GE General Electric Computer Accessories 2300 V User Manual
GEH-6385 Reference and Troubleshooting, 2300 V Drives
Chapter 3 Paramters/Functions
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3-49
Motor Temperature Estimation
The Motor Temperature Estimation function estimates the rotor and stator
temperatures.
temperatures.
Function inputs
The Motor Temperature Estimation uses the following information to calculate the
rotor and stator temperatures:
rotor and stator temperatures:
•
Estimated rotor and stator resistances
•
Thermal properties of the stator and rotor winding materials
•
Motor ambient temperature
The estimated rotor and stator temperatures are calculated using online parameter
estimation. The thermal properties of the winding materials and the motor ambient
temperature are internal drive constants.
estimation. The thermal properties of the winding materials and the motor ambient
temperature are internal drive constants.
Function outputs
The following table specifies the outputs of the Motor Temperature Estimation.
Variable
Description
Rotor temp
Estimated rotor temperature. Degrees C or Degrees F
Stator temp
Estimated stator temperature. Degrees C or Degrees F
Power Dip Protection
The Power Dip Protection function sustains DC link voltage when a low voltage
condition is detected.
condition is detected.
Function inputs
The following table specifies the input variables of the Power Dip Protection
function.
function.
Variable
Description
DC bus feedback
DC link voltage. DC volts
Function configuration
The following table specifies the configuration parameters for the Power Dip
Protection function.
Protection function.
Parameter
Description
Power dip control
Specifies one of three functional modes:
Disabled
Enabled with standard operation
Enabled with custom operation
Custom pwr dip time
Length of time that the function attempts to sustain the
DC link in custom mode. Seconds
DC link in custom mode. Seconds