Figure 86: Xfc Electronic Board Maintenance Connections - ABB XSeriesG4 User Manual

6.7.1 Step by Step Instructions
In the following procedure, the common name for a component or its jumper number if available (abbreviated J) or part is
followed by a number in parentheses. This refers to the call out item number referenced on each drawing.
To replace the flow computer battery pack:
Connect the PC running PCCU32 to the flow computer with either an MMI cable (RS-232), a USB cable or an
Ethernet cable.
Open PCCU.
Collect the data from the unit as described in section 6.2.1, Data collection (page 108).
Back up configuration files as described in section 6.2.2, Back up configuration files (save) in page 108.6.2.2
Ensure the J13 memory backup jumper covers the top two pins (Figure 86). This enables the memory backup.
Verify "LL" battery alarm is not being displayed on the LCD
Measure the lithium battery with a Multi Meter ensuring it is > 3.0V.
Lithium Battery Enable
NOTICE – Loss of data. When removing the battery, do not remove, or disable the lithium battery from the
board. This will prevent any historical data from being lost.
Disconnect the battery charger from the XFC
Disconnect the Battery Cable from the XFC
Loosen the three mounting screws. Note: It is not necessary to completely remove the screws.
Remove the battery compartment cover (Figure 87: item 18).
J15 I/O EXP
ON
S1
OFF
(-)
J13
BT1 Jumpering across pins 1 & 2 of J1 enables
lithium backup of RAM memory. If lithium
backup is disabled, powering the unit
down will cause a Cold Boot.
(+)
J9
1
14
G4
Figure 86: XFC Electronic Board Maintenance Connections
G4
G4
114
J1
J5
J4
13
25
XIMV INTERFACE
panel terminals EXT CHGR +/- J5.
panel connector J1, before removing the battery pack.
XFC G4 2103335 Rev AB