ABB IRC5 Product Manual page 120

4 Repair activities, controller IRC5
4.4. Replacement of I/O units and Gateways
Continued
Refitting
The procedure below details how to refit the I/O units or Gateways.
118
Action
2.
esd
WARNING!
The unit is sensitive to ESD, before handling
the unit please observe the safety information
in section WARNING - The unit is sensitive to
ESD! on page 27
3. Identify the I/O unit or Gateway to be replaced.
4. Disconnect the connectors from the unit.
5. Tip the unit away from the mounting rail and
remove it.
Action
1.
DANGER!
Before any work inside the cabinet, please observe the
safety information in section
the main power has been switched off! on page
2.
esd
WARNING!
The unit is sensitive to ESD, before handling the unit
please observe the safety information in section
WARNING - The unit is sensitive to ESD! on page 27
3. Hook the unit back onto the mounting rail and snap it
gently in position.
4. Reconnect all connectors disconnected during removal.
Note/Illustration
Note which connector goes where, to
facilitate reassembly.
DANGER - Make sure that
26.
Note/Illustration
3HAC027707-001 Revision: D