On-Site Service Instructions
Document nbr
3AXD10000303478
ABB Oy, Drives Service
ACx580-01 R0-R5
Related to material
Department
Date
Revision
Page
ESP300
13.08.2018
F
5 (41)
© Copyright 2018 ABB Oy. All rights reserved. Specifications subject to change without notice.
2. Preventive maintenance actions
2.1 Heat sink temperature check and cleaning
Need for heat sink temperature check and cleaning depends on the dustiness of the environment.
The heat sink fins pick up dust from the cooling air. The drive runs into over temperature warnings
and faults if the heat sink is not clean. Too high operating temperature causes faster aging of the
drive components. In a normal environment the heat sink should be checked annually and cleaned if
needed, in a dusty environment more often. Heat sink must also be cleaned when replacing a cooling
fan.
NOTE! Compressed air or normal vacuum cleaner must NOT be used to clean any other parts of the
drive than heat sink only. Airflow causes a high risk of ESD damage to components. Fan must also be
removed before cleaning with compressed air. Otherwise strong air flow will affect fan bearings.
2.1.1 Heat sink cleaning
a. Turn off the main input power of the drive
b. Remove the cooling fan
c. Blow clean dry compressed air from the bottom
d. Use a vacuum cleaner on top to trap the dust
e. Install the cooling fan
