Wilo Stratos PARA-C Notice De Montage Et De Mise En Service page 48

en
PWM in type 1
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 ... 85
85 ... 93 (operation)
85 ... 88 (starting)
93 ... 100
PWM in type 2
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
48
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-Stratos PARA-C/-CZ • Ed.01/2023-04
85 88 93 100
max
95 100
PWM %
to n .
min
PWM %