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2 Installation
2.5 Connecting the inputs
42
Control Relay easy800
11/11 MN04902001Z-EN
www.eaton.com
Temperature sensor
Figure 41:Temperature sensor connection
20 mA sensor
A 4 to 20 mA (0 to 20 mA) sensor can be connected on the voltage input
using an external 500
Ω
resistor (twice 1 k
Ω
in parallel).
Figure 42:20 mA sensor
①
Analog sensor
The following values apply:
•
4 mA = 2.0 V
•
10 mA = 5.0 V
•
20 mA = 10.0 V
(according to U = R
.
I = 500
Ω
.
10 mA = 5.0 V)
Modules with ..TAP13.. in their designation are provided with an additional
analog output.
Connecting analog inputs of the EASY4..-DC-ME expansion units
These DC expansion units allow you to process analog values of voltage,
current and temperature. The EASY4..-DC-ME DC expansion units convert
analog input and output values with a 10-bit resolution (0 - 1023).
When a Pt100 sensor is connected, the DC expansion units operate in the
range between -50 °C and 200 °C.
+24 V
H
0 V
Out
0...10 V
–35...55 °C
+24 V
H
0 V
Out
0...10 V
–35...55 °C
L01
⫹
L01
⫺
I7
24 V 0 V
F1
I6
0 V
I2
I1
I4
I3
I5
I8
I10
I9
I12
I11
0 V
–
L01
⫹
F1
L01
⫺
a
500
O
4…20 mA
I7
24 V
0 V
0 V
I2
I1
I4
I3
I6
I5
...