Distech Controls IO-R-34 Handmatig - Pagina 11
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Wiring Details
Figure 7
Thermistor wiring.
Cut and tape shield wire back
at Thermistor.
10K Thermistor
Shielded, Twisted Cable,
61m (200 ft) maximum
Resistive 0-100K ohms
The inputs can read a resistive signal within a range from 0 to 100,000 ohms. Wiring is the same as shown for a
Thermistor temperature sensor
Resistive signals require a ResistiveInputPoint.
UI inputs provide optimum resistive-to-temperature resolution in the 10K ohm range. For a sensor with
Caution
a range far from 10K ohms (such as a 100-ohm or 1000-ohm sensor), resolution is so poor as to be
unusable
! To successfully use such a sensor, install a transmitter that produces a Vdc or mA signal,
and then wire the transmitter to the UI according to the
0
10 Vdc
–
The inputs support self-powered 0–10 Vdc sensors. Input impedance is greater than 5K ohms.
0–10 volt accuracy is ±2% of span, without user calibration.
0–10 Vdc sensors require a VoltageInputPoint.
–
Figure 8
0
10 Vdc wiring.
Range: 0—10 Vdc
Input Impedance > 5K ohms
0—10Vdc Sensor
(self-powered sensor)
+
0—10
Vdc
Shielded, Twisted Cable,
–
61m (200 ft) maximum
4
20 mA
–
The inputs support self-powered 4–20 mA sensors. Input accuracy is ±2% of span, without user calibration.
shows the wiring diagram, which requires a 499 ohm resistor wired across the input terminals.
4–20 mA sensors also require the VoltageInputPoint.
Remote IO-R-34 Module Mounting and Wiring Guide
U1 0V U2 U3 0V U4
Shield
(Figure
7).
U1 0V U2 U3 0V U4
Cut and tape shield
wire back at sensor.
Shield
Stud in enclosure
0–10 Vdc
or
Figure 8
shows the wiring diagram.
Use point: VoltageInputPoint
Conversion: Linear
Stud in enclosure
August 2, 2017
4–20 mA
instructions.
Inputs
Figure 9
11