System Board Battery; Board Level Light Emitting Diodes; Single Board Computer - ABB PGC5000 Series Service Instructions Manual

PGC5000
PGC5000 Series Service Instructions
If the LEDs are not illuminated, check power to the unit. If the top LED is GREEN and flashing, the system is initializing.
For all other instances use the table below.
LED Red
Top Oven Idle
Middle DTC Malfunction
Purge Alarm
T-Rating Mismatch/Violation
Zone Temp Alarm/Violation
Zone Voltage Error
Bottom
FID/FPD Flame Out

5.2.3 System board battery

The System Board Battery is a small rectangular boxed object ("Snap Hat") located in the middle of the Single Board Computer
(SBC) in the Master Controller. In the unlikely event the battery fails, it can be replaced.
Failure symptoms: System Clock resets when system is powered off.
Removal procedures: Place fingers or tool on both sides of the battery. Apply equal force to both sides and pull it away from
the SBC.
Installation Procedures: Locate battery connection base on the SBC. Ensure all four connection pins are straight and free of
contaminants. Align pins with base, push in firmly.

5.3 Board level light emitting diodes

Most circuit boards installed in the Master Controller and Ovens are equipped with light emitting diodes (LEDs). The LEDs can
display ongoing activity (communications, activation, etc.) and some are programmed to display diagnostic error codes.
The displayed activity and error codes are used to troubleshoot or confirm the ongoing functions of the analyzer system.
Not all LEDs are assigned blinking response states. They are primarily used for debugging when no user interface is available.

5.3.1 Single board computer

The SBC PCB has eight LEDs, numbered CR1 through CR8 left to right (see Figure 5.3). These LEDs are connected to GPIO pins
on the MPC8309 processor and are turned on and off with firmware.
USB
Ports
Fig. 5.3. SBC LEDs
The USB Port Activity light identifies activity on the Universal Serial Busses. One is used to connect to the front panel.
SI/PGC5000-EN, Rev B
Amber
Future Use
Low Oven Air and/or
Carrier Gas Alarm
Future Use
Network
Activity
Health
Monitor
5 Diagnostics and troubleshooting
Green
Executing Analysis
DTC Operation Normal
FID/FPD Flame Ignited
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