ABB ACS880 ESP, Firmware Manual

Page: 265 / 494

Parameters 265
35.13 Temperature 1
warning limit Defines the warning limit for temperature monitoring
function 1. When measured temperature 1 exceeds this
limit, a warning (
A491 External temperature ) is generated.
The unit is selected by parameter 96.16 Unit selection .
Note: With a PTC sensor, the unit is ohms.
110 °C or
230 °F
-60…5000 °C or
ohm, or -76…9032 °F Warning limit for temperature monitoring function 1. 1 = 1 unit
35.14 Temperature 1 AI
source Specifies the analog input when the setting of 35.11
Temperature 1 source requires measurement through an
analog input.
Note:
If the input is located on an I/O extension module,
use the selection Other to point to the AI actual value in
group 14, 15 or 16, eg. 14.26 AI1 actual value .
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
101 ).
-
35.21 Temperature 2
source Selects the source from which measured temperature 2 is
read.
Usually this source is from a sensor connected to the
motor controlled by the drive, but it could be used to
measure and monitor a temperature from other parts of the
process as long as a suitable sensor is used as per the
selection list. Disabled
Disabled None. Temperature monitoring function 2 is disabled. 0
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
KTY84 analog I/O KTY84 sensor connected to the analog input selected by
parameter
35.24 Temperature 2 AI source and an analog
output. The input and output can be on the drive control
unit or on an extension module.
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 unit selection parameter of the input to volt.
• Set the source selection parameter of the analog output
to “ Force KTY84 excitation ”.
• Select the analog input in parameter 35.24 . In case the
input is located on an I/O extension module, use the
selection
Other to point at the actual input value
parameter (for example, 14.26 AI1 actual value ).
The analog output feeds a constant current through the
sensor. As the resistance of the sensor changes along with
its temperature, the voltage over the sensor changes. The
voltage is read by the analog input and converted into
degrees.
2
No. Name/Value Description Def/
FbEq16