Bosch DOK-MOTOR-MCL Series, Project Planning Manual

Page: 120 / 196

Double comb arrangement (Gantry)
Within a Gantry arrangement – the primary parts in feed direction can be me‐
chanically coupled and arranged in the form of a double comb arrangement.
① Control unit
② Controller (2 pcs.)
① Length measuring system (2 pcs.)
Fig. 9-27: Gantry arrangement (double comb)
With Gantry arrangements it must be remembered that the motors may be
stressed asymmetrically, although the position offset is minimized. As a con‐
sequence, this permanently existing bas load may lead to a generally higher
stress than in a single arrangement. This must be taken into account when
the drive is selected.
The asymmetric capacity can be reduced to a minimum by exact‐
ly aligning the length measuring system and the primary and sec‐
ondary parts to each other, and by a drive-internal axis error com‐
pensation.
Arrangement of primary parts in a row (Gantry)
Primary parts can be arranged in feed direction even in a row, mechanically
coupled.
① Control unit
② Controller (2 pcs.)
① Length measuring system (2 pcs.)
Fig. 9-28: Gantry arrangement (primary parts in a row)
9.13.3 Arrangement of secondary parts
During assembly, you must not heed the arrangement of the secondary parts.
Due to construction of MCS, a "polarity reversal" - arrangement of several
secondary parts within a path is prevented. The order of magnetization is un‐
changed by a 180° - rotation of secondary parts.
Please observe the notes in
chapter 13.4 "Air-gap, parallelism and symmetry
of the motor components" on page 160 and chapter 13.5 "Fastening secon‐
dary part" on page 161 about alignment and fastening of secondary parts.
Bosch Rexroth AG DOK-MOTOR*-MCL********-PR05-EN-P 118/193
Rexroth IndraDyn L Ironless Linear Motors MCL
Application and construction instructions