How to calculate speed of a BLDC motor with quadrature encoder
Hello all,
I am trying to do speed control of a BLDC motor with a Parker MD4. I have a quadrature encoder for the motor and would like to know how to calculate the speed for the motor using the IQAN Design software. I can calculate the position of the motor from the sensor, but to estimate the speed in rpm, I need to perform differentiation of the position data. I wanted to know if there is a channel/library/block that will give speed outputs or will do differentiation? Or should I write my own Qcode for differentiation?.
MD4-5 orientation
When using the MD4-5 in portrait mode are the large C1 & C2 connectors at the top or bottom of the module?
MD4-5 stuck in start up screen after loading new app
has anyone experience this issue before, got an MD4-5, it will not go pass the start up screen with the parker logo on it.
have load a new blank app to try and reset it, but issue remains. any ideas
Display 12"
For future projects I need a touchscreen display with a size of 12 ".
Is something planned in this size?
ISO 26262
Dear Gustav.
Could you please tell me if the MD4 is ISO 26262?
Regards
Cyril
Touchscreen issues
Most have occurred after several years of operation so not particularly early hour failures, but I would still expect a longer life from a touchscreen (my phone for example gets much more use and abuse).
Just wanted to put this out to see if others are seeing the same issue or if Parker is aware and has made any improvements to the screen over the years?
MD4-10 - Axis Video Encoder M7011 -MJPEG link for 4.07
Hi all,
I have read all forum topics which include connecting IP camera to the Parker MD4, and try almost every combination of URL and still didn't found the right one.
Does anyone knows what URL should I use and maybe why I could not get stream from this Axis Video Encoder(M7011), it states in datasheet it suppports MJPEG and with VLC I can connect and stream rtsp but when I check in VLC stream info it sjhows that it uses MPEG4.
1. I have set right ip addressa and subnet mask 192.168.128.xxx/255.255.128.0
2. I have enable anonymous access on Video encoder
3. use every possible link I could found (axis-media/media.amp, axis-cgi/mjpg/video.cgi, mjpg/video.mjpg)
Is it possible that this video encoder does not support MJPEG even if it states this in documentation?
Does anyone have experience with this video encoder model?
Thanks!
MD4 using a three wire speed sensor rather then encoder for unidirectional pulse count
Hello Is there a way to use a GS60 speed sensor with the MD4? I have not tried it yet but would really prefer to use a three wire sensor then an encoder.
MD4 functionality after screen crack
Say the MD4 screen is broken or cracked, would the I/O and CAN messages still work on the module, assuming no damage to the board in the enclosure?
MD4 +RTC RESISTOR
The MD4 documentation states to use 1.5K ohm resistor on the +RTC circuit. Is the 1.5K ohm the only type that is usable, or is there a range that will work?
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