ABB ACS860, Руководство по прошивке

Страница: 221 / 438

Parameters 221
35
35 Motor thermal
protection Motor thermal protection settings such as temperature
measurement configuration, load curve definition and motor
fan control configuration.
See also section
Motor thermal protection (page 65 ).
35.01 Motor estimated
temperature Displays the motor temperature as estimated by the internal
motor thermal protection model (see parameters
35.50 … 35.55 ).
This parameter is read-only.
-
-60 … 1000 °C Estimated motor temperature. 1 = 1°
35.02 Measured
temperature 1 Displays the temperature received through the source defined
by parameter
35.11 Temperature 1 source .
Note: With a PTC sensor, the unit is ohms.
This parameter is read-only.
-
-60 … 1000 °C,
0…5000 ohm Measured temperature 1. 1 = 1 unit
35.03 Measured
temperature 2 Displays the temperature received through the source defined
by parameter
35.21 Temperature 2 source .
Note: With a PTC sensor, the unit is ohms.
This parameter is read-only.
-
-60 … 1000 °C,
0…5000 ohm Measured temperature 2. 1 = 1 unit
35.11 Temperature 1
source Selects the source from which measured temperature 1 is
read.
For wiring examples, see the hardware manual of the drive.
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 1 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
35.14 Temperature 1 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 35.14 .
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