Bimba PFC-LRT - Manual (Page 22)

Leaders in Actuation.
Bimba Manufacturing Company
Monee, IL 60449-0068
Telephone: 708.534.8544
Email: [email protected]
www.bimba.com
Rev Level: 0
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The information presented is in Bimba’s best engineering opinion and should be used for reference only. Recommendations derived should be verified under
actual operating conditions. Bimba reserves the right to change specifications without prior notice.
22
D. Two-speed System Using Two Bimba Controllers
DESIRED RESULTS: A cylinder/system that operates at two different speeds. It is desired to have high-
speed movement between 2 and 6 inches of the stroke. It is also desired to have the motion slow down
for low-speed operation between 1 and 2, and 6 and 7 inches.
OPERATING SITUATION EQUIPMENT:
2 three-position valves
DC solenoids (12 VDC 2 AMP max.)
2 Bimba Controllers
8" cylinder (any bore)
FIGURE 21 shows a two speed system using two three-position valves and two controllers. The external
extend and retract switches can be manual push buttons or some other configuration which is actuated
by the machine being controlled by the cylinder. In this example when the extend switch is closed, power
is supplied to Relays 2 and 4.
FIGURE 21