AEG THYRO-A Operations Instructions download pdf (Page 16)

Input set points

The Power Controller Thyro-A is equipped with two input set points which are isola-

ted from the mains.

• Set point 1 analog (X2.4 – X2.3 ground)

• Set point 2 system interface

The analog input can be adapted to the various process controllers by means of

the set point and live zero set point switches. The following signal ranges can be

set:

0(4)-20mA (R

= ca. 250), 0-5V (R

= ca. 44k), 0-10V (R

= ca. 88k).

Within the stated input ranges these values with the control characteristic may be

adjusted to any common signal characteristic.

+5V supply voltage can be taken for a set point potentiometer from terminal X2.8

(5kR

Poti

 10k).

The effective set point is the total set point. It is made by adding the two set points. It

is either the analog set point or the bus set point. If the bus module is connected and

in operation, the bus set point is effective.

If the bus module or bus (e.g. Profibus-DP) is interrupted, the controller automatically

switches to the analog set point.

Fig. 2 Set point inputs and total set point

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 42 43

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AEG THYRO-A Operations Instructions Page 16