Parker AC30V Series, Manual

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Parameter Reference
D-43
AC30V series Variable Speed Drive
Motor Load
Parameters::Motor Control::Motor Load
Motor Protection, function of the motor type.
The
Motor Load parameters determines the allowed level of motor overload. This can be especially useful when operating with motors smaller
than the drive rating.
For an IM, an IxT protection is used and provides a current reduction if the max overload level is reached.
The max overload level is calculated based on a 150% for 60s.
For a PMAC motor, the motor load is calculated using the rated motor current and the thermal time constant (2 parameters of the PMAC motor
module). The Thermal time constant is used as the constant time of a simple 1
st
order low pass filter.
% Are all related to rated motor current.
PNO Parameter Descriptions
0332
100% Motor Current
Motor current in Amps rms corresponding to 100%
0333
Motor Inv Time Overl’d
Only available for IM motor
Overload % of the motor inverse time protection
0334
Motor Inv Time Delay
Only available for IM motor
Overload time of the motor inverse time protection from cold state
0335
Motor Inv Time Warning
Only available for IM motor
Output information. Becomes TRUE when the overload is 5% of the maximum value before reducing the current
0336
Motor Inv Time Active
Only available for IM motor
Output information. Becomes TRUE when overload reaches 100% of the overload limit