22 · GLOBE RM410 PISTON AIR MOTOR MANUAL| INCLUDING AUXILIARIES | ATEX Certified
To comply to ATEX the holding torque is set by GLOBE and the brake is controlled with piping and special valves
to be supplied by GLOBE. The brake must be mounted to a GLOBE Piston Airmotors of equivalent size ( Gor
instance: RM110 BRAKE on RM110 Motor) including the correct piping and control valves supplied by GLOBE.
The end-user has to inform GLOBE prior to the delivery about the operating pressure of the motor. The brake will
be set to its maximum torque by GLOBE which belongs to this operating pressure. The special GLOBE APPV3214
3/2 way valve (D) has an adjustable pilot opening pressure. GLOBE will set this opening pressure equivalent
to the operating pressure. Whenever the operating pressure drops with more than about 20% the APPV3214
will close and the brake starts braking and stop the motor. This prevents the brake from dragging and the risk of
overheating. In case the motor is executed with a hand (HCV) control valve (circuit B) or remote (RCV) control
valve (circuit C) an extra 3/2 valve with pilot opening pressure of 2 bar (30 psi) is added.
Circuit A
Applies to braked motors supplied
without control valves. When one of
the ports (1) to the motor is pressurized
a pneumatic signal through the shuttle
valve will actuate the 3/2 way valve
(D) and the brake (B) is released.
Circuit B
Units supplied with hand (HCV) proportional control reversible
valve (C). When the HCV (C) is operated a pneumatic signal will
be passed onto the 3/2 valve (E) via the shuttle valve (F). If the
operating pressure (1) to the motor is high enough the 3/2 way
valve (D) is actuated and the brake (B) is released.
Circuit C
Units supplied with remote (RCV) proportional control reversible valve (C). When
the RCV is actuated by one of the pilot lines (3) with a pressure higher than 2 bar
(30 psi) a pneumatic signal will be passed onto the 3/2 valve (E) via the shuttle
valve (F). If the operating pressure to the motor is high enough the 3/2 way valve
(D) is actuated and the brake (B) is released.
To have proportional speed control of the motor the pilot pressure (3) to the RCV
(C) must be varied between 2 bar (30 psi) to 5 bar (75 psi). At 2 bar pilot pressure
(3) the RCV (C) is partially opened and the brake is released. At 5 bar (75 psi) pilot
pressure the RCV (C) is fully opened. With pilot pressures (3) between 2 bar (30
psi) and 5 bar (75 psi) the speed of the motor can be controlled proportionally.
Proportional pilot pressure equipment can be purchased at GLOBE (G).
