Connection
Chapter 5
45
1SFC132003M0201
5:2.1.1 External By-Pass contactor
An external by-pass contactor can be used for softstarters
size PST30...300 (built in for size PSTB370...1050).
Connect the contactor to terminals B1, B2, and B3 on the line
side and terminals 2T1, 4T2, and 6T3 on the motor side.
The terminal marking is printed on the front label.
If an external By-pass contactor is used an output relay
should be configured as TOR and be connected to the
contactor. The by-pass contactor is then activated when the
voltage reaches 100% and the current has been below 1.2 x I
e
continuously for 1 s or after a 3 s timeout.
Do not use terminals B1, B2 or B3 for the “Inside Delta”
connection. The current measurement will be wrong.
5:2.1.2 Protective earthing
Softstarters type PST85...PSTB1050 should be earthed
using the terminals as shown in Figure 5 (one connection is
sufficient).
Warning!
Do not operate machine with the grounding wire
disconnected.
1
100-250V
Stop
Start
In0
In1
Vc
50/60 Hz
2 3
4 5
6
7
8
9
10
Vp
Vp
11
K4
12
13
14
Vn
15
16
K5
17
18
19
K6
20
B1
B2
B3
1SFC132049F0001
Figure 4: Connection of external by-pass
contactor
Figure 5: Protective earthing
Summary of Contents for PST30
Page 2: ...This manual belongs to...
Page 4: ......
Page 8: ...Chapter 8 1SFC132003M0201 Notes...
Page 10: ...Introduction 10 1SFC132003M0201...
Page 14: ...Introduction Chapter 1 14 1SFC132003M0201...
Page 16: ...Quickstart 16 1SFC132003M0201...
Page 20: ...Description 20 1SFC132003M0201...
Page 34: ...Description Chapter 3 34 1SFC132003M0201...
Page 36: ...Mounting 36 1SFC132003M0201...
Page 40: ...Mounting Chapter 4 40 1SFC132003M0201...
Page 42: ...Connection 42 1SFC132003M0201...
Page 60: ...Connection Chapter 5 60 1SFC132003M0201...
Page 62: ...Human Machine Interface HMI 62 1SFC132003M0201...
Page 74: ...Human Machine Interface HMI Chapter 6 74 1SFC132003M0201...
Page 76: ...Setting and configuration 76 1SFC132003M0201...
Page 120: ...Fieldbus communication option 120 1SFC132003M0201...
Page 124: ...Maintenance 124 1SFC132003M0201...
Page 126: ...Maintenance Chapter 9 126 1SFC132003M0201...
Page 130: ...Chapter 130 1SFC132003M0201...
Page 178: ...Trouble shooting 178 1SFC132003M0201...
Page 188: ...Trouble shooting Chapter 11 188 1SFC132003M0201...
Page 190: ...Diagrams 190 1SFC132003M0201...
Page 199: ......