Parameter assignment
5.2 Motor parameters
SIRIUS 3RW55 soft starter
Manual, 08/2018, A5E35630887002A/RS-AB/002
73
The rated operating speed is required for calculating the current rated torque.
Automatic detection The soft starter detects the type of connection (inline circuit or
inside-delta circuit) automatically if the load voltage is applied and
the motor is connected to the device. Thus no parameterization of
the type of connection is necessary.
Inline The connections of the soft starter are wired into the motor feeder
between the motor starter protector and the motor.
Inside-delta The inside-delta circuit makes it possible to increase the operable
motor power of the individual devices by a factor of root 3.
Operation in the inside-delta circuit is not possible for 690 V.
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