Softstart Circuit and Application DiagramPST30…300PSTB370…1050

1SFC132035M0201 Mars-07

ContentsSTANDARD DIAGRAM............................................................................................................................................. 3

1.1 CIRCUIT DIAGRAM........................................................................................................................................... 31.1.1 PST30…300............................................................................................................................................ 31.1.2 PSTB370…1050...................................................................................................................................... 4

2 APPLICATION DIAGRAM................................................................................................................................ 6

2.1 IN LINE WITH MAIN CONTACTOR...................................................................................................................... 62.1.1 PST30…300............................................................................................................................................ 62.1.2 PSTB370…1050...................................................................................................................................... 7

2.2 IN LINE WITH MAIN CONTACTOR CLOSED ONLY DURING OPERATION.................................................................82.2.1 PST30…300............................................................................................................................................ 82.2.2 PSTB370…1050...................................................................................................................................... 9

2.3 IN LINE WITH MAIN CONTACTOR AND BY-PASS..............................................................................................102.3.1 PST30…300.......................................................................................................................................... 10

2.4 IN LINE WITH MAIN CONTACTOR CLOSED ONLY DURING OPERATION AND BY-PASS..........................................112.4.1 PST30…300.......................................................................................................................................... 11

2.5 IN LINE WITH REVERSING.............................................................................................................................. 122.5.1 PST30…300.......................................................................................................................................... 122.5.2 PSTB370…1050.................................................................................................................................... 13

2.6 IN LINE WITH BY-PASS AND REVERSING........................................................................................................ 142.6.1 PST30…300.......................................................................................................................................... 14

2.7 IN LINE WITH POLE-CHANGING (FOR MOTOR WITH TWO WINDINGS)...............................................................152.7.1 PST30…300.......................................................................................................................................... 152.7.2 PSTB370…1050.................................................................................................................................... 16

2.8 IN LINE WITH POLE-CHANGING AND BY-PASS (FOR MOTOR WITH TWO WINDINGS).........................................172.8.1 PST30…300.......................................................................................................................................... 17

2.9 IN LINE WITH POLE-CHANGING (FOR MOTOR WITH ONE WINDING) (DAHLANDER)...........................................182.9.1 PST30…300.......................................................................................................................................... 182.9.2 PSTB370…1050.................................................................................................................................... 19

2.10 IN LINE WITH POLE-CHANGING AND BY-PASS (FOR MOTOR WITH ONE WINDING) ( DHALANDER)....................202.10.1 PST30…300.......................................................................................................................................... 20

2.11 IN LINE WITH MAIN CONTACTOR FOR START OF TWO MOTORS IN PARALLEL....................................................212.11.1 PST30…300.......................................................................................................................................... 212.11.2 PSTB370…1050.................................................................................................................................... 22

2.12 IN LINE WITH MAIN CONTACTOR CLOSED ONLY DURING OPERATION FOR START OF TWO MOTORS IN PARALLEL232.12.1 PST30…300.......................................................................................................................................... 232.12.2 PSTB370…1050.................................................................................................................................... 24

2.13 IN LINE WITH MAIN CONTACTOR AND BY-PASS FOR START OF TWO MOTORS IN PARALLEL..............................252.13.1 PST30…300.......................................................................................................................................... 25

2.14 IN LINE WITH MAIN CONTACTOR CLOSED ONLY DURING OPERATION AND BY-PASS FOR START OF TWO MOTORS IN PARALLEL............................................................................................................................................................. 26

2.14.1 PST30…300.......................................................................................................................................... 262.15 IN LINE FOR SEQUENTIAL START OF TREE MOTORS, NO SOFTSTOP...................................................................27

2.15.1 Main Circuit PST30…300..................................................................................................................... 272.15.2 Control Circuit PSTB30…300............................................................................................................... 282.15.3 Main Circuit PST370…1050................................................................................................................. 292.15.4 Control Circuit PSTB370…1050........................................................................................................... 30

2.16 INSIDE DELTA................................................................................................................................................ 312.16.1 PST30…300.......................................................................................................................................... 312.16.2 PSTB370…1050.................................................................................................................................... 32

2.17 INSIDE DELTA WITH MAIN CONTACTOR CLOSED ONLY DURING OPERATION.....................................................332.17.1 PST30…300.......................................................................................................................................... 332.17.2 PSTB370…1050.................................................................................................................................... 34

2.18 INSIDE DELTA WITH BY-PASS......................................................................................................................... 352.18.1 PST30…300.......................................................................................................................................... 35

2.19 INSIDE DELTA WITH MAIN CONTACTOR CLOSED ONLY DURING OPERATION AND BY-PASS................................362.19.1 PST30…300.......................................................................................................................................... 36

- 2 -

Standard Diagram 1.1 Circuit Diagram1.1.1PST30…300

- 3 -

1.1.2PSTB370…1050

- 4 -

- 5 -

2 Application Diagram2.1 In Line with main Contactor2.1.1PST30…300

- 6 -

2.1.2PSTB370…1050

- 7 -

2.2 In Line with main Contactor closed only during operation2.1.3PST30…300

- 8 -

2.1.4PSTB370…1050

- 9 -

2.2 In Line with main Contactor and By-pass2.2.1PST30…300

- 10 -

2.3 In Line with main Contactor closed only during operation and By-pass

2.3.1PST30…300

- 11 -

2.4 In Line with Reversing2.4.1PST30…300

- 12 -

2.4.2PSTB370…1050

- 13 -

2.5 In Line with By-pass and Reversing2.5.1PST30…300

- 14 -

- 15 -

2.6 In Line with Pole-changing (For motor with two windings)2.6.1PST30…300

- 16 -

2.6.2PSTB370…1050

- 17 -

2.7 In Line with Pole-changing and By-pass (For motor with two windings)

2.7.1PST30…300

- 18 -

- 19 -

2.8 In Line with Pole-changing (For motor with one winding) (Dahlander)

2.8.1PST30…300

- 20 -

- 21 -

2.8.2PSTB370…1050

- 22 -

2.9 In Line with Pole-changing and By-pass (For motor with one winding) ( Dhalander)

2.9.1PST30…300

- 23 -

- 24 -

2.10 In Line with main Contactor for start of two motors in parallel2.10.1 PST30…300

- 25 -

2.10.2 PSTB370…1050

- 26 -

2.11 In Line with main Contactor closed only during operation for start of two motors in parallel

2.11.1 PST30…300

- 27 -

2.11.2 PSTB370…1050

- 28 -

2.12 In Line with main Contactor and By-pass for start of two motors in parallel

2.12.1 PST30…300

- 29 -

- 30 -

2.13 In Line with main Contactor closed only during operation and By-pass for start of two motors in parallel

2.13.1 PST30…300

- 31 -

- 32 -

2.14 In Line for Sequential start of tree motors, no softstop2.14.1 Main Circuit PST30…300

- 33 -

2.14.2 Control Circuit PSTB30…300

- 34 -

2.14.3 Main Circuit PST370…1050

- 35 -

2.14.4 Control Circuit PSTB370…1050

- 36 -

2.15 Inside Delta2.15.1 PST30…300

- 37 -

2.15.2 PSTB370…1050

- 38 -

2.16 Inside Delta with main Contactor closed only during operation2.16.1 PST30…300

- 39 -

2.16.2 PSTB370…1050

- 40 -

2.17 Inside Delta with By-pass2.17.1 PST30…300

- 41 -

2.17.22.18 Inside Delta with main Contactor closed only during operation and

By-pass2.18.1 PST30…300

- 42 -

- 43 -

- 44 -

ABB Automation Technologies AB, CEWE-ControlS-721 61 Västerås, SWEDEN

- 45 -

Telephone +46 21 32 07 00TELEFAX +46 21 12 60 01

- 46 -