ABB IRC5 Product Manual page 165

Removal
The procedure below details how to remove the I/O units or gateway units.
1
2
3
4
5
Refitting
The procedure below details how to refit the I/O units or gateway units.
1
2
3
4
5
Product manual - IRC5 Panel Mounted Controller
3HAC047137-001 Revision: AB
Action
DANGER
Before doing any work inside the cabinet,
disconnect the mains power. For more inform-
ation, see Electrical safety on page
ELECTROSTATIC DISCHARGE
(ESD)
The unit is sensitive to ESD. Before handling
the unit read the safety information in section
The unit is sensitive to ESD on page
Identify the I/O unit or gateway unit to be re-
placed.
Disconnect the connectors from the unit.
Tip the unit away from the mounting rail and
remove it.
Action
DANGER
Before doing any work inside the cabinet, disconnect the mains power. For more in-
formation, see Electrical safety on page
ELECTROSTATIC DISCHARGE (ESD)
The unit is sensitive to ESD. Before handling the unit read the safety information in
section The unit is sensitive to ESD on page
Hook the unit back onto the mounting rail and snap it gently in position.
Reconnect all connectors disconnected during removal.
Perform the function tests in section
features work properly.
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4.3 Replacement of I/O units and Gateways
Note/illustration
35.
48.
Note which connector goes where, to
facilitate reassembly.
35.
48.
Function tests on page 148
4 Repair
Continued
to verify that the safety
165