B (3), with a first control air channel (5), with a second control air channel (4), with a first test air channel (7) and with a second test air channel (6), further characterized in that each control block (1,45) the primary channel A (2) and the primary channel B (3) pass through the first shut-off valve (19) and the second shut-off valve (18), that the housing of the control blocks (1, 45) is of one or more parts, that a first test air duct connecting line (59) and a second test air duct connecting line (60) are used between adjacent control blocks (1, 45), that a first control air valve (63) designed as a directional solenoid valve and a second control air valve (64) designed as a directional solenoid valve are used, that a first test air flows into a first test air duct pressure switch (52), ending in series with a first test air line (55), in the first control block (1) through the first test air duct (7), the first test air duct connecting line (59) and in the second control block (45) also through the first test air duct (7), that a second test air flows into a second test air duct pressure switch (53), ending in series with a second Test air line (57),in the first control block (1) passes through the second test air channel (6), the second test air channel connecting line (60) and in the second control block (45) also passes through the second test air channel (6), further characterized in that a bypass channel (12, 13) is used for each control block (1, 45) to primary channel A (2) and primary channel B (3).