
Device functions
SIMATIC - ET 200pro motor starters
GWA 4NEB 950 5661-02 DS 06
10-43
10.16 Electronic / mechanical switch technology
Electronic switch technology
The motor starter controls the 2-phase motor with power semiconductors using
thyristors
Mechanical switching technology
The motor starter controls the 3-phase motors with contactors.
10.16.1 Messages and actions
These device functions deliver the following messages
Message Action
Switching element faulty
(e.g. contactor welded, power
semiconductor connected through)
Disconnect
Switching element overload
(e.g. power semiconductor too hot)
Disconnect
Table 10-28: Electronic / mechanic switch technology – messages and actions
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