Eaton easyControl EC4-200, User Manual

Page: 26 / 113

Installation
10/10 MN05003003Z-EN
22
Setpoint potentiometers connection
Use a potentiometer with the resistance
F
1
kO
, e.g. 1
kO
,
0.25 W.
Temperature sensor connection
Connecting the 20 mA sensor
A 4…20 mA (0…20 mA) sensor can be connected easily with an
external 500
O
resistor.
The following values apply:
• 4 mA = 1.9 V
• 10 mA = 4.8 V
• 20 mA = 9.5 V
(according to
U
=
R
x
I
= 478
O x
10 mA ~ 4.8 V)
h
Ensure that the reference potential is galvanically
connected. Connect the 0 V of the power supply unit for
the setpoint potentiometer and various sensors shown in
the examples with the 0 V of the power supply.
Figure 17: Setpoint potentiometer
Figure 18: Setpoint potentiometer with upstream resistor
Figure 19: Brightness sensor
L01
⫹
L01
⫺
0 V
+12 V
I7 24 V 0 V 0 V
F1
I2 I1
I4 I3 I6 I5
...
H
h
L01
⫺
L01
⫹
1.3 k
O
/0.25 W
1 k O /0.25 W
0 V 0 V I7 24 V
F1
...
I6 I2 I1
I4 I3 I5
0 V
0...10 V
12 V
L01
⫹
L01
⫺
0 V +12 V
I7 24 V 0 V 0 V
...
F1
I2 I1 I4 I3
I6 I5
h
H
Figure 20: Temperature sensor
Figure 21: 20 mA sensor
a
Analog sensor
+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
...