CARLO GAVAZZI EN61036 Instrukcje Operacyjne Pobierz pdf (Strona 15)

ENGLISH

(consumed power) the output current is 20mA.

Example 2: if the output signal is ±10VDC, the scaling parameters can

be set as follows:

"Min IN"= -100(kW), "Max IN"= 100(kW) therefore "Min O." must be

0.0(%) (0V) and "Max O." must be 100.0(%) (+10VCC), that is to say,

when the power is -100(kW), the output is -10V, when it is "0", the output

is 0V and when the power is 100kW the output voltage is +10VDC.

USEFUL INFORMATION

The instrument can retransmit the current/power/energy that has been

measured according to the direction of the current that flows in the

primary/secondary of the connected current transformer (where avail-

able), as illustrated in the following figures:

It is very important to respect the polarity of the measuring inputs,

otherwise the instrument will not work properly. A wrong connec-

tion of the current inputs will not allow any retransmission of

signals from the output 0 to 20mA, 0 to 10V, etc.

However, it is possible to measure and retransmit currents/powers

according to the direction of their flow using correctly the parameters

"Min O./ Max O." and Min IN/ Max IN".

For example, it is necessary to measure a power up to 100kW consid-

ering that this power can be consumed or generated by the system:

Example 1:

If the output signal is 0-20 mA, the scaling parameters can be set as

follows:

"Min IN" must have a value of 0(kW) and "Max IN" of 100(kW), therefore

"Min O." is 50.0(%) (10mA) and "Max O." is 100.0(%) (20mA).

When the power is –100kW (generated power), the output is 0mA, when

the power is "0" the output current is 10mA and when the power is 100kW

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CARLO GAVAZZI EN61036 Instrukcje Operacyjne Strona 15