Motor Control; Electronic Switching Technology (Hybrid Switching Technology) - Siemens SIMATIC ET 200SP Manual

3-phase operation
In 3-phase operation, you can operate a 3-phase asynchronous motor at the connections of
the motor starter.
To ensure motor protection, do not connect more than one motor to one motor starter.
Do not operate several single-phase motors on one motor starter in three-phase operation.
1-phase operation
In 1-phase operation, you can operate a 1-phase asynchronous motor at the connections of
the motor starter. 1-phase operation is only possible when using a direct-on-line starter. The
relevant three-pole tripping characteristics apply to single-phase operation.
Feed in the line voltage on terminals L1 and L2(N) only and connect the single-phase motor
to the terminals T1 and T2 only.
An ATEX approval in 1-phase operation is not possible with the motor starter.
See also
Overload protection (Page 42)
3.7.4

Motor control

3.7.4.1

Electronic switching technology (hybrid switching technology)

The SIMATIC ET 200SP motor starter combines the advantages of semiconductor
technology and relay technology.
The SIMATIC ET 200SP motor starter switches the load in phases L1 and L2 via
semiconductors and bypass relays. Phase L3 is always switched via a relay.
Hazardous Voltage
Can Cause Death or Serious Injury
If the line voltage is applied at the infeed bus of the motor starter, a hazardous voltage may
be active at the output of the motor starter even without a motor ON command. When
working on the feeder, you must ensure disconnection from the power, e.g. by the position
"Parking position/OFF".
You will find further information on the "Parking position/OFF" in the "ET 200SP distributed
I/O system" (http://support.automation.siemens.com/WW/view/en/58649293) System
Manual.
The SIMATIC ET 200SP motor starter combines the advantages of semiconductor
technology and relay technology.
This combination is known as hybrid switching technology. Hybrid switching technology in
the SIMATIC ET 200SP motor starter is characterized by the following properties:
Motor starter (3RK1308-0**00-0CP0)
Manual, 12/2016, A5E34821005002A/RS-AB/002
DANGER
Product overview
3.7 Functions
37