249
5. Parameter Description
Eaton Electric General Inverters DF1 Series
UMXXXXXXXXE February 2020 www.eaton.com
5.14.1 Slip compensationV/F
•
This parameter can be used to set compensation frequency and reduce the slip to close the setting speed when the
motor runs in the rated current to raise the speed control accuracy.
Parameter
Name
Factory
Value
Setting Range
Content
13-00
P.89
Slip compensation coef-
ficient
0
0~10
0: Slip compensation is forbidden.
10: The compensation value is 3% of the target frequency.
ote:
N
1.This function is only valid under the V/F mode(00-21=“0”).
2. During slip compensation, the output frequency may be larger than the setting frequency.
5.14.2 Modulation coefficient
•
It is used to determine the ratio between the maximum output voltage and the input voltage.
Parameter
Name
Factory
Value
Setting Range
Content
13-01
P.246
Modulation coefficient
1.00
0.90~1.20
The maximum output voltage =“13-01”× the input voltage
Modulation coefficient
•
The users can use this parameter to obtain an output voltage that is higher than the input voltage.
•
But the output voltage waveform at this point will generate distortion and contain assorted harmonics. It may also
increase the motor torque harmonics and noises.
5.14.3 Vibration inhibition
•
Inhibit the great vibration of inverter output current and motor rotation speed and the motor vibration.
Parameter
Name
Factory
Value
Setting Range
Content
13-02
P.285
Low frequency vibration
inhibition factor
5
0~8
If motor vibration is generated at lower frequency, adjust the
set value of 13-02.
13-03
P.286
High frequency vibration
inhibition factor
509
XX00~XX15
00XX~15XX
If motor vibration is generated at higher frequency, adjust
the set value of 13-03. Gradually increase the set value by
the unit of 1.
13-03 two high and low two set the range of 0 ~ 15
Vibration inhibition factor
•
For the actual application, use the vibration-generating frequency that is lower or higher than half of the motor rated
frequency to determine whether the occurred vibration is a low-frequency vibration or a high-frequency vibration.
i.e:
If the rated frequency on the name plate of the motor is 50Hz,
And the vibration-generating frequency is lower than 25Hz, then this is a low-frequency vibration.
On the other hand, if the vibration-generating frequency is higher than 25Hz, then this is a high-frequency vibration.
ote:
N
When the motor load is light, current flow may happen at certain specific operation frequency. This situation may cause the
motor to vibrate slightly. The user can neglect it if this trivial vibration has no impact on the application.
