Example circuits
A.1 Main circuit connection
SIRIUS 3RW50 soft starter
Manual, 09/2019, A5E35628455002A/RS-AA/001
205
A.1.3
Feeder assembly, type of coordination 2
Feeder assembly, type of coordination 2
In order to achieve type of coordination 2, you must provide protection for all thyristors
against short circuits by means of special semiconductor fuses (e.g. SITOR fuses from
Siemens). A short circuit can occur, for instance, as a result of a defect in the motor windings
or in the motor's power supply cable.
Q1
Motor starter protector
F3
aR partial-range fuse for protection of semiconductors (e.g. SITOR 3NE3/4 or 3NC3)
F3*
gR full-range fuse for protection of semiconductors (e.g. SITOR 3NE1)
Q11
3RW50 soft starter
M1
Motor
PE
Protective conductor
Содержание SIRIUS 3RW50
Страница 8: ...Table of contents SIRIUS 3RW50 soft starter 8 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 38: ...Description 1 13 Support Request SIRIUS 3RW50 soft starter 38 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 90: ...Connecting 4 11 COM connection cable SIRIUS 3RW50 soft starter 90 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 160: ...Functions 7 12 3RW5 HMI High Feature SIRIUS 3RW50 soft starter 160 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 184: ...Messages and diagnosis 8 11 Logbooks SIRIUS 3RW50 soft starter 184 Manual 09 2019 A5E35628455002A RS AA 001 ...
Страница 202: ...Circuit diagrams 12 1 CAx data SIRIUS 3RW50 soft starter 202 Manual 09 2019 A5E35628455002A RS AA 001 ...