electric inverter afr gain and frequency


AFR GAIN.

0: carrier frequency is 2 k Hz . 1:carrier frequency is the setting of c 6-0 1. 2: carrier frequency is 5 k Hz (the carrier frequency of the inverter of 400 v is 2.5  Hz ) 185 ~ 300 kw .

NOTE:
normally it is not necessary to change this setting , fine , tune the gain when motor operation is unstable causing hunting to occur or torque / speed responsiveness is low . when hunting occurs, increase the gain by 0.05 increments while checking the motor responsiveness. when responsiveness is low decrease the gain by 0.05 increments while checking the motor responsiveness.

AFR TIME.

it is used to set speed feedback detection control (AFR) gain in unit of multiples .

CARRIER FREQUENCY SELECTION DURING AUTO TUNING .

0: carrier frequency ,2 k Hz.
1: carrier frequency is the set value of constant (c 6-0 1).
2: carrier frequency is 5 k Hz (the ca carrier frequency of the inverter of 400 v is 2.5 Hz )185~300 kw NOTE:it is used to set speed feedback detection control (AFR) gain in unit of multiples.

FREQUENCY REFERENCE.

1: sets the frequency reference in the units used in 01-03 (frequency reference display/ set units,)the factory setting unit for 01-03 is Hz.
2: the frequency reference when the multi, function input multi step speed reference 1  is on , (the unit is set be 01-03).
3: the frequency reference when the multi function input multi step speed reference  2 is on  (the unit is set be 01-03) .
4:the frequency reference when the multi function input multi step speed reference 1, 2 is on .(the unit is set be 01-03).
5: the frequency reference when the multi function input multi step speed reference 3 is on ,(the unit is set be 01-03)
6: the frequency reference when the multi function input multi step speed reference 1, 3 , is on ,(the unit is set be 01-03).
7: the frequency reference when the multi function input multi step speed reference 2, 3 , is on (the unit is set be 01-03).
8: the frequency reference when the multi function input multi step speed reference 1 , 2 , 3 is on  ( the unit is set be 01-03)

HUNTING PREVENTION SELECTION.
0:DISABLED
1:ENABLED

NOTE:   THE HUNTING PREVENTION FUNCTION IS USED TO STOP A MOTOR UNDER A LIGHT LOAD FROM HUNTING . THIS FUNCTION IS EXCLUSIVELY  FOR  THE  V/F  CONTROL  MODE, WHEN  GREATER RESPONSIVENESS THAN OSCILLATION CONTROL IS  REQUIRED SET HUNTING PREVENTION TO ,DISABLED
.
HUNTING PREVENTION GAIN.

SETS THE RATIO FOR HUNTING  PREVENTION GAIN.

NOTE:  INCREASE THE SETTING IN  C 7-0 2 OSCILLATION OCCURS WHEN OPERATING  WITH A LIGHT LOAD . (IF THE SETTING IS INCREASED TOO MUCH , THE CURRENT CAN FALL TO THE POINT WHERE STALLING OCCURS,). DECREASE THE SETTING IN        C 7-0 2 IF STALLING OCCURS DISABLE THE HUNTING , PREVENTION FUNCTION (C 7- 0 1=0) IF HIGH RESPONSIVENESS IS MORE IMPORTANT THAN SUPPRESSING OSCILLATION.



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