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Page 3.4 - 6 COMBIVERT R6-N © KEB, 2015-07

Digital in- and outputs

3.4.5 Digitalnoiselter(di.03)

Thedigitallterreducesthesusceptibilitytointerferencesonthedigitalinputs.Onlyhardwareinputscanbe

ltered.Eachinputhasaseparateltercounter,whichcountsupwardatactiveinputanddownwardatinactive

input.Theoutputofthelterissetwhentheltertimeisreachedandisresetatzero.

Parameter Setting range Resolution

di. 03 0...127 ms 1 ms

Priorityoftheltertimes:Thehighertimeisused.

3.4.6 Inverting the inputs (di.04)

If a signal is 1- or 0-active (inverted) can be adjusted with parameter di.04. The parameter is bit-coded, i.e.

the appropriate value of the input must be entered. If several inputs shall be inverted, the sum is to be formed.

(Exception:invertingofthecontrolreleaseremainswithoutfunction.)

3.4.7 Input trigger (di.05)

As standard the COMBIVERT is controlled with static signals i.e., an input is set as long as a signal is active.

But in practice it may happen that a signal is only available temporary, but the input shall remain set. For this

case this or several inputs can be set to input trigger. A rising slope with a pulse duration, which is longer than

theresponsetimeofthedigitallterissufcientforswitchingon.Switchingoffisdonewiththenextrisingslope.

Control release (ST) can be set to edge-triggering, but remains without effect on the function, since it is a pure

static signal.

Picture3.4.7ExampleofasignalowdiagramforinputI1(di.05=16)

Input signal after

ltering

Edgetriggeredip-op

3.4.8 Input strobe dependence (di.06, di.07, di.08)

A Strobe signal is used mainly for triggering the input signals. For example, two inputs are used for parameter

set selection. But the signals for the control do not arrive exactly even, so for a short time it would be switched

into an unintended set. For active strobe (scanning signal) the actual input signals of the strobe-dependent

inputs are stored and have been retained to the next scanning.

Which inputs are switched by strobe?

Any input can be selected as strobe-dependent input with parameter di.08. With the control release di.08 has

no function since this is a static input.

KEB COMBIVERT R6-N User Manual

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