ABB ACS880 Firmware Manual page 217

No. Name/Value
PT100 x1 StdIO
PT100 x2 StdIO
PT100 x3 StdIO
PTC DI6
PTC encoder
module 1
PTC encoder
module 2
Direct AI
temperature
35.22 Temperature 2 fault
limit
-10 ... 1000 °C or
14...1832 °F
35.23 Temperature 2
warning limit
-10 ... 1000 °C or
14...1832 °F
35.24 Temperature 2 AI
source
Not selected
AI1 actual value
AI2 actual value
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 PT100 x1 StdIO, but with two sensors connected
in series. Using multiple sensors improves measurement
accuracy significantly.
As selection PT100 x1 StdIO, but with three sensors
connected in series. Using multiple sensors improves
measurement accuracy significantly.
PTC sensor connected to digital input DI6 (see the
connection diagram on page 62).
PTC sensor connected to encoder interface 1.
See also parameters 91.21 Temperature meas sel1
91.22 Temperature filtering time
PTC sensor connected to encoder interface 2.
See also parameters 91.24 Temperature meas sel2
91.25 Temperature filtering time
The temperature is taken from the source selected by
parameter 35.24 Temperature 2 AI
source is assumed to be degrees Celsius.
Defines the fault limit for temperature monitoring function 2.
See parameter 35.20 Temperature 2
selected by parameter 96.16 Unit
Note: With a PTC sensor, the unit is ohms.
Fault limit for temperature monitoring function 2.
Defines the warning limit for temperature monitoring function
2. See parameter 35.20 Temperature 2
selected by parameter 96.16 Unit
Note: With a PTC sensor, the unit is ohms.
Warning limit for temperature monitoring function 2.
Selects the input for parameter
selections KTY84 StdIO / Extension I/O
StdIO, PT100 x2 StdIO,
temperature.
None.
Analog input AI1 on the control unit.
Analog input AI2 on the control unit.
and an analog
to V (volt).
AO, set the source
"Force PT100
1.
2.
source. The value of the
action. The unit is
selection.
action. The unit is
selection.
35.21 Temperature 2
module,
PT100 x3 StdIO and Direct AI
Parameters 217
Def/FbEq16
5
6
7
8
9
and
10
and
11
130 °C or
266 °F
1 = 1 unit
110 °C or
230 °F
1 = 1 unit
source, Not selected
PT100 x1
0
1
2