Siemens SIMOTICS L-1FN3 Configuration Manual page 596

Glossary
Primary section
The primary section is the electrically active component of a linear motor. It is usually the
moving component.
Secondary section
Unlike the → primary section, a secondary section is not electrically active. The → secondary
section track is composed of secondary sections.
Secondary section track
The secondary section track is usually composed of multiple → secondary sections. It is
usually the immobile component of a linear motor.
Stoker
The term "Stoker" describes the second of two motors in an axis fed by a shared power
module, which are therefore connected in parallel. → Parallel connection
Tandem arrangement
In a tandem arrangement, → Master and → Stoker have the same phase sequence UVW.
The cable outlets of the motors are located on the same side.
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Configuration Manual, 10/2018, 6SN1197-0AB86-0BP2
1FN3 linear motors