
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.
Содержание ACS280
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