Siemens SIRIUS 3RW55 - Page 136

Torque curve
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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 = Di󹪜erence between activation torque and torque of load
Current characteristic
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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
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Rated operational current during rated operation
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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