Siemens SIRIUS 3RW55 - Voltage Ramp; Voltage Ramp (Page 149)

8.2.3 Voltage ramp
Operating principle
With the stopping mode "Voltage ramp", the motor voltage is decreased along a linear, negative
voltage ramp until the motor has stopped.
Application
• Drives that stop abruptly when switched o󹪜, causing the transported goods to be damaged,
such as bottling plants.
Setting via 3RW5 HMI High Feature
• Menu: "Parameters > Soft Starter > Parameter set 1 / 2 / 3 > Stopping mode settings >
Stopping mode > Voltage ramp"
• Menu (Parameters): "Parameters > Soft Starter > Parameter set 1 / 2 / 3 > Stopping mode
settings"
• Access protection to the 3RW5 HMI High Feature is not active or has been reset.
Voltage characteristic
8>9@
8
1
W>V@
W

W

8
6WRS
t
1
... t
2
Stopping time
U
N
Line voltage
U
Stop
Stop voltage (50% of the line voltage)
Functions
8.2 Run-down
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006 149