ABB OmniCore C90XT - Page 214

NoteArticle numberEquipment
-ESD protective wrist band
Required documents
NoteArticle numberDocument
3HAC065464-009Circuit diagram - OmniCore C90XT
Note
The main computer is part of an assembly group, secured on a process plate.
To remove the computer, either lift out the assembly group and then remove the
computer, or take out the parts on top of the computer and then the computer
itself.
To remove the assembly group, see Removing the main computer by assembly
group on page 214.
To remove the modules on the top of the computer, see Removing the main
computer by parts on page 227.
Removing the main computer by assembly group
Preparations
Note/IllustrationAction
DANGER
Before doing any work inside the cabinet,
disconnect the mains power. For more
information, see Electrical safety on
page 31.
1
Opening the door on page 174.Open the door.2
Location of wrist strap button:
ELECTROSTATIC DISCHARGE
(ESD)
The unit is sensitive to ESD. Before
handling the unit read the safety inform-
ation in section The unit is sensitive to
ESD on page 43.
3
xx1900001446
Continues on next page
214 Product manual - OmniCore C90XT
3HAC073706-001 Revision: D
© Copyright 2020-2021 ABB. All rights reserved.
5 Repair
5.2.8 Replacing the main computer
Continued