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Torque curve
0>1P@
Q>PLQ
@
①
Torque with direct-on-line starting without 3RW55 or 3RW55 Failsafe soft starter
②
Torque with short ramp-up time
③
Torque with long ramp-up time
④
Torque of the load
⑤
Acceleration torque = Difference between activation torque and torque of load
Current characteristic
,>$@
,
H
Q>PLQ
@
Q
H
①
Current characteristic with direct-on-line starting without 3RW55 or 3RW55 Failsafe soft starter
②
Current characteristic with short ramp-up time
③
Current characteristic with long ramp-up time
I
e
Rated operational current during rated operation
n
e
Rated operating speed of the motor
Functions
8.1 Start-up
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
136
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006