Start-Up; Starting Modes - Siemens SIRIUS 3RW55 Equipment Manual

Function
Factory setting (Page 278)
Device change (Page 281)
8.1

Start-up

8.1.1

Starting modes

Operating principle
The starting mode of the 3RW55 and 3RW55 Failsafe soft starters determines how the motor is
ramped up after the start command. You can set various starting modes.
Setting options
• 3RW5 HMI High Feature
Menu: "Parameters > Soft Starter > Parameter set 1 / 2 / 3 > Start settings > Starting mode"
Access protection to the 3RW5 HMI High Feature is not active or has been reset.
• With SIRIUS Soft Starter ES (TIA Portal) via the local interface on the 3RW5 HMI High Feature
Brief overview: Window "Project Navigation" with current project under created Soft Starter >
"Parameters" > Window "Work area" > "Soft Starter > Parameter set 1 / 2 / 3 > Start settings"
• With a fieldbus via a 3RW5 communication module:
– With SIRIUS Soft Starter ES (TIA Portal) Premium / Professional (only via a 3RW5 PROFINET
– Configuration software of the control system (e.g. STEP 7 with corresponding HSP)
– User program
You can find additional information on the parameters that can be set via the fieldbus in the
manual of the respective 3RW5 communication module.
Starting modes of the 3RW55 and 3RW55 Failsafe soft starters
• Soft starting with voltage ramp (Page 134)
• Soft starting with torque control (Page 137)
• Soft starting with voltage ramp and current limiting (Page 140)
(Factory setting)
• Soft starting with torque control and current limiting (Page 142)
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
or PROFIBUS communication module)
Brief overview: See SIRIUS Soft Starter ES (TIA Portal) via the local interface on the
3RW5 HMI High Feature
Soft Starter
3RW55
x
x
Functions
8.1 Start-up
3RW55 Failsafe
x
x
131