Program features 101
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.
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
35 Motor thermal protection
(page
245
).
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
3381
Output
phase loss
whenever the drive detects a phase loss. The motor phase loss detection
1000
2000
3000
Ohm
T
(
o
C)
-100
0
0
100
200
300
Scaling
KTY84
KTY83
°C
ohm
ohm
90
936
1569
110
1063
1774
130
1197 1993
150
1340
2225
KTY83
KTY84
ACS380 FW.book Page 101 Friday, May 4, 2018 4:18 PM
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