Has there been any thought to have a master module behave as a slave module?
I have a few customers tat build equipment with the IQAN system as the main controller. They are currently using the MD4 or MD4 as the head master and multiple XA2 modules as the slave units. They want to use the MC43 modules to replace the XA2 modules so simplify the system, but when doing so, have had issues with making the MC43 modules as optional. The XA2 modules were on specific attachments that were connected to the main system and then configured as being present and then thus enabled in the application. If the XA2 needed to be replace, there was no need to worry about any software or firmware to be loaded onto teh XA2 module to get it to work in the application.
Now with all that being said, the MC43 modules used on the attachments present a problem if they were programmed with a different application or firmware when initially set up. The OEM cannot simply send out a replacement MC43 reflashed with a base attachment application and have the end user plug it in and have it work.
XA2[1]
HI All.I used XA2[1] for voltage and digital inputs for MD4,While testing I got "NO Contact" Error in RED color as I did not connect any expansion units.Can I give these input values directly to MD4 with CAN and without using Expansion unit XA2[1] connection?
PWM frequency for L90 valve
Hello sir,
I am working with a Parker L 90 valve. The recommended PWM frequency is 100 to 125 hz. I wanted to understand the reason behind.Does this has anything to do with the Resistance/inductance of the coil ? Like the rise time of current in coil ?
If I run the coil with high PWM frequency say 2000 hz , will the current ever reach to maximum (I = V/R) ?
Is the recommendation of 100 hz only for avoiding switching losses or it has to do with performance as well .
Thanks
Sathish.R
Hello.
In other systems you can maybe set the PWM frequency and dither frequency separately.
You would add a small oscillation (the dither) on top of the PWM to avoid stiction and hysteresis.
In an IQAN system the PWM frequency is low enough that it creates an oscillation by itself, thus the PWM frequency is also the dither frequency.
Directional Pulse Count Inputs
I need 8 directional pulse count inputs... Is there any hope other than using 4 XA2s? Any plans for an IQAN expansion module that can do 4 or even 8 of this kind of input?
I can't find any 3rd party CAN modules that have this type of input. It seems to be all industrial modules.
Adding safe paswords using IQANSync
I have the latest IQANSync version 5.02.6 downloaded to my iPhone. In the " Manage passwords" tool I can request a safe password however I do not know how to add the safe password once its created. How do we add the safe password?
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