Removing the power unit
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
Removing the power unit
Note/IllustrationAction
Disconnect:
• A1.X13 - K2.X10
• A1.X9 - K2.X4
• A1.X4 - T4.X5
• A1.X5 - T4.X1
• A1.X12 - T4.X3
• A1.X1 - Power inlet (X0)
• A1.X6 A1.X7-T2.X1 and AC Termin-
al block
1
Continues on next page
Product manual - OmniCore C90XT 243
3HAC073706-001 Revision: D
© Copyright 2020-2021 ABB. All rights reserved.
5 Repair
5.2.9 Replacing the power unit
Continued
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