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5 Repair
5.2.12 Replacing the fieldbus master
Continued
Removing the fieldbus master
Preparations
1
2
3
Removing the main computer assembly
1
Continues on next page
272
Note
The fieldbus master is part of an assembly group, secured on a process plate.
To remove the fieldbus master, either lift out the assembly group and then remove
the fieldbus master, or take out the parts on top of the main computer and then
remove the fieldbus master.
Action
DANGER
Before doing any work inside the cabinet,
disconnect the mains power. For more
information, see
Electrical safety on
page
30.
Open the door.
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.
Action
Disconnect all the connectors on the as-
sembly group of the robot signal ex-
change proxy, Ethernet switch (option),
connected services gateway, and main
computer.
© Copyright 2020-2021 ABB. All rights reserved.
Note/Illustration
Opening the door on page
Location of wrist strap button:
xx1900001446
Note/Illustration
Product manual - OmniCore C90XT
3HAC073706-001 Revision: E
180.
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Table of Contents
Troubleshooting
