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Parameters
Parameter
Current limiting value
Example
①
②
3RW51 Soft Starter
Manual, 06/2019, A5E37108631002A/RS-AB/002
Description
In order to ensure that the drive can reach its rated speed, the minimum
current limiting value that you select must be high enough to generate
sufficient torque in the motor.
A typical value is three to four times the rated operational current (I
As soon as the current limiting value is reached, the motor is started
with this value until it has reached its rated operating speed. In this
case, the motor starting times may be longer than the maximum
parameterizable ramp-up time.
The maximum possible current limiting value for the 3RW51 soft starter
("max." position) is 7x the value of the maximum rated operational
current for the 3RW51 soft starter, where this value is identical to 7x the
value of the maximum rated operational current I
value is independent of the actual rated operational current I
motor set at the 3RW51 soft starter
Rated operational current I
I
motor = 29 A
•
e
Maximum current limiting which can be set at this soft starter: Imax = 7 x 47 A = 329 A
of the motor
e
Functions
7.2 Current limiting function
).
e
which can be set.This
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of the
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