
Program features 75
The estimated temperature is retained over power down. Speed dependency is
set by parameters.
Note
: The motor thermal model can be used when only one motor is connected
to the drive.
Motor thermal protection model
The drive calculates the temperature of the motor on the basis of the following
assumptions:
1. When power is applied to the drive for the first time, the motor is assumed
to be at ambient temperature (defined by parameter
). After this, when power is applied to the drive, the motor is
assumed to be at the estimated temperature.
2. Motor temperature is calculated using the user-adjustable motor thermal
time and motor load curve. The load curve should be adjusted in case the
ambient temperature exceeds 30 °C.
Note:
The motor thermal model can be used when only one motor is connected
to the inverter.
Summary of Contents for ACS280
Page 1: ... ABB MACHINERY DRIVES ACS280 coldplate drives Firmware manual ...
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Page 16: ...16 Control panel ...
Page 20: ...20 Start up ID run and use ...
Page 24: ...24 Default control connection ...
Page 88: ...88 Program features ...
Page 298: ...298 Parameters ...