20
Operation and maintenance, Discfilter HPF2200-series PFLC
5.2 Automatic settings
The control system for the HPF2200 series must be equipped with a frequency converter on the
drive unit. This is factory calibrated if delivered from Hydrotech. To perform a soft start of the
drive motor, the frequency converter settings must be min. 5 sec “ramp up” and min. 3 sec ”ramp
down”. The filter works with 50 Hz or 60 Hz as standard, depending on region of delivery.
If the filter is equipped with a Hydrotech standard control, the filter has three operating modes:
1. Automatic level control (AUTO mode).
2. Remote control (REMOTE mode).
3. Service mode (HAND mode).
Turn the mode selector to select the appropriate operating mode (see Figure 5.2, detail F).
Figure 5.2 Front of the control cabinet.
A. Operator panel
B. Warning lamp: Fault indicator
C. Warning lamp: Chemical cleaning
D. Indicator lamp: Drum operation
E. Indicator lamp: Pump operation
F. Mode selector (Auto/Hand/Remote)
G. Emergency stop
H. Reset button for emergency stop
I. Main power switch
