ABB ACQ580, Firmware Manual

Page: 206 / 422

202 Parameters
1 × Pt100 analog
I/O Pt100 sensor connected to a standard analog input selected
by parameter
35.24 Temperature 2 AI source and an analog
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 to V (volt).
• In parameter group 13 Standard AO , set the source
selection parameter of the analog output to Temp sensor 2
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.
5
2 × Pt100 analog
I/O As selection 1 × Pt100 analog I/O , but with two sensors
connected in series. Using multiple sensors improves
measurement accuracy significantly.
6
3 × Pt100 analog
I/O As selection 1 × Pt100 analog I/O , but with three sensors
connected in series. Using multiple sensors improves
measurement accuracy significantly.
7
PTC DI6 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 (excessive
temperature) is shown.
8
Reserved 19…10
Direct temperature The temperature is taken from the source selected by
parameter
35.24 Temperature 2 AI source . The value of the
source is assumed to be degrees Celsius.
11
Reserved 17…18
PTC extension
module 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).
19
Reserved 20
Therm(0) PTC sensor or a normally closed thermistor connected relay
to digital input DI6. The motor is overheated when the digital
input is 0. 21
Therm(1) Normally open thermistor relay connected to digital input DI6.
The motor is overheated when the digital input is 1. 22
No. Name/Value Description Def/FbEq16