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Differential Analog Sensor Signal

Doug Coutlee 2 years ago updated 2 years ago 2

I am looking for a way to use a shunt style current sensor that has a differential analog output with an IQAN module. Does anyone have suggestions? https://riedon.com/resistors/view/ssa  Riedon-Smart-Current-Sensor.pdf

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Reading value of a PWM valve with a PWMIN

Andy Pauly 2 years ago in Master modules / MC4x updated by Gustav Widén (System support) 2 years ago 1

Hello

A stand alone system have 4x PWM proportional valves in 24VAD. I use a MC43. 

I like to ready this PWM value so that my system can give the right amount of oil from the variable pump. 

I like to use the PWMIN.  IN_33 and IN36 are for 5Volt sensors. Can I still use this INputs?? or do I need to use IN-37 and IN_38 because they are the only one rated to 24V. Can I somehow use a resistor so that I can use the 5Volt PWMIN.?? Sorry:  I am not sure even reading you documentation. 

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50 kbps Component on 250kbps J1939 Bus

Chris Litwin 2 years ago in Master modules / MC4x updated 2 years ago 2

Will connecting a 50kbps component to a 250kbps J1939 bus cause the bus to shut down. I can change the baud rate to 250kbps later, but will I even be able to send the message to change the rate? The messaging would be from a MC4x series is that matters.

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Answered

Terminal Resistors

Deanne 2 years ago in Master modules updated by Gustav Widén (System support) 2 years ago 1

Are terminal resistors needed when programming MD4's or do they already have an internal termination resistor?

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MD4 Display Controller Certification

Dragos Popa 2 years ago in Master modules / MD4 updated by Gustav Widén (System support) 2 years ago 3

Hello,


Our company is using the MD4 Parker Display for the logic of the exterior lights system on a electrical vehicle. We are currently in the process of certifying the system for the FMVSS 108. In said certification, there is a minimum amount of cycles that the lighting system has to respect. Usually however, the system contains a module that does the logic and in our case that logic is in IQAN. So is there an equivalent for the MD4 module, like the MTBF(minimal time before failure) for example, to prove that the exterior lighting system can support 175,000 cycles. 


Thanks for your help.

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CIN

Heiko Epkens 2 years ago in Master modules / MC4x updated by Gustav Widén (System support) 2 years ago 1

Hello.  I am testing my MC41 application using a Eurtherm G-438 ( https://www.farnell.com/datasheets/1658070.pdf?_ga=2.178838692.143399012.1654225772-1786236872.1616697046&_gac=1.2754052.1650585147.EAIaIQobChMIlfWcop-m9wIVTsLCBB0Krwa-EAYYBiABEgKL5PD_BwE)  signal conditioner to generate a 0-20 mA to simulate one of my inputs.  The MC41 is latching onto a high error and I am puzzled as to why.  I checked the output of the unit and it is in the proper range.  I made a work around using a trim-pot but I want to be sure that I won't have problems when the controller is connected to its real current source.  I noticed that the voltage compliance of the signal conditioner is 12 VDC max whereas my controller is receiving 28 VDC power currently.  Could this be the error?

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Under review

MD4-7 re-boot can't handshake

hongxiang yu 2 years ago in Master modules / MD4 updated by Gustav Widén (System support) 2 years ago 3

Image 3157

Hi 

    The situation happened after flashing software for MD4-7.   I can't link to MD4-7 via CAN or Ethernet now that means i can't flash software again.  The system still appears images but it will enter blue screen state like photo if i sent some commands to MD4 by any CAN channels.  I try to shortly connect address PIN to enter safety mode but seems no influences.   Who has any suggestions for me to solve this issue ?  How to re-flash software MD-7 ?

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Vin reading errors on XA2

Forrest 2 years ago in Expansion modules / XA2, XS2 updated by Gustav Widén (System support) 2 years ago 1

I was forced to change my Pressure Transmitter due to the world-wide supply chain mess.

One that I could get my hands on that looks like it should be able to do the task is the IFM PU1700. I get wild reading from it when read by the XA2, but when I read it with a multi-meter, the voltages are right were I would expect them to be.

Any ideas of what to do? Is there a way to determine what will work and what wont without buying, waiting, and trying? 

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Connector packed with di-electric grease

Gustav Widén (System support) 2 years ago in Master modules / MC4x updated by Pierre Fagrell 2 years ago 1

Got this photo from a colleague who works in after-sales, an MC41 connector packed with di-electric grease.

Image 3154

The Molex MX123 is a sealed connector when properly assembled, so adding di-electric grease does nothing to improve protection against water and dust. Instead, it can only cause problems by getting in the way for the pins and prevent contact. 


I do not know how widespread this problem is. 

Do you guys also have problems with people putting grease inside the connectors? 



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XC-43 Modules Leakage Current/Voltage

Jamy 2 years ago in Expansion modules / XC4x updated by Gustav Widén (System support) 2 years ago 1

The Leakage Current/Voltage from the Digital Outs make it difficult to control LED's and Audible Devices without using a relay/resistor/other.  The Leakage Current/Voltage is also making it difficult if the Digital Outs are read by other electronic devices (off is not off).  How does Parker recommend interfacing with these devices using the new XC-43/series modules? Adding external devices to these circuits is making the XC-43 modules not very convenient.