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2 resistive temperature detector inputs, Ewon4002™ installation guide – Siemens eWON4002 User Manual

Page 22

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eWON4002™

Installation Guide

page 19 of 35

ver 2.04

Note: pay attention to the fact that switch 1 configures AI4, switch 2 configures AI3, ....

5.7.2 Resistive Temperature Detector Inputs

These inputs are differential PT100 inputs that can be used with any classical 100 Ohm PT100 sensing element.

Specification

Value

Input range

0 to 10 VDC

Number of inputs

4

Common points

1

Resolution

12 bits (5 mV)

Precision

0.50%

Voltage input impedence

300 kOhm

Overvoltage protection

12VDC (automatic fuse)

Table 16: Standard Analog Inputs - Voltage input specification

Specification

Value

Input range

0 to 20 mA

Number of inputs

4

Common points

1

Resolution

12 bits (10 µA)

Precision

0.50%

Current input impedence

220 Ohm (1%)

Max current

25 mA

Table 17: Standard Analog Inputs - Current input specification

Specification

Value

Type

PT100 - 2 wires

Method

Current of 200µA, voltage measure

Range

0 to 100°C

Resolution

12 bits

Table 18: Analog Inputs - specification