MADK

How could I measure Initial angle by hall sensor and use it?
I have a problem with IMC101. When i'm trying to use sensorless pmsm with InitialSense sometimes motor rolls back at start up. So i want to use 3 digital hall sensors for correct start. But how could I do this without using Hybrid PLL Mode? ( At low speed hall sensor works worse then flux pll) Show Less

DFP for IMC in KEIL
Hi
Im working by IMC300A and need to write my code in KEIL IDE so I need download firmware pack(DFP) to add in Keil pack
in " AN2020_10 IMC300A peripheral use case examples " write about one library
like:
"IMC_ADC_Init();
IMC_DAC_CH2_Init() ;"
i think there are one library like XMC1000 and we can add to KEIL pack
but i cant find this pack
thank Show Less

Hi
Im working by IMC300A and need to write my code in KEIL IDE so I need download firmware pack(DFP) to add in Keil pack
in " AN2020_10 IMC300A peripheral use case examples " write about one library
like:
"IMC_ADC_Init();
IMC_DAC_CH2_Init() ;"
i think there are one library like XMC1000 and we can add to KEIL pack
but i cant find this pack
thanks Show Less

IMC101-T04

I need to get absolute MOTORCUURENT and MOTORVOLTAGE.
How can I get scale factor by reading regsters ONLY.

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External software does not know about motor parameters and it must get it from IMC101 registers.
? Show Less

Hello everyone,

I am using a IMM101T and I am controlling it via UART.
It is working, but there is a part of the communication that is not working as stated in the datasheet.

here you can see the Tx and Rx seen from a logic analyzer.





You can see that it a simple "read status of faults", and that both checksums are correct. the IMM is signaling a 0x09 as fault flags. and everything is fine until there.

But: the second byte of the reply should be 0x80 (or more general second byte of Tx with first bit to 1) and I see a 0x3f.
This byte is always 3f even for other commands.

I think it is an issue with my configuration so I am attaching it .

What should I do? Ignore that part of the datasheet? or do i have mis-configured something?
Kind regards
mngr0 Show Less

I’ve got a serious problem with a IMC101 implementation.

We’ve been using a IMC101 in one of our products for a while now, and it’s been working ok for the most part.
However, our customer has been unhappy with its stall behavior and jerky start-up, so we’ve decided to switch from flux sensing to using hall sensors.

Everything had been going well with just switching the sensor configuration and angle calculation methods in the wizard.
We were really happy with its performance until we tested it in the opposite direction.

When running with speed in the positives (we’d been testing with negative speeds), after loading the motor down and releasing, the speed would suddenly and rapidly increase, well beyond the limit of what should be possible.
The config is set for a maximum speed of 300RPM, but I would guess the motor would reach over 1000RPM before having to manually shut it down.
Once the behavior happened, starting the motor from idle would result in the same crazy acceleration to excessive speeds, seemingly ignoring the target speed, direction, and ramp speed.
Only cycling the power to the unit would fix the problem, at least until the next time the motor was loaded down again while running in the positive direction.

I don’t understand how this is possible. Are there not protections in place to prevent this kind of speed runaway? I’m now worried that this sort of thing could happen to our units in the field.

The wizard and designer software we’re running are version 2.3.0.1, and the firmware was originally V1.03.01 but I’ve since upgraded to V1.03.03 with no improvement.

I’ve attached the config and wizard files, as well as the only graph I was able to get before our development unit fried. It shows the motor rapidly accelerating to what appears to be 1100RPM when starting from idle to a set target of -55RPM, before being stopped. Show Less

Hello, i have IMC101. I make my own pcb as referance design. I tried programming with uart using rs485 transreciever but i failed. D i have buy imotion link or eval board for programming? Show Less