Siemens SIKOSTART 3RW34 Instructions De Service page 59

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Fig. 20 : Setup Controls
Table 5 : Potentiometer Setting Values
Factory Settings:
3. SW1-3: This switch directs the soft starter software to operate the SCRs for either a Wye motor - In Line wiring
(left position) or a Star/Delta motor - Inside Delta wiring (right position).
When the switch set to "In Line", the motor must be operated in In
Line connection and when the switch is set to "Inside Delta", the
motor must be operated in Inside Delta connection!
Setting the switch to the wrong type of connection can cause very high
currents during operation. These currents can destroy or damage the SCRs
and other components. Be sure to set the soft starter only to the type of
connection actually used.
4. SW1-4: This switch sets the fault contact, which is a normally open contact,to respond to a fault by either closing
(arrow down position, switch to the left) or opening (arrow up position, switch to the right).
With the "open on fault" position selected, contact status is as follows:
Power off - contact is open
Power on - contact closes
Fault occurs or loss of power - contact opens
3ZX1012-0RW34-1AN1
T1
U
T2
SW1
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4
3
2
1
Initial Voltage U
Dial Setting
(% of Full Voltage)
0 30
1 33
2 36
3 40
4 43
5 46
6 50
7 53
8 56
9 60
A 63
B 66
C 70
D 73
E 76
F 80
T1 = 8 (15 sec)
T2 = 0 (0.5 sec)
U = 8 (56 %)
WARNING
SW1
SW1
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4
3
2
1
Ramp Time
T1, T2 (Seconds)
0.5
1.0
2.0
4.0
6.0
8.0
10
12
15
20
25
30
35
40
50
60
Setup and Operation
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