Siemens SINUMERIK 840D Simodrive 611 digital - Parallel Connection of Linear Motors

6 Pro
g
rammin
g
the control
6
03/2006
6.10 Linear motors (1FN1 and 1FN3 motors)
6-150
© Siemens AG 2006 All Rights Reserved
SINUMERIK 840D/810D Start-Up Guide (IADC) – 03/2006 Edition
6.10.7 Parallel connection of linear motors
The distances between the motor primary sections must ensure an identical
phase relation of the motor EMFs.
All primary sections are therefore connected cophasally in parallel to the
converter.
Note:
Same outgoing cable direction
τ
M
: Pole-pair width (see MD 1170)
n: 0, 1, 2, ...
Primary
section
Secondary
section
Primary
section
Secondary
section
n S 2τ
M
n S 2τ
M
Fig. 6-40 Parallel connection of linear motors (standard configurations)
With this parallel circuit (back-to-back arrangement), the cables exit from the
individual motors in opposite directions.
Note:
Different cable exit directions
τ
M
: Pole-pair width (see MD 1170), 1FN107x: τ
M
= 28.2 mm, 1FN11xx and 1FN12xx: τ
M
= 36 mm
n: 0, 1, 2, ...
xx: Constant dimension (see data sheet from motor manufacturer)
xx mm + n S 2τ
M
Fig. 6-41 Parallel connection of linear motors (Janus configuration, special type)
Mechanical
structure
Back-to-back
arrangement
(special type of
parallel circuit)