Siemens SIRIUS 3RW55 Equipment Manual page 153

Speed curve
①
②
Parameters
Note
Motor data
For optimum torque control during the stopping procedure, enter the motor data of the motor
connected to the 3RW55 or 3RW55 Failsafe soft starter in the selected parameter set using the
"Motor parameters" menu item.
Menu: "Parameters > Soft Starter > Parameter set 1 / 2 / 3 > Motor parameters"
Parameters
Stopping time
Stopping torque
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
Stopping mode "Voltage ramp"
Stopping mode "Pump stopping mode"
Description
The stopping time defines the time within which the motor voltage is reduced
from line voltage to 0 V.
It may take longer for the motor to actually coast down to a standstill.
The setting "0 s" causes the motor to be shut down immediately without a
down ramp.
• Factory setting: 10 s
• Setting range: 0 ... 360 s
• In steps of: 0.1 s
The motor torque is "controlled" until the stopping torque is reached and then
switched off. The rated torque of the motor is used as the reference value.
• Factory setting: 10%
• Setting range: 10 ... 100%
• In steps of: 5%
Functions
8.2 Run-down
153