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SINUS/ISD 15P0082B8
USER MANUAL
4 - 7/14
4.5.4 MANUAL TUNING
4.5.4.1 Tuning using the Motor Equivalent Circuit
V
I
I
I
R L
L
L
R
S
1
m m
2
s
s r
s
r
Figure 4- Figure 4-5 5 The Motor Equivalent Circuit The Motor Equivalent Circuit
From the motor equivalent circuit, the values programmed into the Inverter are:
STATOR RES
=
R
s
Ohms
LEAKAGE INDUC
( ) ( )
( )
= + −
+
L L
L
L L
m
m
m
1
2
2
mH
MUTUAL INDUC
( )
( )
=
+
L
L L
m
m
2
2
mH
.
STATOR RES: STATOR RES: calculate the value according with the using connection:
∆
:
5 . 1 cables motor between resistance
×
: :
2
cables motor between resistance
MUTUAL INDUC: MUTUAL INDUC: calculate the value using the formula suitable to motor
∆
220
:
1 2 .
. no load calib
∆
380
:
2 1 .
. no load calib
380
:
0 7 .
. no load calib
In MUTUAL INDUC MUTUAL INDUC parameter must be inserted the 90% of the value calculated with the above-mentioned
formulas.
LEAKAGE INDUC: LEAKAGE INDUC: The value corresponds to the 10% of the calculated mutual induc, therefore this value must
be inserted in the LEAKAGE INDUC parameter.
N.B. N.B. As a verification, the addition of MUTUAL INDUC + LEAKAGE INDUC must be equal to the mutual
Induc calculated value.
The FULL LOAD CALIB parameter should be set to the motor nameplate rms line current. The NO LOAD CALIB
parameter should be set to the value of rms line current drawn from the Inverter while running the motor at base
frequency (using the conventional V/F fluxing strategy) under no-load conditions. These two parameters are
inside the QUICK SET-UP menu. Once the no-load and full-load currents have been correctly set, the following
manual tuning sequence should be followed.
MMI Menu Map
1
SETUP PARAMETERS
2
VECTOR SETUP
MMI Menu Map
1
SETUP PARAMETERS
2
QUICK SETUP