9.2 LED display ...................................................................................................................... 247
9.2.1 Overview of the device LEDs on the 3RW55 and 3RW55 Failsafe soft starters .................... 247
9.2.2 Status and error displays .................................................................................................. 248
9.2.3 Overview of LEDs on High Feature 3RW5 HMI................................................................... 249
9.3 Warnings and remedial measures of the 3RW55 and 3RW55 Failsafe soft starters.............. 250
9.4 Errors and remedial actions of the 3RW55 and 3RW55 Failsafe soft starters....................... 252
9.5 Faults and remedial actions of the 3RW5 HMI High Feature............................................... 256
9.6 Performing diagnostics on the 3RW55 and 3RW55 Failsafe soft starters using the 3RW5 
HMI High Feature............................................................................................................. 257
9.7 Execute HMI diagnostics with the 3RW5 HMI High Feature................................................ 263
9.8 Performing diagnostics of the 3RW5 communication module with the 3RW5 HMI High 
Feature............................................................................................................................ 263
9.9 Self-test (user-test) .......................................................................................................... 264
9.10 Logbooks......................................................................................................................... 265
9.11 Save service data to micro SD card ................................................................................... 266
10 Maintenance and service .................................................................................................................. 269
10.1 Maintenance and repairs.................................................................................................. 269
10.2 Replacing the fan............................................................................................................. 269
10.3 Firmware update.............................................................................................................. 275
10.4 Performing rmware update with micro SD card (3RW5 HMI High Feature) ....................... 277
10.5 Restoring factory setting .................................................................................................. 278
10.5.1 Restoring the factory settings via High Feature 3RW5 HMI ................................................ 279
10.5.2 Restoring the factory settings with the Master RESET button via 3RW5 HMI High Feature... 280
10.6 "Device change" function ................................................................................................. 281
10.6.1 Device change with micro SD card on the 3RW5 HMI High Feature.................................... 282
10.6.2 Device change with SIRIUS Soft Starter ES (TIA Portal)....................................................... 283
11 Technical specications ..................................................................................................................... 285
11.1 Technical data in Siemens Industry Online Support........................................................... 285
12 Dimension drawings.......................................................................................................................... 287
12.1 CAx data.......................................................................................................................... 287
12.2 Drilling pattern for 3RW5 HMI High Feature ...................................................................... 287
13 Circuit diagrams................................................................................................................................. 289
13.1 CAx data.......................................................................................................................... 289
A Example circuits................................................................................................................................. 291
A.1 Main circuit connection.................................................................................................... 291
A.1.1 Feeder assembly, type of coordination 1 fuseless.............................................................. 291
A.1.2 Feeder assembly, type of coordination 1 with fuses .......................................................... 293
A.1.3 Feeder assembly, type of coordination 2........................................................................... 294
A.1.4 Inside-delta circuit ........................................................................................................... 295
Table of contents
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006 7