Wilo Para MAXO Einbau- Und Betriebsanleitung Seite 71

Description and function
Constant speed
Recommended for systems with fixed system resistance requiring a constant volume
flow. The control keeps the set speed constant, irrespective of the pumped volume
flow.
PWM 1 mode (profile heating)
In PWM 1 mode, the pump speed is controlled depending on the PWM input signal.
Behaviour when a cable breaks:
If the signal cable is disconnected from the pump, e.g. due to a cable break, the pump
accelerates to maximum speed.
PWM 1 signal input (%)
< 5
5 ... 85
85 ... 93 (operation)
85 ... 88 (starting)
Installation and operating instructions Wilo-Para MAXO/-G/-R/-Z
H
n min
n/¹/min
max
min
0 5
Pump reaction
Pump runs at maximum speed.
The speed of the pump decreases linearly from n
Pump runs at minimum speed (operation).
Pump runs at minimum speed (starting).
n max
n s
Q
85 88 93
to n
max
en
100 PWM %
.
min
71