MICRO-EPSILON optoNCDT ILR 1183, Руководство по эксплуатации

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Page 23
Installation
optoNCDT ILR 1183
GND
U
v
violet
red
white
pink
gray
brown
supply
contoller
SSI C+
SSI D+
SSI D-
SSI C-
Fig. 9 Wiring of SSI interface operation
5.6 Switching Outputs
Characteristics of the two outputs:
- Signal level HIGH = VCC - 2 V
- Signal level LOW < 2 V
- Max. load carrying capacity 0.5 A
- Short-circuit-proof
- switching threshold and hysteresis selectable
Parameter settings for switching outputs can be made via the Profibus. This function is only available with the
Profibus in active state. Each of the two switching outputs allows a given object or state to be monitored for
positive or negative excession of its limit values. This is achieved with the help of a user-definable distance
threshold value (AC). Which way the particular switching output will switch depends on the mathematical sign
of its hysteresis (AH).
Rule:
- Positive hysteresis
ƒ
With increasing distance, the output switches from LOW to HIGH, as soon as AC + AH/2 is exceeded,
ƒ
with decreasing distance, it switches from HIGH to LOW, as soon the distance value falls below
AC – AH/2.