Saturation Behavior; Cut-Off Frequency For The Field Weakening Range - Parker Compax3 Operating Instructions Manual

Parker EME
1) Nominal point in the basic speed range
Lhmax: max. main field inductance
Sbeg: Beginning of Saturation
Send: End of Saturation

Saturation behavior

The saturation of the main field inductance can be considered with the help of the
following characteristic.
Activate the "consider saturation values" checkbox.
L /% v. L
Hmax H
Pa[%]
(Lhmax)
z.B 160%
100%

Cut-off frequency for the field weakening range

The statement of the cut-off speed defines the beginning of the field weakening
operation. From the cut-off speed on, the magnetization current and thus the force
constant of the motor are reduced inversely proportional to the speed; the motor is
operated in the field weakening range. In the field weakening range, the shaft
power produced remains constant.
12000
10000
8000
6000
4000
2000
0
0
1: Basic speed range
2: Field weakening range
192-120113 N08 C3I12T11 - December 2010
Pb[%] (Sbeg)
z.B. 70%
1
1000 2000
n/rpm
Setting up Compax3
1)
I / % v. I
mR
100% (Send)
60
50
40
30
20
2
10
0
3000 4000
P=f(n)
M=f(n)
mRN
191