Beckhoff AL8000 Operating Instructions Manual page 68

Linear servomotors
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Technical description
Effective calculation
7.1.2
Effective section
AL802x
Name
Passive part of the cable side A [mm]
Passive part of the end side B [mm]
Effective range C [mm]
Housing length D [mm]
AL804x
Name
Passive part of the cable side A [mm]
Passive part of the end side B [mm]
Effective range C [mm]
68
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In an effective calculation, the travel path of the application is added
to the length of the effective section of the coil part and then divided
by the length of the magnetic plate.
The effective section contains are the coils of the coil part. In this
part the force is generated that drives the motor forward. The re-
maining installation space includes the wiring.
Position
Meaning
A
Passive part of the cable side
B
Passive part of the end side
C
Effective section
D
Housing length = sum of A + B + C
Example of effective calculation:
The values used here can be found in the following tables.
Travel path = 490 mm
Effective range of the coil part AL8041 = 76 mm
Length of magnetic plate AL8542 = 288 mm
Required number of magnetic plates:
(490 mm + 76 mm)/288 = 1.97 magnetic plates < 2 magnetic plates
are required
21
15.5
76
93
41
42
43
15.5
76
124
172
AL8000
AL80
22
24
17.5
1.5
124
220
143
239
AL80
44
45
17.5
1.5
220
268
Version: 1.7
26
316
335
46
48
22.5
316
412

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