5motor control & motor settings – Lenze i700 User Manual
Page 126
5
Motor control & motor settings
5.12
Fine adjustment des motor model
126
Lenze · i700 servo inverter · Reference manual · DMS 1.5 EN · 03/2014 · TD05
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4. Set the characteristic by means of the determined values for Vp (but do not enter any values in
for axis B yet).
• Here, the values of the grid points which have not been adjusted must be determined by
interpolation between two values.
• Note: In this example it was assumed that the inductance does not change considerably
below 3.75 A. For this reason the same Vp value resulting from a measurement with a motor
current of 3.75 A was used for all grid points below 3.75 A.
[5-4]
Determined saturation characteristic
5. Set the gain Vp and the reset time Tn to the values that have been determined during the
adjustment with rated motor current (in this example "5 A"):
• Set
for axis B) = "3.8 V/A".
• Set
for axis B) = "5 ms".
6. Scale the Vp values on the Y axis of the characteristic to a Vp setting of "3.8 V/A":
[5-5]
Scaling of the determined saturation characteristic to "100 % Vp"
15 A
7.5 A
3.75 A
11.25 A
12.38 A
5 A
0
6.25
12.5
18.75
25
31.25
37.5
43.75
50
56.25
62.5
68.75
75
81.25
87.5
93.75
100
Vp [V/A]
0 A
0
1.0
1.4
2.6
3.8
5.2
I
max
[%]
x2
x3
x4
x5
x6
x7
x8
x9
x10
x11
x12
x13
x14
x15
x16
x17
x1
0.7
15 A
7.5 A
3.75 A
11.25 A
12.38 A
5 A
0
6.25
12.5
18.75
25
31.25
37.5
43.75
50
56.25
62.5
68.75
75
81.25
87.5
93.75
100
Vp [%]
0 A
0
100
I
max
[%]
x2
x3
x4
x5
x6
x7
x8
x9
x10
x11
x12
x13
x14
x15
x16
x17
x1
Vp = "3.8 V/A"
100 %
º
50
150