wtw TresCon UNO A111, Руководство по эксплуатации

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Operation TresCon UNO
5 - 42 ba43134e08 05/2017
5.3.5 Relays as frequency controllers
Function With the Cmin , Cmax , fmin , and fmax settings, the characteristics of the
frequency controller are determined. The fundamentals of the function
are described in the introductory chapter (see section 5.3.2).
Settings
Characteristic curve If a value is entered for End value that is greater than the Start value ,
the controller has a positive characteristic curve.
To obtain a negative characteristic curve, a value must be entered for
End value that is lower than that for Start value .
Setting Selection/Values Explanation
Cmin within the measu-
ring range (sensor-
dependent) Measured value
with minimum or
maximum fre-
quency.
Note:
Minimum distance:
10% of the measu-
ring range
Cmax
fmin 0 ... 120 1/min Minimum or maxi-
mum frequency.
Note:
Minimum distance:
10 1/min
fmax
Action Normally closed
Normally open Relay action (see
section 5.3.1)
Frequency with stop 0 ... 120 1/min In the Stop mode,
the relay switches
with the defined fre-
quency.
Also in the case of
AutoCal , AutoClean
etc.
Hold The switching fre-
quency remains
unchanged.