AGRICOW 121665 Mode D'emploi page 21

shows the letters "R" or "L" to indicate the sense of rotation.
Control of current
The device checks the current absorbed by the motor to establish if the brush is functioning correctly. Every time
the current exceeds the threshold set by the Trimmer R22, the brush inverts rotation (motor block/failure
condition); if this situation is repeated more than 5 times at intervals of less than 6 seconds, the SL49 enters a
condition of alarm identified by the message "5" on the display.
The same situation could occur when the board does not detect variations of the current, passing from motor
off to motor on (situation of motor disconnected/burnt out or board failure). In this case, however, the system
enters the condition of alarm immediately without waiting for the event to be repeated more than 5 times and
the display shows message "4". If one of these two alarms occur, the SL49 remains in the condition for about 4
minutes, then returns to normal functions.
Checks on over and under-voltage
The SL49 board constantly monitors the voltage supply (230/115V) and switches off the brush if this reaches
values that could damage the electronic board or the motor. These conditions of alarm are identified by the
messages "1" and "2" on the display; the SL49 remains in one of these two conditions as long as the alarm
persists.
Checks on overheating
The SL49 board constantly monitors the temperature inside the container, switching off the brush if it exceeds
75°C; the display shows message "3" and the SL49 remains in this condition as long as the alarm persists.
DESCRIPTION OF LEDS
Ref. Colour Description
DL1 RED Presence of voltage supply.
DL2 GREEN On: inclination sensor at rest (brush stopped
after time out). Off: inclination sensor active
(brush in operation).
DESCRIPTION OF DISPLAY MESSAGES
Characte Description
r
dot Flashing, board active, awaiting work cycle
r Motor in direct sense of rotation
L Motor in inverted sense of rotation
1 Over-voltage alarm; above 270V for brushes at 230V, 140V for
115V
2 Under-voltage alarm; less than 180V for brushes at 230V, 85V for
115V
3 Over-heating alarm; more than 75°C inside the container
4 Motor disconnected/burnt out alarm
5 Motor block alarm
Technical data
Name
Voltage supply
Maximum motor
capacity
Running time
Peak current threshold
(R22)
Operating temperature
Motor protection
SL49
230VAC 50/60HZ
1HP
90 sec
0A - 12Arms
-15°C - +55°C
Fusibile 10A
19
SL49A
115VAC 50/60HZ
0,75HP
90 sec
0A - 12Arms
-15°C - +55°C
Fusibile 12A