Removing the power unit
Preparations
Note/Illustration
Action
DANGER
Before doing any work inside the cabinet,
disconnect the mains power. For more
information, see
1
.
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
3
xx1900001446
Removing the power unit
Note/Illustration
Action
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
249
3HAC073706-001 Revision: E
© Copyright 2020-2021 ABB. All rights reserved.
5 Repair
5.2.9 Replacing the power unit
Continued
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