ABB ACQ580 Firmware Manual page 206

202 Parameters
No. Name/Value
1 × Pt100 analog
I/O
2 × Pt100 analog
I/O
3 × Pt100 analog
I/O
PTC DI6
Reserved
Direct temperature
Reserved
PTC extension
module
Reserved
Therm(0)
Therm(1)
Description
Pt100 sensor connected to a standard analog input selected
by parameter 35.24 Temperature 2 AI source
output.
The following settings are required:
• Set the hardware jumper or switch related to the analog
input to U (voltage). Any change must be validated by a
control unit reboot.
• Set the appropriate analog input unit selection parameter
in group 12 Standard AI
• In parameter group 13 Standard
selection parameter of the analog output to
excitation.
The analog output feeds a constant current through the
sensor. As the resistance of the sensor increases along with
its temperature, the voltage over the sensor increases. The
voltage is read by the analog input and converted into
degrees.
As selection 1 × Pt100 analog
connected in series. Using multiple sensors improves
measurement accuracy significantly.
As selection 1 × Pt100 analog
connected in series. Using multiple sensors improves
measurement accuracy significantly.
PTC sensor is connected to DI6.
Note: With a PTC sensor, the value shown is not a valid
measurement. Either 0 ohm (normal temperature) or the
value of parameter 35.22 Temperature 2 fault limit
temperature) is shown.
The temperature is taken from the source selected by
parameter 35.24 Temperature 2 AI
source is assumed to be degrees Celsius.
PTC is connected to the CMOD-02 multifunction extension
module, which is installed in drive slot 2. See chapter
Optional I/O extension modules, section CMOD-02
multifunction extension module (external 24 V AC/DC and
isolated PTC interface) in the Hardware manual of the drive).
PTC sensor or a normally closed thermistor connected relay
to digital input DI6. The motor is overheated when the digital
input is 0.
Normally open thermistor relay connected to digital input DI6.
The motor is overheated when the digital input is 1.
and an analog
to V (volt).
AO, set the source
Temp sensor 2
I/O, but with two sensors
I/O, but with three sensors
(excessive
source. The value of the
Def/FbEq16
5
6
7
8
19...10
11
17...18
19
20
21
22