ABF-15000 OL
910101-000320 / 09.2017
Page 11 of 19
ELECTRICAL CONTROL SYSTEM DESCRIPTION
The
ABF-15,000
control board monitors and operates the filter self-cleaning process. The self-cleaning process includes
simultaneous operation of the motor and opening of the exhaust valve. The control board will cause the initiation of a flushing cycle
as a result of each of the following reasons:
1.
Signal from the
PDS
.
2.
Manual initiation by
TEST / RESET
push-button.
3.
Internal timer, up to 30 hours.
During operation condition the Main switch, the Motor Protector and the
F2
Circuit Breaker must be "
ON
". In this condition the
power pilot light is lit.
Flushing by PDS:
The signal duration from the
PDS
should be longer than the preset time in timer
T0
. It is recommended to set it to 3-5 seconds.
This delay will prevent the filter from entering into flushing mode as a result of a momentary signal from the
PDS
.
Manual Operation:
Quick pressing on the
TEST / RESET
push button initiates self-cleaning.
Flushing according to Time:
The timer is located inside the control board and is marked
"T2"
.
It is possible to set it for intervals from a few minutes up to 30
hours.
To cancel the option of flushing by timer, turn off the
SW-1
switch.
Timer T1 determines the minimum flushing duration. It is recommended that flushing duration be set to 15 seconds.
Fault Mode:
The control board is equipped with a protection circuit. It will cause the filter to enter a "fault" mode if continuous signal from the
PDS
is received for duration longer than the preset time in
TAL
. This means that in case that the filter does not manage to clean
itself, the
PDS
will continue to send a signal. When the
TAL
time elapses, flushing stops, "fault" pilot light is lit and fault relay is
activated. It is possible to use this relay also for an alarm, automatic by-pass, etc.
To come out of fault mode, press the
TEST / RESET
push-button.
The recommended preset time for
TAL
is 5 minutes.
It is possible to order control boards with additional features such as sequential operation of a few filters in a battery, flushing
counter, etc.
Follow the drawing in this manual for proper wiring of the control board to the filter.
