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Functions
8.2 Current limiting function
8.2
Current limiting function
Operating principle
Activate the current limiting function if you want to ensure that a specific current value is not
exceeded during motor starting. The motor is always started up with the voltage ramp. If the
current exceeds the parameterized current limit x I
the current limitation function starts. The current limitation function remains active until the
3RW52 soft starter has detected the motor ramp up and the motor is in a normal operating
state.
Application
Avoiding current surges
Reducing energy costs
Current path
I
e
134
Current characteristic with direct-on-line starting without 3RW52 soft starter
Adjustable current limiting value
Voltage ramp
Rated operational current during rated operation
, the voltage ramp function is aborted and
e
Equipment Manual, 04/2020, A5E35630451002A/RS-AE/005
SIRIUS 3RW52 Soft Starter
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