2 function at input value with sign reversal, 2 function at input value with sign reversal 3, 17 function library – Lenze 8400 HighLine User Manual

Page 1463

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Lenze · 8400 HighLine · Referenzhandbuch · DMS 10.0 EN · 06/2014 · TD05/TD14

1463

17

Function library

17.1

Function blocks

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

17.1.137.2 Function at input value with sign reversal

Selection:

C01150

= "2: Loading with level + reset"

[17-64] Switching performance if the input signal changes signs

• If "2: Loading with level + reset" is selected in

C01150

, the bLoad input is status-controlled: In

case of a TRUE signal, the integrator is loaded with the value at dnSet_p and the bStatus output

is set to FALSE.

• A positive signal at nIn_v is incremented (the counter content is increased with every function

call).

• A negative signal at nIn_v is decremented (the counter content is reduced with every function

call).

dnOut_p outputs the counter content of the bipolar integrator.

• If the positive counter content is higher than the comparison value set in

C01151/x

, the

comparison value will be subtracted from the counter content, and bStatus will be set to

TRUE for one task cycle.

• If the negative counter content is lower than the comparison value set in

C01151/x

, the

comparison value will be added to the counter content, and bStatus will be set to TRUE for

one task cycle.

Sign reversal of the value at nIn_v

C01151/x

: Comparison value (is valid for both the positive and the negative value range)

dnOut_p

t

0

TRUE

FALSE

bStatus

t

0

Œ

Œ

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