Operating Principle - Siemens SIRIUS 3RW51 Equipment Manual

Description

3.3 Operating principle

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3.3 Operating principle
Soft starters are used to start three-phase induction motors with reduced torque and reduced
starting current.
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Main circuit connection (mains supply and external bypass)
Slot for 3RW5 HMI Standard (accessory) or 3RW5 HMI High Feature (accessory)
Interface for 3RW5 HMI Standard (accessory) or 3RW5 HMI High Feature (accessory)
Setting elements for parameter assignment
MODE key
Slot for 3RW5 communication module (accessory)
Connectible conductor cross sections
You will also find the conductor cross-sections that can be connected in the Technical data
(Page 161).
Scale for the setting element I
You will also find the applicable scale in the Technical data (Page 161).
Diagnostics LEDs and RESET / TEST key
Eye for lead seal
Main circuit connection (motor)
Control terminals (inputs / outputs)
Control cable duct with cover
e
Equipment Manual, 09/2020, A5E37108631002A/RS-AC/003
SIRIUS 3RW51 Soft Starter