Physik Instrumente N­331 Datasheet N 331

N-331-Datasheet N-331 PICMAWalk Walking Drive

User Manual: Physik Instrumente N-331 PICMAWalk Walking Drive

Open the PDF directly: View PDF .
Page Count: 4

02.11.2017

OEM Walking Drive for Durable Applications with up to 15 mm/s Velocity and up to 50 N Push/Pull Force

PICMAWalk walking drive

The PICMAWalk walking drive combines the high reliability of the PICMA® actuators with the innovative stepping principle of

the already established NEXLINE® and NEXACT® drives. Eight actuators arranged in the shape of a V ensure reliable and the

highest possible feed motion with a maximum of 60 N holding force, 50 N push/pull force, and a maximum of 15 mm/s

velocity.

The excellent liftoff behavior of the actuators combined with the perfectly matched flexure guides ensure extremely high

durability of the drive over a travel path of 30 km, even for high-demanding continuous load in industrial applications such as

alignment of large optics, detectors, and camera set-ups.

The modular design of the drives offers the possibility of implementing individual, customized requirements quickly and

inexpensively. The robust PICMAWalk walking drive is a reliable and durable drive solution for nanometer precision

positioning of loads up to 5 kg.

PICMA® piezo actuators

PICMA® actuators have all-ceramic insulation and their performance and lifetime are therefore far superior to conventional

actuators. The ceramic insulation layer protects the monolithic piezoceramic block against humidity or failure due to

increased leakage current. In this way, an especially high reliability is achieved even under extreme ambient conditions. In

contrast to motorized drives, there are no rotating parts or friction. The piezo actuators are therefore free of backlash,

maintenance, and wear.

Flexure guides

A flexure guide is an element free of stiction and sliding friction, which is based on the elastic deformation (bending) of a

solid (e.g., steel) and does not have any rolling or sliding parts. Flexure elements have a high stiffness and load capacity. They

do not wear, require no maintenance, are 100 % vacuum compatible, function in a wide temperature range, and do not

require any lubricants.

Fields of application

 Microscopy

 Automation technology

 Positioning loads up to 5 kg in photonics applications and permanent image inspection tasks

N-331

PICMAWalk Walking Drive

 Robust walking drive with PICMA®

technology and extreme durability for

industrial use

 Fastest and strongest drive of its size class

 Variable runner lengths from 25 mm to

100 mm

 Precise, nanometer precision positioning

of loads up to 5 kg

 Plug-and-play, thanks to PI proprietary

controller technology

02.11.2017

Specifications

N-331.10 / N-331.13

N-331.20 / N-331.23

N-331.40 / N-331.43

Unit Tolerance

Active axes X

Motion and positioning

Integrated sensor N-331.x0: Without sensor

N-331.x3: With incremental sensor

Travel range (step mode, open loop)*

N-331.1x: 30

N-331.2x: 55

N-331.4x: 105

mm ±0.5 mm

Travel range (step mode, closed loop)

N-331.1x: 25

N-331.2x: 50

N-331.4x: 100

mm

Step frequency** 600 Hz max.

Velocity (step mode)** 15 mm/s max.

Travel range (analog mode) ±10 µm typ.

Resolution (open loop) 0.02 nm typ.

Resolution (closed loop) <10 (N-331.x3) nm typ.

Endurance (atmospherical operation)*** >30 km

Mechanical properties

Push / pull force (active) 50 N max.

Holding force (passive) 60 N max.

Drive properties

Drive type PICMAWalk

Operating voltage -20 to 120 V

Connectors

Connector Sub-D 37 (m)

Miscellaneous

Operating temperature range 0 to 50 °C

Material Aluminum, stainless steel

Mass with cable

N-331.1x: 580

N-331.2x: 610

N-331.4x: 660

g ±20 g

Moved mass

N-331.1x: 110

N-331.2x: 140

N-331.4x: 190

g ±10 g

Cable length 2.0 m ±10 mm

Recommended electronics E-712.1AN • E-712.2AN • E-712.3AN

* From one mechanical hard stop of the runner to the other mechanical hard stop, only in open-loop operation

** When operating with the E-712.xAN

*** Optimally decoupled load of 2 kg with max. 70 % duty cycle and external cooling of the E-712.1AN, at 20 °C and 1013 hPa. Highest endurance within the

PiezoWalk® family.

All specifications based on room temperature (22 °C ±3 °C).

Ask about custom designs!

02.11.2017

Drawings and Images

N-331.x3, dimensions in mm. The dimensions for N-331.x0 are identical.

N-331.1x: L = 99 mm

N-331.2x: L = 124 mm

N-331.4x: L = 174 mm

Drive dimensions without runner: 55 mm × 55 mm × 31 mm

02.11.2017

The N-331 drive reliably performs repeatable 10-nm steps. An interferometer was used for measuring.

Ordering Information

N-331.10

Piezoelectric walking drive PICMAWalk, 25 mm travel range, open loop, 50 N push/pull force

N-331.13

Piezoelectric walking drive PICMAWalk, 25 mm travel range, incremental sensor, 50 N push/pull force

N-331.20

Piezoelectric walking drive PICMAWalk, 50 mm travel range, open loop, 50 N push/pull force

N-331.23

Piezoelectric walking drive PICMAWalk, 50 mm travel range, incremental sensor, 50 N push/pull force

N-331.40

Piezoelectric walking drive PICMAWalk, 100 mm travel range, open loop, 50 N push/pull force

N-331.43

Piezoelectric walking drive PICMAWalk, 100 mm travel range, incremental sensor, 50 N push/pull force

Ask about custom designs!