Control System 27Service Manual – SC3000
Function Electronic Board Alarm Codes (continued)
Other alarm indications on the display
Alarm Code
on the
display
Meaning Condition
“---” Water level signal missing or not as specied. Pressure switch module output higher than 4.0 Volt.
“888”
Serial communication problem between dashboard electronic
board and function electronic board.
Signal missing or errors.
Off Dashboard electronic board power supply missing. Voltage between J1.1 and J1.4 less than 12 Volt.
Black-box: Record of Alarms, Battery Management Parameters (see page 32
- 33), Partial Hour Counter
The data indicated in the following table (ALARMS, BATTERY MANAGEMENT DATA) are stored in the non-
volatile memory of the electronic board and can be recalled and displayed by the external programmer (ITAL-
SEA UNIVERSAL PROGRAMMER, NILFISK P/N 9097297000) connect to port J9. For each stored datum
(event) the value HOURS.MINUTES of the TOTAL hour counter is associated when the alarm occurred. The
last 20 events are stored. When the total number of events is used up, the next events overwrite the older ones.
The data are shown on the programmer display, listed by decreasing order (starting from the latest) as: DA-
TUM - HOUR (1 per page). The UP and DOWN buttons are used to select 1 page at a time. All the stored paged
can be scrolled. The “info” button shows the DATUM - EVENT DESCRIPTION for the selected line.
DATUM EVENT DESCRIPTION Condition
G2 EEPROM error See alarm code description
G3 General thermal protection See alarm code description
G4 Blown F2 fuse See alarm code description
G5 Wrong KEY sequence See alarm code description
G6 No signal from BATTERY CHARGER See alarm code description
G7 Battery undervoltage See alarm code description
G8
Serial communication error with dashboard electronic
board
See alarm code description
G9 Battery voltage drop See alarm code description
F2 Brush motor protection intervention See alarm code description
F3 VACUUM SYSTEM overcurrent See alarm code description
F4 DECK ACTUATOR position irregularity See alarm code description
F5 VACUUM SYSTEM power section damage See alarm code description
F6 PRESSURE SWITCH signal fault See alarm code description
F7 VACUUM SYSTEM output short circuit See alarm code description
F8 Function general relay fault See alarm code description
t2 Drive system amperometric protection intervention See alarm code description
t3 Electromagnetic brake not present See alarm code description
t5 Drive system power section damage See alarm code description
t6 Pedal input not admitted See alarm code description
t7 Drive system overcurrent See alarm code description
t8 Drive system relay fault See alarm code description
GB-N Time of continuous use with discharged batteries
“N” is the number of hours from the key switching ON and OFF
during the battery level is under 18,4 Volt for WET, 19,6 for
AGM. This event is not recorded if the above time is less than 10
minutes.
GC Charging cycle interrupted before completion
Battery charger disconnection before PHASE IV (= with red or
yellow LED on)
GD-N Charging phase duration
N = Number of hours from battery charger connection to
completion of PHASE II (red LED on) if < 4
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