Circulation pump for heating and solar
8. PWM speed control
PWM 1 signal
Automatic detection if PWM signal is applied, indicated by the
flashing of the P-LED in the display.
Max
Min
Stop
PWM 1
Input signal (%)
0
1 –10
11 – 84
85 – 91
91 – 95
95 – 100
Highly efficient. Simple. Good!
PWM input signal (%)
Pump status
No PWM signal. The pump enters non-PWM mode
(Auto mode).
The circulation pump runs at highest speed.
Speed control, decreasing speed with increasing PWM
signal.
Lowest speed
Hysteresis function: The pump starts in intervals to
avoid clocking.
The pump stops.
49
GB