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MD4-7 Display stuck into restart mode

Vishal Pipaliya 2 years ago in Master modules / MD4 updated by Gustav Widén (System support) 2 years ago 2

MD4-7 is stuck into this mode even when power cycling display. Anyone had si

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milar issue? Any suggestion would help.

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Answered

MC4x parallel HS output usage

Chris Litwin 2 years ago in Master modules / MC4x updated by Gustav Widén (System support) 2 years ago 5

When an MC4x DOUT HS is wired in parallel, are you able to drive a single output as long as the over current limit is not met? What I driving at is activating both outputs initially, and deactivating one later.

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MC4x DOUT HS or PWM HS Over current threshold

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

What is the current level that triggers over current diagnostics when HS outputs are used in parallel?

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MC43FS VRef+ no output

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

Have any idea what is problem cause VRef+ (C1:7) no 5V output.  I can comfirm the PIN and controller are ok after i made test on bench.

What is problem cause 5V PIN stop output. possible CAN wrong or Any PINs short to ground ? No error informs why VRef do not output now

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4-20mA convert to V input on MC43 using 250ohm resistor

Kevin 2 years ago in Master modules / MC4x updated by anonymous 2 years ago 2

When using a high precision 250 or 120ohm resistor to allow IQAN to measure the signal from a current loop, do I need to connect Vref -VE for ground reference?

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Answered

Any technical reason for using both +BATT pins on MC43?

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

We have specified an MC43 over the lesser modules in the range because of the additional inputs we need to monitor in the controller. We are not using any outputs on the module therefore current draw is minimal.

Is the only reason there is a second power supply pin (+BATT) to drive the additional outputs that can be configured on the MC43? Because we are not using any outputs (therefore current draw is hardly anything) can we connect only one of the +BATT pin to the supply, is there any technical reason why this cannot be done? I don't have a module to hand but I assume they are internally connected? is there a current limit on the module outputs if we only connect one pin?

I have had a look through the manual, the diagram on page 58 suggests we need to connect both pins on MC43 module only.

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Used MDL2 modules

Pawel Pekala 2 years ago in Master modules updated by Tim 1 week ago 12

I have 4 used MDL2 modules (one with sim port, three without). If you are looking online and can't find them, let me know.


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Reading value of a PWM valve with a PWMIN

Andy Pauly 3 years ago in Master modules / MC4x updated by Gustav Widén (System support) 3 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 3 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 3 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?