Sentek LMC-J-0040-1 Manuel d'utilisateur télécharger pdf (Page 25)

IMJ00503 V3E.DOC Page 25 of 40 19.02.2009

Fig. 6: Digital switching output behaviour for positive and negative hysteresis.

LOW corresponds to a voltage level < 2 V.

HIGH corresponds to a voltage level of VCC 2 V.

Each alarm output is short circuit proof and rated for a maximum current load of 0.5 A.

Parameter settings for alarm outputs can be made with the Profibus master, using the Encoder

profile with Class 1 functionality.

The following parameters may be configured (refer to GSD File):

ExtUserPrmData = 29

“Sw

itching point output 1 (31 16)” for AC alarm output 1

ExtUserPrmData = 30

“Switching point output 1 (15

0)” for AC alarm output 1

ExtUserPrmData = 31

“Switching point output 2 (31

16)” for AC alarm output 2

ExtUserPrmData = 32

“Swi

tching point output 2 (15 0)” for AC alarm output 2

ExtUserPrmData = 33

“Hysteresis output 1 (31

16)” for AH alarm hysteresis 1

ExtUserPrmData = 34

“Hysteresis output 1 (15

0)” for AH alarm hysteresis 1

ExtUserPrmData = 35

“Hysteresis output 2 (31

16)” for AH alarm hysteresis 2

ExtUserPrmData = 36

“Hysteresis output 2 (15

0)” for AH alarm hysteresis 2

Further switching functionalities, for example, monitoring for specified operating ranges may be

accomplished by combining the two alarm outputs.

Distance

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Sentek LMC-J-0040-1 Manuel d'utilisateur Page 25