6. Adjustments and Indications
TABLE 1. Description of Fault Indicators and their functions on the A1584
INDICATOR FUNCTION
COLOUR
COMMENTS
PROC
Processor Fault
Amber
Flashes whenever the processor fails to update the
external hardware watchdog and whenever a
memory error has been detected by the onboard
processor.
BATT
Battery Fault
Amber
Flashes whenever the battery input has a short
circuit, single battery connected, or battery voltage
rises above 29.5VDC.
L/BATT
Low Battery
Fault
Amber Flashes
whenever
standby power (battery) falls
below 19VDC.
CHARGE
Charger Fault
Amber
Flashes whenever battery is disconnected, battery
voltage is above intended charge voltage.
EARTH
Earth Fault
Amber
Flashes whenever a earth fault is detected.
5/8V
Regulated 5/8V
Fault
Amber
Flashes whenever 5VDC regulator output is above
9VDC and below 4VDC.
MAIN
Mains input
fault
Amber
Flashes whenever the DC input from the
switchmode unit falls below 28V DC or above
30VDC.
THERM
Thermistor
Fault
Amber
Flashes whenever Thermistor input resistance falls
outside its resistance range (800 Ohms to 52kOhms)
PSU OK
PSU Healthy
Green
Illuminates whenever unit is not displaying any
detected faults. Turns off whenever charger is
checking the presence of the battery.
TABLE2. Description of the User Controls and their function on the A1584
User Control
Designation/Location
Comments
EARTH CAP DISABLE
JP1
When link is removed the 10uF
Earth Capacitor is disabled.
EARTH FAULT DISABLE
JP2
When link is removed Earth
faults are disabled.
TEST LAMPS PROC FAULT
RESET
SW1
When pressed all the amber
fault LEDs illuminate except for
PROC fault. Also clears the
Memory Checksum Fault Flag
and clears the PROC Fault LED.
RESET PROC
SW2
Resets the on board processor
VSET
VR1
Manual adjustment for Battery
Charge voltage.
Document Ref: O&M15845T.DOC/Rev 0 22.11.99 Page 6 of 8 Originator KP Checked By Approved By
