Programmable Protection Functions - ABB ACS380 Firmware Manual

ACS380 FW.book Page 101 Friday, May 4, 2018 4:18 PM
over the sensor. The temperature measurement function reads the voltage through
the analog input and converts it into degrees Celsius.
The figure and table below show typical KTY83 sensor resistance values as a
function of the motor operating temperature.
KTY84
°C
90
110
130
150
It is possible to adjust the motor temperature supervision limits and select how the
drive reacts when overtemperature is detected.
For the wiring of the sensor, see chapter Electrical installation, AI1 and AI2 as Pt100,
Pt1000, Ni1000, KTY83 and KTY84 sensor inputs (X1) in the Hardware manual of the
drive.
Settings
Parameter group


Programmable protection functions

External events (parameters 31.01...31.10)
Five different event signals from the process can be connected to selectable inputs to
generate trips and warnings for the driven equipment. When the signal is lost, an
external event (fault, warning, or a mere log entry) is generated.
Motor phase loss detection (parameter 31.19)
The parameter selects how the drive reacts whenever a motor phase loss is detected.
The motor phase loss detection is enabled by default and displays fault
phase loss whenever the drive detects a phase loss. The motor phase loss detection
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Ohm
Scaling
3000
KTY83
ohm ohm
936 1569
1063 1774
2000
1197 1993
1340 2225
1000
0
-100
35 Motor thermal protection
Program features
KTY84
KTY83
0 100 200 300
(page 245).
3381 Output
101
o
T ( C)