U 723 Datasheet
User Manual: Pdf U-723 PILine® XY Stage
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Page Count: 3
24.04.2018
Compact XY Stage with Ultrasonic Piezo Motors
Precision-class XY stage
PILine® stages are particularly suitable for applications that require fast precision positioning. When switched off, the self-
locking drive holds the position of the stage mechanically stable. Energy consumption and heat generation are therefore
considerably reduced. Applications with a low duty cycle that are battery-powered or heat-sensitive benefit from these
characteristics. The position of the axis is measured by an encoder and an optical reference switch allows reliable repeatable
motion. The piezomotor drive principle and its electrical operation are inexpensive and can be customized.
PILine® ultrasonic piezomotors
An integral part of a PILine® ultrasonic piezomotor is a piezo actuator that is preloaded against a movable, guided runner via
a coupling element. The piezoceramic actuator is excited to ultrasonic oscillation by a high-frequency AC voltage between
100 and 200 kHz. Deformation of the actuator leads to periodic diagonal motion of the coupling element relative to the
runner. The feed created is a few nanometers per cycle; the high frequencies lead to the high velocities. Preloading the
piezoceramic actuator against the runner ensures self-locking of the drive when at rest and switched off.
Highly accurate position measuring with incremental encoder
Noncontact optical encoders measure the position directly at the platform with the greatest accuracy. Nonlinearity,
mechanical play or elastic deformation have no influence on the measurement.
Fields of application
Micromanipulation, automation, biotechnology, sample manipulation, sample positioning, applications with limited space,
vacuum applications to 10-6 hPa (optional)
Specifications
Motion
U-723.25
Unit
Tolerance
U-723
PILine® XY Stage
Fast positioning in 2 axes
Space-saving and light
High guiding accuracy
High sensor resolution of 10 nm
Self-locking, no heat generation at rest
Low-noise operation
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Active axes
x, y
Travel range
22 mm × 22 mm
Velocity
200
mm/s
max.
Mechanical properties
U-723.25
Unit
Tolerance
Load capacity in z
5
N
max.
Mass without cable
110
g
Linear guide
Crossed roller bearing with anti-creep system
Drive properties
U-723.25
Unit
Tolerance
Drive type
PILine® ultrasonic piezo motor, performance class 1
Nominal force
2
N
typ.
Holding force
2
N
typ.
Positioning
U-723.25
Unit
Tolerance
Integrated sensor
Optical, incremental sensor
Sensor resolution
10
nm
Minimum incremental motion
0.1
µm
typ.
Reference point switch
Direction-sensing optical reference point switch
Miscellaneous
U-723.25
Unit
Tolerance
Operating temperature range
0 to 40
°C
Humidity
20 – 90% rel., not condensing
Material
Aluminum, anodized
Motor / sensor connection
2 × Sub-D 15 (m)
Cable length
2 × 1.5 m
Sonderausführungen auf Anfrage.
Technical data specified at room temperature (22±3 °C) with C-867.2U2.
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Drawings / Images
U-723, dimensions in mm
Ordering Information
U-723.25
PILine® XY stage, compact design, 22 mm × 22 mm travel range, 2 N drive force, 10 nm sensor resolution
Accessories
U-600.A01
Extension cable for PILine®, Sub-D 15-pin, 1 m
U-600.A03
Extension cable for PILine®, Sub-D 15-pin, 3 m
U-600.A05
Extension cable for PILine®, Sub-D 15-pin, 5 m
