ABB ACQ80-04 - Page 123

Parameters 123
Estimated
temperature
Estimated motor temperature (see parameter 35.01 Motor
estimated temperature).
The temperature is estimated from an internal drive
calculation. It is important to set up the ambient temperature
of the motor in 35.50 Motor ambient temperature.
1
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
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
35.22 Temperature 2 fault
limit
Defines the fault limit for temperature supervision function 2.
When measured temperature 1 exceeds the limit, the drive
trips on fault 4982 External temperature 2.
The unit is selected by parameter 96.16 Unit selection.
130 °C or
266 °F
-60…5000 °C or
-76…9032 °F
Fault limit for temperature monitoring function 2. 1 = 1 unit
35.23 Temperature 2
warning limit
Defines the warning limit for temperature supervision
function 2. When measured temperature 1 exceeds the limit,
warning A492 External temperature 2 is generated.
The unit is selected by parameter 96.16
Unit selection.
110 °C or
230 °F
-60…5000 °C or
-76…9032 °F
Warning limit for temperature monitoring function 2. 1 = 1 unit
35.24 Temperature 2 AI
source
Specifies the analog input when the setting of 35.11
Temperature 1 source requires measurement through an
analog input.
Not selected
Not selected None. 0
AI1 actual value Analog input AI1 on the control unit. 1
AI2 actual value Analog input AI2 on the control unit. 2
Other Source selection (see Terms and abbreviations on page 64). -
No. Name/Value Description Def/FbEq16
ACQ80 FW.book Page 123 Thursday, February 14, 2019 11:33 AM