Impossible to configure EVAL-M1-101TF and EVAL-M1-05F804R with a standard Brushless Motor

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seb_44120
Level 3
Level 3
25 sign-ins First like given 5 questions asked

Hello,

We bought the EVAL-M1-101TF + EVAL-M1-05F804R Combo and tried to spin a standard Brushless Motor.

Motor used is : QBL4208-41-04-006

 

Specifications in datasheet are :

No. of Pole : 8

No. of Pole : 1,79A

Rated Speed : 4000RPM

Line to Line Resistance : 1,8Ohms

Line to Line Inductance : 2,6mH

 

We tried to configure parameters into MCE Wizard (in Default Hardware Setting For New User) with these parameters :

Question 2 : 1,79 ARms

Question 3 : 8 poles

Question 4 : 0,9Ohms

Question 5 : 1,3mH

Question 6 : 1,3mH

Question 7 : 1.36 V/krpm (For this parameter, we measured with a scope : 2V peak to peak at 20Hz)

Question 8 : 4000RPM

Question 9 : 500RPM

Question 10 : 50RPM/sec

Question 11 : 0RPM/sec

Question 12 : 0sec

Question 13 : 1000RPM

Question 14 : 50%

=> When we calculate parameters, we have errors :

ERROR 1 : Motor 1 Rs  is out of range

ERROR 2 : Motor 1 L0  is out of range

ERROR 1 : Motor 1 VoltScl  is out of range

 

Could you help me to find what parameter could be wrong ?

 

Thank you !
Sebastien

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1 Solution
psb
Moderator
Moderator
Moderator
250 sign-ins 25 solutions authored 100 replies posted

@seb_44120 ,

   The value of Ke entered is wrong.
   Error in this value will lead to an error in the calculation of the Rs, Lo, VoltScl.

 

Best Regards,
Sai

View solution in original post

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5 Replies
seb_44120
Level 3
Level 3
25 sign-ins First like given 5 questions asked

Hello, In addition to my last post :

We are using a control card EVAL-M1-101TFTOBO1 with power card EVALM105F804RTOBO1

Our test motor is a Trinamic QBL4208-41-04-006 DC brushless:
the parameter of the motor are:
Moteur DC brushless , 24 V, 4000 RPM, 0.0625 Nm, 26 W, 42 mm
- Resistance 0.9 Ohm
- Inductance 1.3mh
- Poles: 8
- Epk mesured beetwen two phases (question 7): 1V at 20Hz -> Ke = 1.36



We get a motor gatekill fault (cf error.png)

Using the MCEWizard Configuration Files v1.0 reduce the number of question to be answered from 95 to 14.
But if we looked at the experts parameters (provided by EVAL-M1-101T-05F804_24k-S.mc2 from MCEWizard Configuration Files v1.0) question 93, the default value for overcurrent triplevel for internal gatekill comparator is 2A (cf GateKillSetup_default.png), I do not understand why this value is si weak , reading the EVALM105F804RTOBO1 datasheet the maximum is 17A

Do you have any idea of our motor gatekill problem ?

Regards,

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psb
Moderator
Moderator
Moderator
250 sign-ins 25 solutions authored 100 replies posted

For the overcurrent trip level, actual value of trip current needs to be entered. Please enter the desired current (actual value) above which the gate kill is intended. 

Best Regards,
Sai
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psb
Moderator
Moderator
Moderator
250 sign-ins 25 solutions authored 100 replies posted

Hello @seb_44120 ,

Please share the MCE wizard file, so that we can go through the entire list of parameters an settings which must have caused these errors and get back to you immediately. The errors shared (ERROR. ERROR 1, ERROR 2) are caused either due to the internal computational results being out of range due to the set parameters or any error in syntax, for instance, VoltScl might have been caused due to the calculated dc bus voltages being out of range of the set dc bus voltage values. 

For more information on gate kill, please refer to section 3.6 of https://www.infineon.com/dgdl/Infineon-UG-2020-25-EVAL-M1-05F804R-UserManual-v01_00-EN.pdf?fileId=55...

Thanks,
Sai

Best Regards,
Sai
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seb_44120
Level 3
Level 3
25 sign-ins First like given 5 questions asked

Thank you @psb  for your reponse !

What a pity : .mc2 file format is not supported on this forum 😞

Here is the .mc2 zipped file corresponding to my configuration.

It would be great if you could have a look on our configuration !

Thank you

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psb
Moderator
Moderator
Moderator
250 sign-ins 25 solutions authored 100 replies posted

@seb_44120 ,

   The value of Ke entered is wrong.
   Error in this value will lead to an error in the calculation of the Rs, Lo, VoltScl.

 

Best Regards,
Sai
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