figure 7. 21: Analogue set temperature as a function of the applied current signal of the
external requirement
At the input of the external requirement module a current signal between 4 and 20 mA should be given,
because a current signal is compared to a voltage signal
voltage losses at the cables.With an internal resistor (500 Ohm) the current signal is converted into a voltage
signal.
Eingangssignal
= Stromsignal
T-CONTROL - External requirement
Analogue set temperature as a function of the applied current signal of the
external requirement
At the input of the external requirement module a current signal between 4 and 20 mA should be given,
because a current signal is compared to a voltage signal insensitive to electromagnetic disturbances and
voltage losses at the cables.With an internal resistor (500 Ohm) the current signal is converted into a voltage
Externes
Anforderungsmodul
500 Ω
Eingangssignal
= Stromsignal
External requirement module
7
57
Analogue set temperature as a function of the applied current signal of the
At the input of the external requirement module a current signal between 4 and 20 mA should be given,
insensitive to electromagnetic disturbances and
voltage losses at the cables.With an internal resistor (500 Ohm) the current signal is converted into a voltage
Содержание commotherm 30 SW
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