B&R 8LS 3 Series, Руководство пользователя

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Technical data
8LS...-3 user's manual V2.50 29
Technical data - Reinforced holding brake
8LSA3
8LSC3
8LSA4
8LSC4
8LSA5
8LSC5
8LSA6
8LSC6
8LSA7
8LSC7
Holding torque M
Br
[Nm] 9 15 60 60 80
Connected load P
On
[W] 15 18.0 25.0 25.0 36.5
Supply current I
On
[A] 0.63 0.75 1.04 1.04 1.52
Supply voltage U
On
[VDC] 24 (+10% / -10%) 24 (+6% / -10%)
Moment of inertia J
Br
[kgcm²] 0.55 1.35 14.7 14.7 27.0
Weight m
Br
[kg] 0.52 0.98 3.23 3.23 4.4
2.8.5 Shaft end (ff) 8LSA / 8LSC
All 8LS three-phase synchronous motors have shaft ends per DIN 748. The shaft end is available in several variants,
and availability can be determined in the corresponding table.
Motor options (ff) - Overview (order code)
see "Motor options (ff) 8LSA / 8LSC" on page 24
Variants
Smooth shaft end
A smooth shaft end is used for a force-fit shaft-hub connection and guarantees a back-
lash-free connection between the shaft and hub as well as a high degree of operating
smoothness. The end of the shaft has a threaded center hole.
Keyed shaft end
A keyed shaft end is used for a form-fit torque transfer with low demands on the shaft-hub
connection and for handling torque in a constant direction.
The keyways for 8LS three-phase synchronous motors conform to keyway form N1 per DIN
6885-1. Form A keyed shafts that conform to DIN 6885-1 are used. Balancing motors with
keyways is done using the shaft and fitment key convention per DIN ISO 8821.
The end of the shaft has a threaded center hole that can be used to mount machine actu-
ators with shaft end cover plates.
Caution!
The shaft key can become dislodged during heavy reverse operation. In extreme cases, this can cause
the shaft end to break!
Preferably use smooth shaft ends with clamping elements.