Siemens SIRIUS 3RW55 Equipment Manual page 155

Additional information
You will find further information on the operating principle in chapters 3RW55 soft starter in
standard (inline) circuit and stopping function DC braking with one braking contactor
(Page 311) and 3RW55 soft starter in standard (inline) circuit and stopping function DC braking
with 2 braking contactors (Page 313).
Validity
This stopping mode is not available for the 3RW55 Failsafe soft starter.
Requirements
• In this braking variant, one output action of the 3RW55 soft starter must be changed over to
"DC brake contactor", through which an external braking contactor is controlled.
• 3RW55 soft starter in standard (inline) circuit
• Ex operation not active
Setting via 3RW5 HMI High Feature
• Menu: "Parameters > Soft Starter > Parameter set 1 / 2 / 3 > Stopping mode settings >
Stopping mode > DC braking"
• 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.
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
Functions
8.2 Run-down
155