User manual

15
741.011 | 12.18
EN
Characteristics of high-efficiency pumps
Display Pump type Characteristic curve
AA
High-efficiency pump with a PWM profile
having a rising characteristic curve (Fig. 6)
0% PWM: pump off
100% PWM: pump at maximum speed
Ab
High-efficiency pump with a PWM profile
having a falling characteristic curve (Fig. 6)
0% PWM: pump at maximum speed
100% PWM: pump off
C
Pressure-controlled high-efficiency pump –
(no control cable; switched on/off via the
supply voltage)
Tab. 2: Characteristics of high-efficiency pumps
PWM %
RPM
PWM %
RPM
Fig. 6: Characteristics of high-efficiency pumps with a PWM profile having a rising characteristic
curve (AA, left) and a falling characteristic curve (Ab, right)