Payload docking time is typically one second
(adjustable) with a comparable refloat time.
Precision roller bearings form a true kinematic
six-point-contact mount and allow highly reproducible docking
of the payload (typical repeatability is ± 0.001 in.).
Docking is initiated with a TTL signal (logic
1 for dock, 0 for float). The input impedance is 1kΩ.
Docking force is adjusted by increasing or
decreasing the system’s vent time. A harder dock allows
for some stage motion after docking (shift in the payload’s
mass distribution) but requires a longer vent time and refloat
times. Lighter docking minimizes the system’s cycle time.
A fully plumbed air exhaust line allows for
clean disposal of waste air.
The system requires only a 12 - 20 VDC power
supply, and a single logic input (3 wires total). If two-wire
operation is desired, the logic input can be tied to the positive
power line. The electronic interface is through a four-pin Jones
connector. The maximum power consumption is 3w (intermittent:only
during “docked” mode).
System air consumption depends upon the vent
time selected for the application. The controller itself requires
only 70 - 120 psi for operating internal pilot valves.
The system is retrofitable to all of TMC’s
standard vibration isolation systems and can be customized for
most other air isolation systems.
The system is modular, allowing simple replacement
of the valving unit for service. All
pneumatic and electronic inputs and
outputs to the box are quick-connect
types. All interfaces to the box are
from one side, allowing easy installation in OEM applications.
