MX2 Quick Start Guide 19
PROGRAMMING MX2
Next diagram shows the auto-tuning procedure with motor rotation
A fine tuning could be achived setting parameter H005 that adjust the motor speed response. If the motor vibrates at constant
speed then you should reduce the H005 setting, if on the contrary the response of the motor is not enough you could increase the
value.
The H005 acts as a global gain response but also is possible to adjust the motor response at certain areas adjusting the motor
parameters separately.
• The R1 parameter is adjusting the voltage applied at low speed, below 15-20Hz
• No load current I0 is used for adjusting the voltage above this 15-20Hz
• Finally R2 value is used to adjust the slip of the motor
H003
Motor size
Motor poles
Base freq.
AVR voltage
H004
A003
A082
H001 02
___o
Completed
Failed
___9
H002 02
(1) 1st AC excitation (no rotation)
(2) 2nd AC excitation (no rotation)
(3) 1st DC excitation (no rotation )
(4) V/f operation (80% of base freq.)
(5) SLV operation (X % of base freq.)
(6) 2nd DC excitation (no rotation)
(7) Displays the result.
Step 1: Set motor size and
motor poles
Step 5: Clear display by
STOP key
Step 6: Activate motor
constant by H002
Step 2:Set base freq. and
AVR voltage
Result is displayed
(Note 1)
Auto-tuning starts
When RUN cmd. is given, the motor runs according to
following steps.
Step 3: Enable auto-tuning
Step 4: Start the inverter
according to RUN
cmd source
15/20 Hz
Hz
R1
V
R2
Speed
No-load
current
I129E-EN-02+MX2+QuickStartGuide.book Seite 19 Mittwoch, 7. November 2012 1:54 13
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