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Operating Instructions USi
281114 v1.3
Polymer Electric
Operation
Operation
The ultrasonic industrial sensor USi uses the connected sensors (ultrasonic trans-
ducers) to both transmit and receive sound in the medium air. With a complex
measurement procedure, consisting of echo transit time measurement and echo
amplitude measurement, it is possible to reliably
detect
objects and also success-
fully
measure
distances accurately.
Outputs
Type
Digital
Analog
Total
USi-PP
PNP
–
4
×
PNP
USi-IP
PNP
4 to 20 mA
3
×
PNP
1
×
I [A]
ISi-UP
PNP
0 to 10 V
3
×
PNP
1
×
U [V]
Detect
Measure
Detection – the USi as a Switch (digital)
If switch point SP1 and switch point SP2 are de
fi
ned, the USi begins detection in
the predetermined operating mode. The 3 possible operating modes are:
Operating Mode 1
Range
Operating mode 1 Range is the preset standard operating mode.
SP1: 1 cm
SP2: 200 cm
Since switch point
SP1 complies with the minimum switching distance of only 1
cm,
detection is effectively from the active surface to the switch point
SP2. If an ob-
ject penetrates the detection
fi
eld, the outputs (preset as normally open contacts)
“OUT
X.1” and “OUT
X.2” are closed.
Operating Mode 2
Ranges
If switch point
SP1 selection is larger than 1 cm, the USi-PP automatically changes
to operating mode 2
ranges.
SP1: > 1 cm
SP2: > (SP1 + 1 cm)
The detection
fi
eld is divided into 2 zones. The detection
fi
eld (red) that is sensor-
proximal extends effectively from the active surface to the switch point
SP1. The
sensor-distant detection
fi
eld (yellow) extends from the switch point
SP1 to the
switch point SP2. Each zone is assigned a separate output (preset as normally
open contact). If an object penetrates the detection
fi
eld (yellow), which is sensor-
distant, output “OUT
X.2” will be closed. If an object penetrates the detection
fi
eld
(red), which is sensor-proximal, output “OUT
X.2” will remain closed and output
“OUT X.1” will also be closed.