Does anyone know how the 10" version of the MD4 is coming along. The last information I had was the unit was not released for production yet due to screen fogging issues. I hope that is resolved as I may well have an application for the unit.

Is the unit available for sale?

Hello,

I am currently working on a machine that uses an IQAN system with an MD4. For some context: it’s a mobile hydraulic machine driven by a diesel engine. I’m running into an issue that I haven’t been able to pinpoint to a specific cause, and I’m wondering if anyone recognizes this error code or has ideas on what I could try next.

The error code I get is:

Run fault PID 90131 TID 14 Signal 11 Code 0

The situation is as follows. When I start the machine, everything initializes fine. The whole IQAN system comes up normally, the UI works, and I can operate the control system without any issues. When I give the signal to start the engine, it works in two steps:

First, the engine ECU is powered up. Then the ECU sends an OK signal back, after which I need to trigger the start again to actually crank the engine.

The ECU and the IQAN system communicate over CAN. However, as soon as I give the first start signal and the ECU powers up, the MD4 immediately goes into a blue screen and completely locks up. Nothing responds anymore, and I can’t recover from the error without completely disconnecting the system and doing a full reset.

As far as I can see, there’s nothing useful written in the logs that I can trace back to the blue screen—only the information shown on the display itself.

I’ve been trying to diagnose this for a while now, but I’m not sure what could be causing the fault in the first place. The only thing I could find online was a post mentioning CAN bus overload, but I don’t really see how that would apply here.

At this point I’m mainly looking for ideas on what could cause this error, or where I should start with further diagnosis. Any ideas are welcome.

We have experienced issues with two MD4-10 units where the touchscreens have become unresponsive. These master modules were being used on two different underground mining machines, operating in the same area of the mine with high levels of H₂S. Could there be a correlation between H₂S exposure and the touchscreens becoming unresponsive?

Hi, I'm looking to purchase a second-hand MD4 (and XC42) to replace our current control system. Has anyone got these in stock that could be shipped fairly quickly?

Thanks in advance!

What material is used for the molded rear panel of the MD4-10?  I was asked by a customer and couldn't find anything about it in the catalog.

Can a 12V relay be driven by the LS DOUT of an MD4 supplied with 24V without protection or diagnostic issues?