ABB ACS850 series, Firmware Manual

Page: 146 / 260

146 Parameters
31.02 Mot temp1 src Selects the means of temperature measurement for motor
thermal protection 1. When overtemperature is detected the
drive reacts as defined by parameter
31.01 Mot temp1 prot .
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.
Estimated The temperature is supervised based on the motor thermal
protection model, which uses the motor thermal time constant
(parameter
31.14 Mot therm time ) and the motor load curve
(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.
0
KTY JCU The temperature is supervised using a KTY84 sensor
connected to drive thermistor input TH. 1
KTY 1st FEN 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.
2
KTY 2nd FEN 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.
3
PTC JCU The temperature is supervised using 1…3 PTC sensors
connected to drive thermistor input TH. 4
PTC 1st FEN 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. 5
PTC 2nd FEN 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. 6
Pt100 JCU x1 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. 7
Pt100 JCU x2 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. 8
Pt100 JCU x3 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. 9
No. Name/Value Description FbEq