Xylem SSW-07 Soft-Starter - Manual (Page 52)

CHAPTER 6 - SOLUTION AND TROUBLESHOOTING
51
English
6.3 PREVENTIVE
MAINTENANCE
WARNING!
Always disconnect the general power supply before touching any
electric component associated to the Soft-Starter SSW-07.
Do not apply any high voltage tests on
the Soft-Starter SSW-07!
If necessary, consult the manufacturer.
Do not use megometers to test thyristors.
Periodic inspections of Soft-Starters SSW-07 and installations
are necessary to avoid operating problems due to unfavorable
environmental conditions like high temperature, moisture, dust,
vibrations or due to the aging of the components.
When the SSW-07 Soft-Starter is stored for a long period of time, it
is recommended that it be energized for 1 hour, each year.
Component Abnormality Corrective Action
Terminals, Connectors Loose screws Tightening
(1)
Loose connectors
Fans / Ventilation Systems Dirty fans Cleaning
(1)
Abnormal noise Substitute fan
Fan always off
Abnormal vibration
Dust in the air filters Cleaning or substitution
(2)
Power Module / Power
Connections
Accumulated dust, oil, moisture, etc. Cleaning
(1)
Screws with loose connections Tightening
(1)
table 6.3 - Periodic inspections after putting into use
(1) Every six months.
(2) Twice a month.