Aerotech BM Series, Hardware Manual

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BM/BMS Series Hardware Manual Introduction
www.aerotech.com 1-17
Table 1-12: BMS280, BMS465 Motor Specifications (NEMA 34 Frame)
Motor Model Units BMS280 BMS465
Winding Designation -A -A
Performance Specifications
(1,5)
Stall Torque, Continuous
(2)
N-m (oz-in) 1.60 (227.0) 2.86 (404.8)
Peak Torque
(3)
N-m (oz-in) 6.41 (908.0) 11.43 (1619.2)
Rated Speed rpm 3,000 2,000
Rated Power Output, Continuous watts 503.5 598.5
Electrical Specifications
(5)
BEMF Constant (Line-Line, Max) Volts
pk
/k
rpm
51.1 70.6
Continuous Current, Stall
(2)
Amp
pk
Amp
rms
3.8
2.7 4.9
3.5
Peak Current, Stall
(3)
Amp
pk
Amp
rms
15.2
10.7 19.6
13.9
N-m/Amp
pk
oz-in/Amp
pk
0.42
59.7 0.58
82.6
Torque Constant
(4,8)
N-m/Amp
rms
oz-in/Amp
rms
0.60
84.5 0.82
116.8
Motor Constant
(2,4)
N-m/ √ W
oz-in/ √ W
0.179
25.34 0.280
39.70
Resistance, 25°C (Line-Line) ohms 5.7 4.4
Inductance (Line-Line) mH 1.10 0.87
Maximum Bus Voltage VDC 340 340
Thermal Resistance C/W 0.93 0.72
Number of Poles P 14 14
Mechanical Specifications
Motor Weight kg (lb) 3.60 (7.9) 5.00 (11.0)
Rotor Moment of Inertia
kg-m
2
oz-in-s
2
4.66x10
-4
0.0660
9.28x10
-4
0.1314
Max Radial Load N (lb) 178 (40)
Max Axial Load N (lb) 89 (20)
Notes:
1. Performance is dependent upon heat sink configuration, system cooling conditions, and ambient temperature.
2. Values shown @ 75°C rise above a 25°C ambient temperature, with housed 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 specifications ±10%.
6. Maximum winding temperature is 100°C; thermistor trips at 100°C.
7. Ambient operating temperature range 0°C - 25°C. Consult Aerotech for performance in elevated ambient temperatures.
8. All Aerotech amplifiers are rated A
pk
; use torque constant in N-m/A
pk
when sizing.