Replacing The I/O Expansion Board; Restore Power - ABB Totalflow G5 Series Application Manual

3.3

Restore power

To restore power to the µFLO
wiring connections should be complete. Do not restore power until ready to restart
the flow computer.
1. Reconnect the battery cable plug from J15.
2. Reconnect the external power / charger connector from J17 (Figure 1, on page
5).
3.4

Replacing the I/O expansion board

3.4.1 Remove the I/O expansion board
To remove the I/O expansion board:
1. Follow the procedure in section 3.1, Preserving data and configuration files, on
page 5. Return here when completed.
2. Follow the procedure in section 3.2, Disconnect power, on page 5. Return here
when completed.
3. If removing the I/O expansion board as part of another service procedure, it may
not be necessary to disconnect the field wiring. Otherwise, disconnect the
following field wiring connections on the I/O expansion board (Figure 2):
a. Communication wiring from J2
b. DI wiring from J9
c. DO wiring from J5
d. AI #1 wiring from J4
e. AI #2 wiring from J8.
IMPORTANT NOTE: Do not unplug the lithium battery connector from
the electronic board unless or until instructed to do so.
To maintain the continuity of the flow computer date and time stored in
RAM memory and for the purposes of record keeping, the lithium
battery must remain connected.
6 | 2105514-001 rev. AB
G5
electronic board, all cables and onboard and field