6 Assi
nin
Parameters to the Control and the PLC Pro
ram
6
03.96
6.10 Linear motors (1FN1 and 1FN3 motors)
6-172
 Siemens AG 2000 All Rights Reserved
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
6.10.7 Parallel connection of linear motors
The distances between the motor primary parts must ensure an identical phase
relation of the motor EMFs.
All primary parts are therefore connected cophasally in parallel to the converter.
Note:
Same outgoing cable direction
Ï„
M
: Pole pair width (see MD1170)
n: 0, 1, 2, ...
Primary part
Secondary part
Primary part
Secondary part
n S 2Ï„
M
n S 2Ï„
M
Fig. 6-39 Parallel connection of linear motors (standard configurations)
With this type of parallel connection (Janus configuration), the outgoing
cable directions of the individual motors are opposed.
Note:
Different outgoing cable directions
Ï„
M
: Pole pair width (see MD1170), 1FN107x: Ï„
M
= 28.2 mm, 1FN11xx and 1FN12xx: Ï„
M
= 36 mm
n: 0, 1, 2, ...
xx: Constant dimensions (see data sheet of motor manufacturer)
xx mm + n S 2Ï„
M
Fig. 6-40 Parallel connection of linear motors (Janus configuration, special type)
Mechanical
construction
Janus
configuration
(special type of
parallel
connection)
04.00
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