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PWM 2 signal input (%)
< 7
7 to 15 (operation)
12 to 15 (starting)
15 to 95
> 95
PWM signal output (iPWM)
In iPWM mode, the pump produces a PWM output signal. In normal operation, either the volume flow or the
power is calculated. In case of a failure, a specific code is transmitted.
PWM signal output (%)
2
5 to 75
80
85
90
95
The maximum values are defined in the table below:
Size of the pump
Para MAXO 08
Para MAXO 10
Para MAXO 11
Para MAXO 15
Table 4: Maximum of the scale
NOTICE
The maximum power consumption and the maximum flow rate of the pump are lower than
the maximum value indicated here.
Control input "Analogue In 0 to 10 V" with cable break function
The pump is controlled according to an analogue signal in the range of 0 to 10 V. Behaviour when a cable
breaks: If the signal cable is disconnected from the pump, e.g. due to a cable break, the pump reduces to
minimum speed.
Installation and operating instructions • Wilo-Para MAXO/-G/-R/-Z • Ed.04/2024-11
Pump reaction
Pump stops (standby).
Pump runs at minimum speed.
Pump runs at minimum speed.
The speed of the pump increases linearly from n
Pump runs at maximum speed.
Volume flow calculation
Pump stopped by user instruction, ready to start.
The volume flow of the pump in-
creases linearly from 0 ... Q
The pump runs with a warning "Overload" or "Undervoltage".
The pump stops with an error "Overload", "Excessive temperature", "Over-
voltage", "Undervoltage" or "Turbine operation".
The pump stops with an error "Overcurrent" or "Excessive speed".
The pump stops with a final error "Blocked rotor", "Motor defective" or
"Winding defective".
Volume flow calculation
Q
= 14 m³/h
max
Q
= 14 m³/h
max
Q
= 7 m³/h
max
Q
= 7 m³/h
max
min
Power calculation
The power consumption of the pump
(m³/h).
increases linearly from 5 ... P1
max
Power calculation
P1
= 145 W
max
P1
= 215 W
max
P1
= 145 W
max
P1
= 215 W
max
en
to n
.
max
(W).
max
59
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