Functions
7.2 Current limiting function
SIRIUS 3RW50 soft starter
Manual, 09/2019, A5E35628455002A/RS-AA/001
123
7.2
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
e
, the voltage ramp function is aborted and
the current limitation function starts. The current limitation function remains active until the
3RW50 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
①
Current characteristic with direct-on-line starting without 3RW50 soft starter
②
Adjustable current limiting value
③
Voltage ramp
I
e
Rated operational current during rated operation
Содержание SIRIUS 3RW50
Страница 8: ...Table of contents SIRIUS 3RW50 soft starter 8 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 38: ...Description 1 13 Support Request SIRIUS 3RW50 soft starter 38 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 90: ...Connecting 4 11 COM connection cable SIRIUS 3RW50 soft starter 90 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 160: ...Functions 7 12 3RW5 HMI High Feature SIRIUS 3RW50 soft starter 160 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 184: ...Messages and diagnosis 8 11 Logbooks SIRIUS 3RW50 soft starter 184 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 202: ...Circuit diagrams 12 1 CAx data SIRIUS 3RW50 soft starter 202 Manual 09 2019 A5E35628455002A RS AA 001 ...