Connecting
8.2 Electrical connection
SIMOTICS M-1FE2 built-in motors
Configuration Manual, 05/2021, A5E50494252B AB
135
Star-delta changeover sequence
1.
Pulse inhibit:
The pulses are inhibited on reaching the changeover speed (p2155).
2.
Open the motor contactor:
Motor contactor 1 is opened (r0830 = 0) and the status bit "Motor data set changeover
active" (r0835.0) is set.
3.
Change over the drive data set:
The requested data set is activated (r0051 = requested data set).
4.
Energize the motor contactor:
After the feedback signal (motor contactor opened) from motor contactor 1, the
appropriate bit of r0830 is set and motor contactor 2 is energized.
5.
Enable the pulses:
After the feedback signal (motor contactor closed) from motor contactor 2, the bit "motor
changeover active" (r0835.0) is reset and the pulses are enabled.
The changeover is complete.
❒
Circuit diagrams for the 1FE2 in asynchronous version
The following chapter presents the circuit diagrams for possible connections to the SINAMICS
S120 for the asynchronous version.
The circuit diagram contains information about wiring and connecting the motor winding.
The circuit diagram is provided in the motor packaging.
Note
Connect a rotary encoder according to the project specifications.
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