ASR1200 Rotary Stage User's Manual
Operating Specifications
Table 3-3:
ASR1200 Motor Specifications
Model
BM250
Performance Specifications
(1,5)
Stall Torque, Continuous
(2,8)
N-m
2.0
oz-in
285
Peak Torque
(3)
N-m
5.0
oz-in
712
Rated Speed
rpm
4,000
Rated Power Output, Continuous
watts
671
Electrical Specifications
(5)
BEMF Constant (line to line, max)
Volts pk / krpm
28.0
Continuous Current, Stall
(2,8)
Amp pk
10.5
Amp rms
7.4
Peak Current, Stall
(3)
Amp pk
26.3
Amp rms
18.6
Torque Constant
(4,9)
N-m / Amp pk
0.19
oz-in / Amp pk
27.1
N-m / Amp rms
0.27
oz-in / Amp rms
38.4
Motor Constant
(2,4)
N-m / √W
0.171
oz-in / √W
24.24
Resistance, 25 °C (line to line)
ohms
1.1
Inductance (line to line)
mH
1.30
Maximum Bus Voltage
VDC
340
Thermal Resistance
°C / W
0.94
Number of Poles
P
8
(1) Performance is dependent upon heat sink configuration, system cooling conditions, and ambient temperature
(2) Values shown @ 130 °C rise above a 25 °C ambient temperature, with motor mounted to a 250 mm x 250 mm x 6 mm aluminum
heat sink
(3) Peak torque assumes correct rms current, consult Aerotech
(4) Torque Constant and Motor Constant specified at stall
(5) All performance and electrical specific/- 10 percent
(6) Maximum winding temperature is 155 °C
(7) Ambient operating temperature range: 0 °C - 25 °C, consult Aerotech for performance in elevated ambient temperatures
(8) De-rate continuous torque and continuous current by 10 percent when using an encoder
(9) All Aerotech amplifiers are rated Apk; use torque constant in N-m / Apk when sizing
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Chapter 3
19
