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Operation and maintenance manual, Discfilter HSF2200-1/2F PFC
5.2 Automatic settings
The control system for the HSF2200 series must be equipped with a frequency converter on the
drive unit. This is factory calibrated if delivered from Hydrotech. The setting on the frequency
converter must be set for a minimum of 5 seconds “ramp up” and a minimum of 3 seconds “ramp
down” to give soft start on the drive motor. The filter works with 50 Hz as standard.
If the filter is equipped with a Hydrotech control system, the filter has two operation modes:
1. Continuous rotation (HAND mode)
2. Automatic level control (AUTO mode).
Turn the mode selector to select the operating mode (see E in Figure 5.1).
A
. DRUM DRIVE TRIPPED. LED that indicates
when the frequency converter has tripped.
B
. PUMP TRIPPED. LED that indicates when the
backwash water pump´s motor protection
device has tripped,
C
. DRY RUNNING. LED that indicates when the
dry running protection device for the back-
wash water pump has tripped.
D
. RESET DRY RUNNING. Resetting the dry run-
ning protection for the backwash water pump.
E
. OPERATION MODE. Mode selector.
F
. PUMP. Pump switch.
G
. CLEANING START. Chemical wash swich, key
operated.
H
. CLEANING. LED that indicates when the
chemical cleaning wash is in progress.
I
. CLEANING SEQUENCE. Selector for the num-
ber of sequences, chemical cleaning.
J
. Main power switch.
Figure 5.1 Front of the control cabinet.