Example Of A Field Characteristic - Siemens 6RA70 Series Instructions Manual

PNU Description

Example of a field characteristic

The example characteristic exhibits a sharper curvature (i.e. a lower degree of saturation) than the field characteristic produced by the
factory setting.
Φ
Motor flux in % of ratet flux
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
P124
P123 P128
P122 P127
P121 P126
r120 P125
1) For actual field currents I f of > 100% of P102, the characteristic is extended linearly for internal calculation of the motor flux.
10-26
P129 P134
P133
P132
P131
P130 P135
Value range
[Unit]
Steps
P139
P138
P137 Field current in % of P102
P136
SIMOREG DC Master Base Drive Panel Operating Instructions
No. indices See
Factory Change
setting (Access /
Type Status)
1)
100,0% I
f
SIEMENS Energy & Automation