Electrical Specifications and Installation
ANT95V-3 Hardware Manual
Table 3-3:
Motor Specifications
Linear
Motor
[ANT95V-3]
Performance Specifications
(1,5)
Continuous Force
(2)
N (lb)
9.7 (2.17)
Electrical Specifications
(5)
Winding Designation
-A
BEMF Constant (Line to Line, Max)
V/m/s (V/in/s)
3.78 (0.10)
Continuous Current
(2)
Amp
pk
(Amp
rms
)
2.94 (2.08)
Peak Current, Stall
(3)
Amp
pk
(Amp
rms
)
11.76 (8.31)
Force Constant, Sine Drive
(4, 8)
N/Amp
pk
(lb/Amp
pk
)
3.28 (0.74)
N/Amp
rms
(lb/Amp
rms
)
4.65 (1.05)
Motor Constant
(2,4)
N/√W (lb/√W)
1.41 (0.32)
Resistance, 25°C (Line to Line)
ohms
5.2
Inductance (Line to Line)
mH
0.70
Thermal Resistance
°C/W
2.12
Maximum Bus Voltage
(9)
VDC
80
Magnetic Pole Pitch
mm (in)
16.00 (0.63)
1. Performance is dependent upon heat sink configuration, system cooling conditions, and ambient temperature
2. Values shown @ 100°C rise above a 25°C ambient temperature, with motor mounted to the specified aluminum heat sink.
3. Peak force assumes correct rms current; consult Aerotech.
4. Force constant and motor constant specified at stall
5. All performance and electrical specifications ±10%
6. Maximum winding temperature is 125°C.
7. Ambient operating temperature range 0 °C - 25 °C; consult Aerotech for performance in elevated ambient temperatures
8. All Aerotech amplifiers are rated Apk; use force constant in N·m/Apk when sizing.
9. Bus voltages above 80 VDC require the -4DU-25DU stage output cable option.
The encoder in the ANT95V-3 has a 20 µm fundamental resolution. The encoder reads the horizontally driven
wedge motion, not the vertical tabletop motion. This increases the fundamental resolution seen at the
tabletop. The angle of the drive wedge is 7.70º, which results in a fundamental encoder resolution of 2.704
µm.
The fundamental resolution is not the same as the electrical resolution. The encoder signal is multiplied
inside Aerotech’s controller to yield a much smaller resolution. Consult the system documentation included
with the stage to determine this value.
The mechanical resolution, which is listed in the stage specification table in
, is distinct from the
electrical and fundamental resolution. It is the smallest motion increment Aerotech can consistently
measure using an external measurement device such as a laser or a capacitance probe. The mechanical
resolution can never be smaller than the electrical resolution of the stage.
Table 3-4:
Encoder Specifications
Model
ANT95V-3
Fundamental Resolution
2.70 µm
with x4000 Interpolation
0.68 nm
with x16000 Interpolation
0.17 nm
1. Quadrature decoding included in interpolation resolution calculations
26
Chapter 3
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