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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 off, 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
t
... t
1
U
N
U
Stop
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
Stopping time
2
Line voltage
Stop voltage (50% of the line voltage)
Functions
8.2 Run-down
149
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