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Motors and Generators | Abb AC Servo motors
BSM 25 & 33 series performance curves
SPEED (rpm) x 1000
TORQUE (lb-in.)
2
3
4
5
6
7
8
9
1
0
TORQUE (Nm)
20
30
40
50
60
70
80
10
0
3
4
5
6
7
1
2
0
320 VDC BUS
1
2
3
0
CURRENT (Amps)
SPEED (rpm) x 1000
TORQUE (lb-in.)
TORQUE (Nm)
320 VDC BUS
1
2
3
0
CURRENT (Amps)
0
1
2
3
4
5
6
7
8
9
0
20
40
60
80
100
0
2
4
6
8
10
SPEED (rpm) x 1000
TORQUE (lb-in.)
5
10
15
20
25
0
TORQUE (Nm)
50
100
150
200
0
320 VDC BUS
1
2
3
0
CURRENT (Amps)
2
4
6
8
10
12
14
16
18
0
BSM33C-2177MHQ
BSM33C-3177MHQ
BSM33C-4177MHQ
Model number
BSM33C-2177MHQ
BSM33C-3177MHQ
BSM33C-4177MHQ
General
Continuous stall torque
lb-in
27.4
35.4
79.7
Nm
3.1
4
9
Continuous current
amps
2.55
3.16
6.47
Peak torque
lb-in
82.3
106.2
239
Nm
9.3
12
27
Peak current
amps
7.6
9.5
19.4
Thermal resistance
°C/watt
1.17
1.1
0.69
Thermal time constant
Min
27.8
29.5
33.9
Mechanical time constant
msec
2.09
1.92
1.16
Electrical time constant
msec
3.81
4.37
5.75
Rated speed @ 300 volts
rpm
1800
1800
1800
Rated speed @ 160 volts
rpm
900
900
900
Electrical
Torque constant
lb-in/amp
13.5
14
15.4
Nm/amp
1.52
1.58
1.74
Voltage constant
Vpk/krpm
131.5
136.3
151.3
Vrms/krpm
93
96.4
107
Resistance
ohms
11.4
7.88
3.37
Inductance
mH
45.7
34.4
17.2
Mechanical
Inertia
lb-in-s
2
0.00374
0.00536
0.01033
Kg-cm
2
4.22
6.05
11.66
Maximum speed
rpm
7,000
7,000
7,000
Number of motor poles
—
8
8
8
Weight
lbs/Kg
14.9/6.8
17.3/7.9
25.3/11.5
Abb AC Servo motors