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Functions
7.2 Start-up
Parameters
Parameters
Current limiting value
In addition, the parameters of the voltage ramp startup function apply.
90
Description
Set the current limiting value, as a factor of the rated motor current, to the
maximum current required during startup. Once the set current limiting
value has been reached, the motor voltage is reduced or controlled by the
soft starter to prevent the current from exceeding the set current limiting
value.
Select a minimum current limiting value that is high enough to ensure that
the torque generated in the motor is sufficient to accelerate the motor to
nominal speed. Three to four times the value of the motor's rated
operational current (I
) can be assumed as typical here.
e
(Identical with the parameter of the Automatic parameterization (Page 81) /
Soft starting with torque control and current limiting (Page 91))
Factory setting: 400 %
•
Setting range: 125 ... 800 %
•
Increment: 1%
•
SIRIUS 3RW55 soft starter
Manual, 08/2018, A5E35630887002A/RS-AB/002
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