ABB ACS850 Firmware Manual page 146

146 Parameters
No. Name/Value
31.02 Mot temp1 src
Estimated
KTY JCU
KTY 1st FEN
KTY 2nd FEN
PTC JCU
PTC 1st FEN
PTC 2nd FEN
Pt100 JCU x1
Pt100 JCU x2
Pt100 JCU x3
Description
Selects the means of temperature measurement for motor
thermal protection 1. When overtemperature is detected the
drive reacts as defined by parameter
Note: If one FEN-xx module is used, parameter setting must
be either KTY 1st FEN or PTC 1st FEN. The FEN-xx module
can be in either Slot 1 or Slot 2.
The temperature is supervised based on the motor thermal
protection model, which uses the motor thermal time constant
(parameter 31.14 Mot therm
(parameters 31.10...31.12). User tuning is typically needed
only if the ambient temperature differs from the normal
operating temperature specified for the motor.
The motor temperature increases if it operates in the region
above the motor load curve. The motor temperature
decreases if it operates in the region below the motor load
curve (if the motor is overheated).
WARNING! The model does not protect the motor if
it does not cool properly due to dust and dirt.
The temperature is supervised using a KTY84 sensor
connected to drive thermistor input TH.
The temperature is supervised using a KTY84 sensor
connected to encoder interface module FEN-xx installed in
drive Slot 1/2. If two encoder interface modules are used,
encoder module connected to Slot 1 is used for the
temperature supervision.
Note: This selection does not apply to FEN-01.
The temperature is supervised using a KTY84 sensor
connected to encoder interface module FEN-xx installed in
drive Slot 1/2. If two encoder interface modules are used,
encoder module connected to Slot 2 is used for the
temperature supervision.
Note: This selection does not apply to FEN-01.
The temperature is supervised using 1...3 PTC sensors
connected to drive thermistor input TH.
The temperature is supervised using a PTC sensor
connected to encoder interface module FEN-xx installed in
drive Slot 1/2. If two encoder interface modules are used,
encoder module connected to Slot 1 is used for the
temperature supervision.
The temperature is supervised using a PTC sensor
connected to encoder interface module FEN-xx installed in
drive Slot 1/2. If two encoder interface modules are used,
encoder module connected to Slot 2 is used for the
temperature supervision.
The temperature is supervised using a Pt100 sensor
connected to analog input AI1 and analog output AO1 on the
JCU Control Unit of the drive.
The temperature is supervised using two Pt100 sensors
connected to analog input AI1 and analog output AO1 on the
JCU Control Unit of the drive.
The temperature is supervised using three Pt100 sensors
connected to analog input AI1 and analog output AI1 on the
JCU Control Unit of the drive.
31.01 Mot temp1
time) and the motor load curve
FbEq
prot.
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