ABB AC500 V3 Hardware Manual page 465

Pt100
Pt1000
Ni1000
Cu50
For a description of the function of the LEDs, please refer to Diagnosis and displays / displays
Ä Chapter 1.6.2.2.3.7 "Diagnosis" on page 475.
The module linearizes the resistance thermometer characteristics.
In order to avoid error messages from unused analog input channels, it is useful to configure
them as "unused".
Connection of resistance thermometers in 3-wire configuration
When resistance thermometers (Pt100, Pt1000, Ni1000, Cu50) are used, a constant current
must flow through them to build the necessary voltage drop for the evaluation. For this, the
module AI531 provides a constant current source which is multiplexed over the 4 analog chan-
nels.
Fig. 44: Connection example
The following measuring ranges can be configured
on page 472:
Pt100
Pt1000
Ni1000
Cu50
For a description of the function of the LEDs, please refer to Diagnosis and displays / displays
Ä Chapter 1.6.2.2.3.7 "Diagnosis" on page 475.
The module linearizes the resistance thermometer characteristics. In order to keep measuring
errors as small as possible, it is necessary by all means to have all the involved conductors in
the same cable. All the conductors must have the same cross section.
2022/01/31
-50 °C...+70 °C / +400 °C;
-200 °C...+850 °C
-50 °C...+400 °C
-50 °C...+150 °C
-50 °C...+200 °C (1.426); -200
°C...+200 °C (1.428)
Ä Chapter 1.6.2.2.3.6 "Parameterization"
-50 °C...+70 °C / +400 °C;
-200 °C ... +850 °C
-50 °C...+400 °C
-50 °C...+150 °C
-50 °C...+200 °C (1.426); -200
°C...+200 °C (1.428)
3ADR010278, 3, en_US
Device specifications
I/O modules > Analog I/O modules
1 channel used
1 channel used
1 channel used
1 channel used
1 channel used
1 channel used
1 channel used
1 channel used
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