Eaton easyE4 User Manual

2. Installation
2.4 Connection terminals
2.4.9 Connecting analog inputs with temperature measuring on expansion devices
Temperature inputs cannot be used as digital inputs.
The EASY-E4-DC-4PE1(P) analog input expansion features four (4) analog RTD inputs
that can be used to integrate Pt100, Pt1000, or Ni1000 temperature sensors.
The Pt100, Pt1000, or Ni1000 inputs are suitable for 2-wire and 3-wire connections. In
addition, unshielded or shielded cables with a length of up 30 m can be used for the
connection. Finally, averaging for temperature readings can be set up.
When connecting temperature sensors, make sure to use the right configuration
depending on whether you are using a 2-wire or 3-wire connection. If the tem-
perature sensors are connected using a 2-wire connection, the corresponding input
terminals must be connected to each other, i.e., input terminals 2 and 3 for T1, input
terminals 5 and 6 for T2, input terminals 8 and 9 for T3, and input terminals 11 and 12
for T4.
When inputs on an EASY-E4-DC-4PE1(P) are not used, all three input ter-
minals must be connected to each other.

24 V DCDC:
0 V
0 V+24 V
EASY-E4-DC-4PE1(P)
F1 >
1 A
Pt 100
Pt 1000
Ni 1000
Pt 100
Pt 1000
Ni 1000
T1: 1 2 3
T2: 4 5 6
T3: 7 8 9
T4: 10 11 12
T1: 1 2 3
T2: 4 5 6
T3: 7 8 9
T4: 10 11 12
2
3
Fig. 30: Connecting analog inputs EASY-E4-DC-4PE1(P)
DANGER
Analog signals are more sensitive to interference than digital signals,
so the signal cables should be carefully routed and connected.
An incorrect connection can lead to unwanted switching states.
Unshielded signal cables must be routed separately from AC cables.
In order to prevent fluctuating analog values, you should take the measures specified
for Engineering → Section "Analog signals", page 50
easySoft 8 is required in order to be able to configure the connected RTD sensors.
80
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Eaton easyE4 Specifications

General

Brand	Eaton
Model	easyE4
Category	Relays
Language	English