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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 maxi-
mum speed.
n/¹/min
max
min
PWM 1 signal input (%)
< 5
5 to 85
85 to 93 (operation)
85 to 88 (starting)
93 to 100
PWM 2 mode (profile solar)
In PWM 2 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 stops.
n/¹/min
max
min
58
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).
Pump stops (standby).
0
7 12 15
Installation and operating instructions • Wilo-Para MAXO/-G/-R/-Z • Ed.04/2024-11
85 88
93
100
max
95 100
PWM %
to n
.
min
PWM %
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