Motor Control ICs Forum Discussions
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Hi,
I have a scope picture regarding the catch-spin function. The yellow channel represents the Vbus voltage, while the pink channel represents the motor current of one phase. When I start the motor at low speed, the catch-spin function works correctly. The motor current is nearly zero, and the bus voltage remains normal.
However, when I start the motor at high speed, the motor current does not quickly reach zero, causing the bus voltage to rise and eventually reach the over-voltage level. If the bus voltage reaches a critical over-voltage level, the motor phase becomes shorted, and the current becomes uncontrolled, as depicted in the following scope picture.
I want to know if there is any way to better utilize the catch-spin function to avoid high-speed overvoltage faults. All of this relates to the "Forward catch-spin" function. My application involves an industrial fan.
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Hello all,
I am very tired to work with FOC using imc101t-f048, In this FOC method i cannot achieve 3000rpm in 2sec(This is already discussed in this thread (https://community.infineon.com/t5/Motor-Control-ICs/FOC-vs-Trapesoidal/m-p/711550#M3771)) , so i decided to work in Trapezoidal commutation. Kindly clarify IMC101t-f048 microcontroller does support trapezoidal commutation. If support which software is used for trapezoidal like MCE wizard for FOC?
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Hi guys, I use the new iMOTION solution design, but before I've used the old MCE designer and wizard to program my motors and fans. Recently I want to move to the new application iMOTION. I config the wizard first, build the program, connect and programming my fan. Then I go to dashboard and verify if my parameters are correct. In this moment my problems begin: if I don't increase Vd and Vq the fan never moves, but even the application tell me that this two are variable that are not saved in my wizard, so how can I run my fan without entering the dashboard? Plus, in the old MCE designer when I finish to programming my board and detach my infineon, the board works on it's own. So, what's the metter with the new application? I'm missing something? I have to do something after the programmer?
Thanks in advice
Show LessHi,
Does the thermistor input pin of the IMC300 have internal linearization?
thank you.
When I plug the uIO-Stick into the computer and open the "IFX-ePower Bootloader" application, the button "Connect" is grayed out and cannot be clicked, and the ACT light on the uIO-Stick flashes yellow. The ACT light on the uIO-Stick blinks yellow.
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Show LessHi there,
I am confused about the field weakening settings for the IMC controller. It seems like there are two different settings affecting the field weakening controller.
1. In Solution designer setting-> motor control configuration>Control Regulators, there exists field weakening current limit as well as modulation threshold at which field weakening should get activated.
2. In motor control configuration>FOC and inverter setting, there is an SVPWM Over modulation enable/disable setting.
How do these two settings work together? In other words, if I disable field weakening in 1 above (by setting current limit to 0%), while disabling over modulation in setting 2, will field weakening controller be activated? If yes, at what modulation will it get activated (linear modulation range is until 86.6% motor voltage)
My observation during testing when I set a field weakening current limit of 10% (I also had SVPWM over modulation disabled) was that when I increased speed of the motor, the 10% limit was not respected. It is very strange that there is no documentation on the field weakening behaviour of the IMC in the reference or the software manual. Hence, I am forced to ask here.
Further question: In 1 above, is the field weakening current limit, the % of Id current allowed during field weakening?
Show LessHello everyone! Is it possible to directly measure the current running through a DC motor using the BTN9970LV shield? I tried finding the answer in the data sheet and user manual but I was unable to. Thanks for your responses!
Show LessI'm using IMI111T IC. I'm trying to connect to Imotion Solution Designer, but it's not connecting.
1. Install as an all user item during the program installation process.
2. Microsoft Visual was already installed, so I moved on.
3. Program writing is successful through the Programmer Tab through the I Motion Link.
4. Restart connecting when you go to the Dashboard -> Failed to connect with the target
I've replaced the IC about 2 times, and I tried with 3 laptops, but the same result came out.
Please advise connect.
#IMI111T
#i motion
Show Lesscan I find relevant materials for the die temperature sensor of the IMC300? Has it been calibrated at the factory? What methods do we have to verify this ourselves?
Hello community!
At our company we have a very interesting and complex problem with IMC101 microcontrollers. This controller is integrated in multiple boards that we use for our products and since launch of our products we have received multiple claims from our customers of boards not working.
After investigation we have concluded that in some cases motor parameters had been corrupted and in some cases, scripting was corrupted on the field.
Because we can make the product OK again by just reuploading the motor parameters file in some cases and reuploading just scripting file in other cases. It does not seem to be a safety function problem, while I can connect to the device using iMOTIONconfig.exe to the claimed products with corrupted scripting, just for a second before device fails.
Some information regarding our setup:
- IMC101
- Firmware version 1.3.3
- Safety is enabled
- We use User Mode UART but only to update the speed (no motor parameters are updated)
- Products work fine for a couple of months then we get the claim
I would appreciate any insight into this problem or if anyone else has similar experience es to what could be the problem.
Regards,
Jure
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