Parker AC30 User Manual

D-108 Parameter Reference
AC30 series Variable Speed Drive
MRAS
Parameters::Motor Control::MRAS
These parameters are associated to the internal induction motor speed estimator (MRAS) module.
Parameter Name
No.
Path
Default
Range
Units
Writable
MRAS Speed Percent
286
Parameters::Motor Control::MRAS
x.xx
Min to Max
%
NEVER
Diagnostic parameter that dispays speed calculated by the estimator as percent.
MRAS Speed RPM
1634
Parameters::Motor Control::MRAS
x.xx
0.000 to 30.000
s
NEVER
Diagnostic parameter that dispays speed calculated by the estimator as RPM.
MRAS Field Frequency
1635
Parameters::Motor Control::MRAS
x.xx
0.000 to 30.000
Hz
NEVER
Diagnostic parameter that dispays field frequency (electrical frequency) that the estimator provides for vector rotation.
MRAS Torque Percent
1560
Parameters::Motor Control::MRAS
x.xx
Min to Max
%
NEVER
Diagnostic parameter that dispays torque calculated by the estimator as percent.
MRAS Torque
1634
Parameters::Motor Control::MRAS
x.xx
0.000 to 30.000
Nm
NEVER
Diagnostic parameter that dispays torque calculated by the estimator as Nm.
Switchover Enable
1635
Parameters::Motor Control::MRAS
ALWAYS
A boolean that enables or disables the ability to automatically switch into sensorless operation in the case of an encoder failure.

Parker AC30 Specifications

General

Protection Rating	IP20
Series	AC30
Type	Variable Frequency Drive
Overload Capacity	150% for 60 seconds
Cooling Method	Fan Cooled
Communication Protocols	CANopen
Power Range	0.75 to 250 kW (1 to 350 hp)
Switching Frequency	2kHz to 16kHz
Safety	Safe Torque Off (STO)
Output Current	Model Dependent
Power Rating	0.75 to 250 kW (1 to 350 hp)
Efficiency	>97%
Protection Features	Overcurrent, overvoltage, undervoltage, short circuit, overheating
Dimensions	Model Dependent
Weight	Model Dependent
Operating Temperature	-10°C to +40°C
Output Voltage	0 to Input Voltage