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Idiomas disponibles
Idiomas disponibles
for water & fire
PWM input signal (P1 heating systems for Modulex Hybrid models)
At high PWM signal rates (duty cycles), a hysteresis prevents the circulation pump from starting and stopping if the
input signal fluctuates around the change point. At low PWM signal rates the speed of the circulation pump is high
for safety reasons. In the event of cable breakage in a system with a gas boiler, the circulation pump will continue to
run at maximum speed to transfer heat from the primary heat exchanger.
PWM input signal (%)
EN
10
5 10
20
30
PWM input signal %
0
0<PWM≤10
10<PWM≤84
84<PWM≤91
91<PWM≤95
95<PWM≤100
MODULEX UPM- Intelligent frequency conversion circulation pump
40
50
60
70
80
Switch the pump to non-PWM mode (internal control)
Variable speed: from max. to min.
90
100
Pump status
Maximum speed: max.
Minimum speed: min.
Hysteresis area: on/off
Standby mode: off
EN
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