Vonsch Quatrofrem Series, Конфигурация и диагностика

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UNIFREM v.3.41x
10 May 2017 Page 45 from 180
Name [ID] Description Def.
sequence [326] replaces the physical exchange of the motor phases if it is necessary to
achieve that when the motor should run in the forward direction (REVERSE
inactive) it rotates in the opposite direction.
It is used to set the desired direction of rotation of the connected motor.
Direct Voltage is generated in the U-V-W order.
Inverted Voltage is generated in the V-U-W order.
Reset the motor
operation hours
MT [1075]
This command resets the operation hours of the motor MT operational hours
[497] (page 23).
Set motohours
MT [502]
By changing this parameter, it is possible to preset operation hours of the
motor MT operational hours [497] (page 23).
0,0 h
0,0 h ÷ 200000,0 h
7.2.4 SPECIAL PARAMETERS OF THE MOTOR
Group of parameters number [557]
Parameters neccesary for special operation modes of the converter, e.g. slip compensation, IR voltage drop
compensation and vector control.
MENU \ SETTINGS \ MOTOR \ SPECIAL PARAMETERS OF THE MOTOR
Name [ID] Description Def.
Time constant
MT [79]
Time constant of the motor excitation. 0,120 s
0,001 s ÷ 10,000 s
This parameter influences the motor excitation speed and is necessary for the correct
function of the motor mathematical model. In vector control mode, this parameter is
calculated from Rotor resistance [439] (page 45), Mutual inductance [441] (page 45) and
Leakage inductance [440] (page 45).
MT deexcitation
time [1171]
Motor deexcitation time after PWM turning off. 1,00
0,00 ÷ 10,00
Represents multiple of Time constant MT [79] (page 45) parameter value, during which
PWM outputs are blocked after previous PWM turning off.
Magnetizing
current [355] Magnetizing current of the motor (I0). This parameter has no meaning for
SMPM.
2,00 A
0,01 ÷ I
NK2
4
Correct value of the magnetizing current is generally 30 to 90% of the parameter value
Nom. current [151] (page 44). Defines the value of motor excitation in the V/f control
mode.
4
The value depends on the inverter power line. See installation manual.
Stator resistance
[345]
Stator resistance value. Value of this parameter can come from the motor
macros or the identification. For SMPM motor control, this parameter is
interpreted as Rd.
6,70000 Ω
0,00001 Ω ÷
100,00000 Ω
Rotor resistance
[439]
Rotor resistance value. Value of this parameter can come from the motor
macros or the identification. For SMPM motor control, this parameter has no
meaning.
1,00000 Ω
0,00001 Ω ÷
100,00000 Ω
This parameter is required for the correct operation of the motor mathematical model in
the vector control.
Leakage
inductance [440]
Value of the stator leakage inductance. Value of this parameter can come
from the motor macros or the identification. On the parameter transfer from
older VQFREM converter, it is calculated as (Ls - Lm). For SMPM motor
control, this parameter is interpreted as the difference Lq-Ld.
0,1000000
H
0,0000000 ÷
Mutual inductance
[441]
This parameter is required for the correct operation of the motor mathematical model in
the vector control.
Mutual
inductance [441]
Value of mutual (magnetizing) inductance. The value of this parameter can
come from motor macros, identification or magnetization curve. For SMPM
motor control, this parameter is interpreted as Ld.
0,1000000
H
0,0000001 H ÷
2,0000000 H
This parameter is required for the correct operation of the motor mathematical model in
the vector control. Correct value has a great effect on the current stability control.