Technical data
8LS...-3 user's manual V2.50 61
2.14.2 8LSAA...-3 - Technical data
Model number 8LSAA2.
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8LSAA2.
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8LSAA2.
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8LSAA3.
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8LSAA3.
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8LSAA3.
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Motor
Nominal speed n
N
[rpm] 3000 4500 6000 3000 4500 6000
Number of pole pairs 5
Nominal torque M
n
[Nm] 1.3 1.27 1.23 2.11 2.05 1.97
Nominal power P
N
[W] 408 598 773 663 966 1238
Nominal current I
N
[A] 0.9 1.31 1.69 1.46 2.11 2.7
Stall torque M
0
[Nm] 1.4 2.24
Stall current I
0
[A] 0.95 1.42 1.89 1.54 2.31 3.1
Maximum torque M
max
[Nm] 4.5 7.5
Maximum current I
max
[A] 4 6 8 6.5 9.8 13
Maximum speed n
max
[rpm] 7000
Torque constant K
T
[Nm/A] 1.45 0.97 0.73 1.45 0.97 0.73
Voltage constant K
E
[V/1000 rpm] 87.96 58.64 43.98 87.96 58.64 43.98
Stator resistance R
2ph
[Ω] 30.3 13.9 7.6 18.6 7.8 4.7
Stator inductance L
2ph
[mH] 59.2 27 14.8 40.5 17.5 10.1
Electrical time constant t
el
[ms] 1.95 1.94 1.95 2.18 2.24 2.15
Thermal time constant t
therm
[min] 31 34
Moment of inertia J [kgcm
2
] 0.38 0.6
Weight without brake m [kg] 2.2 2.9
Holding brake
Holding torque of brake M
Br
[Nm] 3.2
Mass of brake [kg] 0.6
Moment of inertia of brake J
Br
[kgcm
2
] 0.38
Recommendations
ACOPOS 8Vxxxx.xx... 1016 1022 1045
ACOPOSmulti 8BVIxxxx... 0014 0028 0014 0028
ACOPOS P3 8EIxxxx... 2X2X 4X5X
Cross section for B&R motor cables
[mm
2
]
0.75
Connector size 1.0
NOTE about servo drives: The recommended servo drive / inverter module is designed for 1.1x the stall current. If more than double the amount is needed during
the acceleration phase, the next larger servo drive should be selected. This recommendation is only a guideline; detailed inspection of the corresponding speed/
torque characteristic curve can result in deviations of the servo drive size (larger or smaller).
NOTE about cable cross section: The B&R motor cables with this cable cross section are produced optimally (cables stripped to the correct length) for the
ACOPOS servo drive or the recommended ACOPOS inverter module. B&R motor cables with other cable cross sections can also be used (within the specified
terminal cross section range) and can be obtained from B&R in the desired design on request. Note the type of wiring.
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