Parker AC30 - Page 378

D-118 Parameter Reference
AC30 series Variable Speed Drive
Parameter Name
No.
Path
Default
Range
Units
Writable
PMAC Back Emf Const KE
0560
Same as PNO 555
60.0
0.0 to 30000.0
V
ALWAYS
Set the motor’s Back EMF line to line, rms value (Ke, Volts rms per 1000 rpm)
PMAC Winding
Resistance
0561
Same as PNO 555
6.580
0.000 to 50.000
Ohm
ALWAYS
Set the motor’s resistance, line to line at 25 °C.
PMAC Winding
Inductance
0562
Same as PNO 555
20.00
0.00 to 1000.00
mH
ALWAYS
Set the motor’s inductance line to line at maximum current. This parameter is used within the current loop and is related to the overall
proportional gain.
PMAC Torque Const KT
0563
Same as PNO 555
1.00
0.00 to 10000.00
Nm/A
ALWAYS
Torque constant (Kt, Nm/A rms).
This parameter is used to compute the current demand given a torque demand :
Torque demand = KT x Current demand
PMAC Motor Inertia
0564
Same as PNO 555
0.00100
0.00000 to 100.00000
kgm²
ALWAYS
Rotor inertia of motor.
PMAC Therm Time Const
0565
Same as PNO 555
62.000
0.000 to 10000.000
s
ALWAYS
Copper Thermal Time constant(s). If not known set to 300s.
This parameter is used for the motor thermal protection : Refer to Motor Load module.
It represents the time needed to reach 63% of the rated load of the motor if 100% of the rated current is applied to the motor (typical
time constant of a first order low pass filter).