Code Alarm CR3 Manuel de service télécharger pdf (Page 23)

MIQ/CR3; DIQ/CR3 Settings

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ba76032e01 01/2012

Characteristic curves Through the selection of the Start value and End value, the proportional

output can be operated with a positive or negative characteristic curve.

 Positive characteristic curve:

Select the End value to be greater than the Start value.

The turn-on duration or frequency increases with an increasing

measured value (see page 4-10).

 Negative characteristic curve:

Select the End value to be smaller than the Start value.

The turn-on duration or frequency decreases with an increasing

measured value (see page 4-11).

The maximum values for the pulse width or switching frequency are

assigned to the End value and the minimum values for turn-on duration

or frequency are assigned to the Start value.

Fig. 4-6 Positive characteristic curve

Fig. 4-7 Negative characteristic curve

Measured value

Switching frequency f or

Pulse v

width

End valueStart value

Max.

Min.

Measured value

Start valueEnd value

Max.

Min.

Switching frequency f or

Pulse v

width

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Code Alarm CR3 Manuel de service Page 23