ABB PSTX30 Installation And Commissioning Manual page 12

This chapter is a short guide on how to connect, configure
and start the softstarter in an easy way.
This product has been carefully manufactured and tested,
but there is a risk that damage can occur from abnormal
handling during transportation. Therefore, the instructions
below must be followed:
CAUTION
Hazardous voltage: Can cause death or serious
injury. Always turn off and lock out all power that
supply this device before you start to work on the
2
equipment.
WARNING!
Mounting and fastening of electrical connections
must be made by authorized personnel and in
accordance with existing laws and regulations.
WARNING!
Before you connect the softstarters PSTX30...
PSTX170 to operational voltage for the first time,
apply control supply voltage in order to open the by-
pass relays. (see step 6 in chapter 2.1 Connection).
Opening the by-pass relays is necessary to avoid
unintentional starting of the equipment while it is
being connected to operational voltage.
INFORMATION
ABB personell have to obey the instructions in
ABB CISE 15.4.
2.1 Connection
1. Mount the softstarter according to chapter 4
Mounting.
INFORMATION
PSTX softstarters can be connected both In Line
1
and Inside Delta
2. Connect the main circuit: terminals 1L1 - 3L2 - 5L3
to the line side
to the motor side
connection for PSTX30-105, see Figure 2
and terminal connection for PSTX 142-370,
see Figure 3.
3. Connect the line side to terminals 1L1, 3L2, 5L3.
1
Figure 2 and 3. Connect the motor to
see
terminals 2T1, 4T2, 6T3 on the motor side, see
Figure 2 and 3
INFORMATION
Use only wires of the same dimension when you
connect 2 wires to each terminal. (Possible for
PSTX30...105 only).
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2
, see Figure 1.
1
, and terminals 2T1 - 4T2 - 6T3
2
, see Figure 2. Use wire
1
1
PSTX
Figure 1: In Line (1) and Inside Delta (2) connection
2
5L3
3L2
1L1
1
Line side
Figure 2: Terminal connection clamps.
3
5L3
3L2
1L2
1
Line side
2
Figure 3: Terminal connection bars
2
PSTX
Motor side
2
2T1
4T2
6T3
2
Motor side
2T1
4T2
6T3