Encoder Resolution (Relative Magnetic Encoder)
262144 counts/rev
(24.0 µrad/count)
(0.0014°/count)
Backlash
Zero
Deflection Under Load
e
8.0 µrad/kg (1.65 arcsec/kg)
Maximum Total Load
f
0.200 kg (0.441 lbs)
Minimum Lifetime
g
600,600 Revolutions
h
(100 km)
Electrical
Motor Type
Elliptec Resonant Piezo
DC Voltage Input
4.5 to 5.5 V
Typical Current Consumption, During Movement
800 mA
Typical Current Consumption, During Standby
50 mA
Communications
Bus
i
Multi-Drop 3.3 V/5 V TTL RS232
Connector on Rotation Stage Board
Picoflex
®
Connectors on Interface Board
Picoflex
®
Micro-B USB
5 VDC Power:
[For Plug with Ø5.5 mm OD (Ground) and
Ø2.1 mm ID (+5 V)]
Speed
9600 baud
Data Length (1 Stop Bit, No Parity)
8 bit
Protocol Data Format
ASCII HEX
Module Address and Command Format
Mnemonic Character
8-Conductor Ribbon Cable Length (Supplied)
0.250 m
8-Conductor Ribbon Cable Length (Maximum)
3 m
Mechanical
Mounting Threads (On Stage, 37 Places)
8-32 (Imperial Version)
M4 x 0.7 (Metric Version)
Length: 0.24" (6.0 mm)
Dimensions of the Rotation Stage Board
(Without Brackets)
3.19" x 2.36" x 0.80"
(81.0 mm x 60.0 mm x 20.2 mm)
Dimensions of the Rotation Stage Board
(With Brackets)
3.19" x 3.72" x 0.84" (Imperial Version)
81.0 x 86.4 x 21.4 mm (Metric Version)
Dimensions of the Interface Board
1.26" x 2.60" x 0.49"
(32.0 mm x 66.0 mm x 12.5 mm)
Weight of Rotation Stage Board (Without Brackets)
0.176 lbs (0.08 kg)
Weight of Rotation Stage Board (With Brackets)
0.198 lbs (0.09 kg)
Weight of the Brackets and Stage and Interface Boards
0.220 lbs (0.10 kg)
Environmental Operating Conditions
Temperature Range
15 to 40 °C (59 to 104 °F)
Maximum Relative Humidity (Non-Condensing)
<80% at 31 °C
Maximum Altitude
2000 m
D
Performance specifications are given for the case when the rotation stage is mounted as
recommended in the
Operation
tab.
E
Travel is not limited.
F
Homing is performed using a combination of reflecting optical and magnetic sensors. For
details, please see the
Operation
tab or Sections 2.1 and 3.1.1 of the manual.
G
For a tip pushed against the vertical side of the stage, the TIR is the total measured
displacement during
a full rotation.
H
Deflection Due to Finite Compliance of Structure and Bearings of the Stage
I
The rotation stage is mounted
in the horizontal plane.
J
The rotation stage is not designed for continuous operation.
K
The number of revolutions is computed using a diameter of 53 mm, which includes the
Click to Enlarge
Mechanical Drawings of the
Rotation Stage
As is shown in the above drawing of the rotation
stage, the spacing and threading of the 37 mounting
holes in the stage differs between the
imperial (ELL8K) and metric (ELL8K/M) versions of
the stage. All other dimensions, including the 1.97"
(50.0 mm) diameter of the stage are the same for
both. The board is functionalized with four Ø0.17"
(Ø4.2 mm) through holes, which accept the included
6-32 x 1/4" (M3 x 6 mm) screws and are used to
attach the mounting brackets.
thickness of the track.
i. Use two 10 kΩ pull-up resistors in multi-drop mode for RX/TX.
