Accessories
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Materials & Sizes
For selecting the right choice for the application, the main criterion is certainly the type of output (as described before) as well as the
number of positioners to be wired.
Flanges:
Connection:
Select between KF or CF flanges with 40 mm, or 63 mm
diameter, respectively.
Open loop positioners require two electrical lines, resistive encoded positioners (/RES) five, and optoelectronic
encoded positioners (/NUM) are equipped with a SubD15
connector per axis. Consequently, the number of required
SubD15 flange feedthroughs vary depending on the positioner type, e.g. a standard SubD15 connector can be used
to either connect a single /NUM encoded positioner or
three /RES encoded positioners.
Electrical feedthroughs:
Depending on the flange size either one or three SubD15
feedthroughs are integrated into the flange.
Cabling:
A woven, Kapton-coated flat cable (length: 0.5 m) with PEEK
connectors used in the vacuum chamber and an adapter cable
at ambient pressure (length: 2 m) are used to connect the
controller to the positioner.
Naming Scheme
In order to better describe the variety of vacuum feedthroughs, attocube uses the following naming scheme, explained here for e.g. the VFT3/NUM/CF63 feedthrough solution:
VFT short for “Vacuum Feed-Through” (or EVFT for “ECS Vacuum Feed-Through”)
/NUM describes the type of output on the electronics and type of positioner connector inside the chamber - in this case positioners with integrated optoelectronic
3 describes the number of cables on the outside and of connectors inside - in this
encoder can be connected (or /RES for resistive encoders)
case one can connect three ANP positioners.
/CF63 is the type and size of flange used (this determines
also the type of connectors and cabling inside).
attoMOTION
Piezo-based Nano Drives