ABB AC500 V3 Hardware Manual page 466

Hide thumbs Also See for AC500 V3:

Table of Contents

Device specifications

I/O modules > Analog I/O modules

In order to avoid error messages from unused analog input channels, it is useful to configure

them as "unused".

Connection of resistance thermometers in 4-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-

Fig. 45: Connection example

The following measuring ranges can be configured

on page 472:

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.

In order to avoid error messages from unused analog input channels, it is useful to configure

them as "unused".

Connection of resistors in 2-wire configuration

For evaluating resistors, a constant current must flow through them to build the necessary

voltage drop. For this, the module AI531 provides a constant current source which is multi-

plexed over the 4 analog channels.

-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

Ä Chapter 1.6.2.2.3.6 "Parameterization"

1 channel used

Show Quick Links

Table of Contents

Ac500-eco v3 Ac500-xc v3