Regular Maintenance; Tools Required; Service And Repair; Weights - ABB PSTX 30***105 Service Manual

2.1 Description
This chapter outlines general information and procedures
necessary for performing maintenance on Softstarters
PSTX720...840.
CAUTION
Do not open the Softstarter or touch any live parts
when the main and supply voltage is connected.
WARNING
If using the Rated Operational Voltage (Phase /N)
2
as source for Control Voltage make sure to not
exceed U 250V AC,50/60Hz.
s
2.1.1

Regular maintenance

Check screws
• Make sure that all mounting screws are tightened.
• Make sure that all connections of main-, control- and
supply circuits are tightened.
• Make sure that all terminal screws and the screws on
the connection bars are tightened.
• Make sure that the cooling airways are free from dirt
and dust.
• Make sure that all LED lamps are working.
• Make sure that the HMI display is working.
Keep Softstarter clean from dirt
• Clean all dust and dirt from the products exterior
using a vacuum cleaner. Any buildup of dirt or other
contaminates that will not come off with vacuuming
should be cleaned with lint free rags.
• All vents are to be cleaned of all dust and/or dirt.
Ensure that ventilation openings are not obstructed.
Dust and/or dirt in the Softstarter could lead to a short
circuit.
• In environments where there is an extreme exposure to
adverse conditions, the frequency of regular
maintenance for Softstarters should be increased.
If the Softstarter is installed in an electrical equipment
room, the area should be kept cleaned of dirt and/or
dust on a regular basis.
• The top of the Softstarter should be examined for
evidence of water seepage. The source of the water
should be immediately identified and corrective
measures taken to permanently correct the condition.
Check the By-pass Contactor
• Inspect for loose, broken, or worn parts. Examine for
excessive wear of moving parts. Observe that
operating mechanisms function properly without
binding, hanging, or without delayed action. Ensure
mechanisms are clean, and all screws and screws are
properly secured. Repair or replace if necessary.
• Check contacts on Softstarters for signs of wear and
replace as required.
Service for By-pass Contactors
See the following operating instructions:
For PSTX720...840 1SFC 380023-en.
Description | Service Manual |
10
2.1.2
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2.1.3
In case the Softstarter has to be repaired, a spare parts
list and necessary instructions are available at:
www.abb.com/lowvoltage.
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2.1.4
Table 4
Type
PSTX 30...105
PSTX 142...170
PSTX 210...370
PSTX 470
PSTX 570
PSTX 720...840
PSTX 1050
PSTX 1250
1SFC13105M0201

Tools required

Slotted screwdriver
Slotted screwdriver M3
Long-nose plier
Torx 15
Torx 20
Torx 30
Hexagon no. 4 Screwdriver
Hexagon no. 8 Screwdriver
Hexagon M10 socket wrench
Abrasive cloth P600
Ethanol
Silicone oil
Megger to set on 500V

Service and repair

Spare part list 1SFC001013C0201
Service and repair shall be performed by
authorized personnel only. Note that unauthorized
service and/or repair affects the safety and the
warranty.

Weights

CAUTION
Pay attention to the weight when handling the
Softstarter. Heavy lifting could result in personal
injury.
Weight in kg
6,1
9,6
12,7
25,5
27,5
46.2
64.5
65
Weight in lbs
13,5
21,2
27,9
56,2
60,6
101.4
141.1
143.3