SIMATIC ET 200S Motor Starters

Overview

Description

Description

The ET 200S motor starters can be used to protect and switch any three-phase load. The completely prewired devices are available in different performance classes as direct, reversing or soft-starters up to an output of 7.5 kW.The terminal module contains the self-assembling energy bus and the terminals for direct connection of the motor cable. A motor starter can be removed and inserted without the need to isolate the system.

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Standard motor starters

Circuit-breaker and contactor combination up to 5.5 kW
Direct-on-line or reversing starters
Optional safety system

High Feature motor starters

Combination of starter circuit-breaker, electronic overload relay and contactor or soft starter up to 7.5 kW
Comprehensive diagnostics messages, e.g. actual current value
Statistical data, e.g. current for the last overload trip, can be read out using the service and commissioning software Motorstarter ES
Parameterization over the bus
Only two current setting ranges up to 7.5 kW
Safety technology integrated

Fail-safe motor starters

As soon as more complex or widely distributed safety applications are implemented, the Failsafe motor starter in combination with the PM-D F PROFIsafe power module is the optimized solution. Signals from safe sensors are read in through safe inputs at any required point in a plant and transferred to the failsafe programmable controller via PROFIBUS by means of the PROFIsafe message frame. In the application program they are linked to the Failsafe motor starters or the associated power module.

These motor starters based on the High Feature motor starter offer a completely new patented technique for safety shutdown: Whereas under normal operation the contactor is responsible for shutdown, in the event of a fault, e.g. welded contactor contacts, the integral dual processor monitoring also trips the circuit-breaker. This ensures that each individual motor starter achieves Category 4 or SIL 3 without additional redundancy contactors. The fail-safe motor starter monitors the function of the contactor regardless of whether the application is safety-related or not, so these devices are also suitable for use in high-availability processes.

Further characteristics that support high availability are:

Type of coordination 2 over the complete power range up to 7.5 kW
The emergency start function allows important processes to be continued to completion despite a reason for shutdown, e.g. overload.

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