Shenzhen Hpmont Technology Co., Ltd.
Chapter 6 Function Introduction
MONT72 Series User Manual V1.0
- 57 -
Ref. Code
Function Description
Setting Range [Default]
F07.12
Asyn. motor torque boost
0.1 - 30.0 [0.1%]
F07.13
Torque boost end-point of asyn. motor
0.1 - 50.0 (F07.03) [2.0%]
To compensate the torque drop at low frequency,
MONT72 can boost the voltage so as to boost the
torque.
F07.13 is relative to percentage of rated frequency of
motor (F07.03).
F07.14
Slip compensation gain of asyn. motor
0.0 - 300.0 [100.0%]
F07.15
Slip compensation filter time of asyn. motor
0.1 - 10.0 [0.1s]
F07.16
Slip compensation limit of asyn. motor
0.0 - 250.0 [200.0%]
The slip of motor changes with the load torque, which results in the variance of motor speed.
Through slip compensation (MONT72 will auto adjust its output frequency according to the motor load
torque) can reduce the influence.
•
In driving status (actual speed < setting speed) and in
generating status (the actual speed > setting speed), the slip
compensation gain (F07.14) can be increased gradually.
•
The value of auto slip compensation depends on rated slip of
motor, so make sure the rated frequency (F07.03) and rated
Rpm (F07.04) are set correctly.
Range of slip compensation = F07.16 × Rated slip.
Rated slip = F07.03 - F07.04 × Np / 60.
•
Np is the number of motor pole pairs.
F07.17
AVR function
0 - 2 [1]
0: Disabled.
1: Enabled all the time.
2: Disabled in Dec. process.
•
The output voltage can be regulated to maintain constant via AVR. Thus, normally the AVR function
should be enabled, especially when the input voltage is higher than the rated voltage.
•
In Dec. process, if F07.17 = 0 or 2, the running current will be a little higher; While if F07.17 =1, the motor
will decelerate steadily and the current will be smaller.
F07.18
Oscillation-suppression mode of asyn. motor
0,1 [0]
0: Depend on exciting component.
1: Depend on torque component.
F07.19
Oscillation-suppression coefficient of asyn. motor
0 - 200 [100]
This function is used to damp oscillation when output current is continually unstable.
•
This function helps to keep the motor running smoothly through correctly adjusting the setting of
F07.19.
Voltage
0
Frequency
F07.03
F07.01
F07.16max
Voltage of manual
torque boost
Boosted
value
-100%
100%
Positive slip
compensation
Negative slip
compensation
Slip
Load
6
Содержание MONT72 Series
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