ABB PSTX1250 Series Quick Start Manual page 3

1. PSTX470...570
- Replace the SCR's
WARNING
Always make sure that the power supply is
switched off before doing maintenance on the
Softstarter.
1
1
Tx 20
M4x12
3
2
4
1
7
10
2
Tx 15
M3,5x12
4
5
Tx 20
M4x8
2
2
8
Hexagon n.16
M10
11
UP
DOWN
WARNING
When performing maintenance on the Softstarter,
an antistatic strap must be used. The antistatic
strap should be worn on the wrist, and be
connected to an electrical ground, to prevent
electrostatic discharge (ESD) damage to the
Softstarter.
3
6
1
3
9
12
Hexagon n.16
M10
PSTX
570
x2
1SFC132102M0201 | Spare part instruction - Replace the SCR's
1
2
1 2
1
2
Tighten nuts 1/2 lap alt. until indicator
is fastened, then turn 1/4 lap more.
Tx 30
M6x16
M6x25
Hexagon n.16
M10
1/4
| 3