ABB
1
10
ABB |
Motors and Generators | Abb AC Servo motors
BSM N-series performance curves
BSM50N-275
BSM50N-333
BSM50N-375
Model number
BSM50N-275
BSM50N-333
BSM50N-375
General
Continuous stall torque
lb-in
7.9
12
12
Nm
0.9
1.36
1.36
Continuous current
amps
1.42
4.56
2.38
Peak torque
lb-in
32
48.15
48.15
Nm
3.65
5.44
5.44
Peak current
amps
4.87
15
8
Thermal resistance
°C/watt
2.6
1.8
1.8
Thermal time constant
Min
11
15
15
Mechanical time constant
msec
0.35
0.29
0.3
Electrical time constant
msec
2.1
1.9
1.8
Rated speed @ 300 volts
rpm
4000
7500
4000
Rated speed @ 160 volts
rpm
2000
4000
1500
Electrical
Torque constant
lb-in/amp
6.66
3.2
6.4
Nm/amp
0.75
0.36
0.72
Voltage constant
Vpk/krpm
64.3
30.9
61.9
Vrms/krpm
45.5
21.89
43.8
Resistance
ohms
16
2.1
8.5
Inductance
mH
33.2
4.1
16
Mechanical
Inertia
lb-in-s
2
0.00011
0.00016
0.00016
Kg-cm
2
0.124
0.18
0.18
Maximum speed (1)
rpm
10,000
10,000
10,000
Number of motor poles
—
4
4
4
Weight
lbs/Kg
3.4/1.6
4.4/2
4.4/2
SPEED (rpm) x 1000
CURRENT (Amps)
TORQUE (lb-in.)
160 VDC BUS
320 VDC BUS
650 VDC BUS
1
2
3
0
TORQUE (Nm)
0
10
20
30
1
2
3
4
5
6
7
0
565 VDC BUS
0
1
2
3
4
SPEED (rpm) x 1000
CURRENT (Amps)
TORQUE (lb-in.)
320 VDC BUS
160 VDC BUS
1
2
3
4
5
0
TORQUE (Nm)
0
10
20
30
40
1
2
3
4
5
6
7
0
0
2
4
6
8
10
12
14
SPEED (rpm) x 1000
CURRENT (Amps)
TORQUE (lb-in.)
160 VDC BUS
320 VDC BUS
650 VDC BUS
565 VDC BUS
1
2
3
4
5
0
TORQUE (Nm)
0
10
20
30
40
1
2
3
4
5
6
7
0
0
1
2
3
4
5
6
7
8
(1) Maximum speed can be limited by bus volts and feedback types.
Abb AC Servo motors