Replacing The Main Electronic Board - ABB XSeriesG4 User Manual

Insert new battery pack into battery compartment. Battery pack must be positioned so its longest dimension fits snugly
against keeper plate when plate is installed.
Reinstall the keeper plate and tighten the three keeper plate mounting screws. Or close the hinged plate and insert
and tighten the upper and lower plate keeper.
Reconnect the battery pack cable to the flow computer panel connector J1 (Figure 86, XFCG4 Electronic Board
Maintenance Connections, page 114).
Reconnect the battery charger to the flow computer panel terminals EXT CHGR +/- terminals J5 (Figure 86, XFCG4
Electronic Board Maintenance Connections, page 114).
Close the flow computer door
Check the door mounted LCD for normal operational readings.

6.8 Replacing the Main Electronic Board

The XSeries main electronic board is mounted to the backside of the flow computer access door on standoffs (Figure 87: or
Figure 88). On models XFC
CAUTION – Property damage. The flow computer board is susceptible to damage by static electricity or
!
improper handling. To prevent this from occurring, a grounding strap should be worn.
A grounding strap is a conductive device used to make connection between the person handling the board, and
a high quality ground point. Before handling the board you must install ground strap on your body then connect
it to a grounded point. This discharges electrical static buildup from the body to ground, preventing static from
discharging to the board.
Before removal of flow computer board, save historical flow data and configuration file to an external storage
medium. Failure to do so could result in data loss when the board is removed.
To replace the circuit board:
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
Verify "LL" battery alarm is not being displayed on the LCD.
Measure the lithium battery with a Multi Meter ensuring it is > 3.0V.
Disconnect the battery charger from terminals EXT CHGR +/- J5 (Figure 89, XFCG4 Removable Board Connections
for Maintenance, page 119).
Disconnect the Battery Cable from panel connector J1.
Disconnect the communication connector(s) J3, J18 or J15 (Figure 89).
Disconnect the XIMV Port connector J9.
Disconnect the XFC
NOTICE-Equipment Damage. DO NOT lift connectors upward, damage may result.
Slide, to the right, green terminal strips J4, J6, J7, and J8 (Figure 89) from their associated flow computer panel
Connector.
Remove the cable from J15 (Figure 89). If optional TFIO modules are installed.
G4 G4
6713 and XFC 6714, the XFC
G4
LCD port connector J2 (Figure 89).
117
G4
board is mounted below the LCD Screen.
XFC G4 2103335 Rev AB