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Reset problem at specific requiredSpeed

Question asked by Young-kyun Park on Oct 6, 2014

Hi, I'm using MC9S12ZVM EVB.

EVB has reset intermittently when I set the variable 'requiredSpeed' to FRAC16(0.155) ~ FRAC16(0.165)

It is respond to 1000 ± 100 rpm in my motor parameters.

Here is my parameters.

Number of pole pair               6
Nominal speed                      3100
Nominal current                     7
Resistance                            0.4
Min required speed                13.8% (REQUIRED_RUN_SPEED = FRAC16(0.069)
Max required speed               200%

Max current                                200%

 

Alignment time                         200

Alignment current                       100%

Number of start up comutations  10

First start period                          40

 

Max Meas Current                   20

 

ALIGN_CURRENT_SCALED       FRAC16(0.35)
START_CMT_CNT                    10
START_CMT_ACCELERATION   FRAC16(0.79224)
MIN_SPEED                              FRAC16(0.069)

MAX_SPEED                            

FRAC16(1.000)
SPEED_STEP                           FRAC16(0.035)
SPEED_CALC_NUMERATOR     41252520
DC_BUS_CURRENT_LIMIT        FRAC16(0.700)

STALLCHECK_MIN_CMT_PREIOD  233

 

I don't know why reset at specific requiredSpeed.

 

How can I fix this problem?

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