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MC43 VREF error Value 0.00 V

Sebastien 6 years ago in Master modules / MC4x updated by Gustav Widén (System support) 3 years ago 7

What can be the cause of this error ?

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Answered

XS2 Dout to +bat?

Forrest 6 years ago in Expansion modules / XA2, XS2 updated by Gustav Widén (System support) 5 years ago 4

I'd like to have IQAN control be paralleled with switch control. This specific application will be a drop axle. I want the IQAN to drop the axle in certain situations, and have a switch that will drop it at any time, even if the control system is powered down,

I believe I have to protect the module from back-feeding, correct? Will just diode protection be enough or do I need to have the Dout controlling a relay that would toggle the input between the switch and a +bat source?

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diodes on coils

Theleo De Bruyn 6 years ago updated by Gustav Widén (System support) 6 years ago 1

Hi there!

we are using prop valves for an application. and we use a cout (current out) to control them. but over the 2 pins of the coil there is a LED with a resistor. and in the instruction of our module (MC43) they say: Do not instal diodes over the coils.

so i was wondering: is a LED a Diode in this application? Do i need to remove the LED?


Thanks for helping!

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IQAN-DG

Klaus Gottwald 6 years ago updated by Gustav Widén (System support) 6 years ago 0

I have an old faulty IQAN-DG here for repair.

Can someone please send me a diagram of the rear CI, CAN1 and CAN2 connector pinouts.

Thank you

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Answered

MC43 Error Code

Greg Landon 6 years ago in Master modules / MC4x updated by ryanS 1 year ago 3

I have a MC43 with the following blink code 4 red, 2 yellow, 1 yellow, 1 yellow, 1 yellow. What do the 3 yellow blinks at the end mean? This happens intermittently when the module first gets power.

Answer

If it's occurring on start up, the likely causes are battery voltage exists on an output before the module powers up or a slow rise in power supply voltage.  Possible causes are covered in appendix B of the instruction book.

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PWM Input with frequency >500Hz

Curtis Knischewsky 6 years ago in Master modules / MC4x updated by Tim Reen 6 years ago 4

I am considering using an MC41 with PWM signals as inputs. These signals come from joystick thumbwheels on excavators made by a large multi-national OEM. My problem is the spec on the frequency of the PWM signal from the thumbwheel is 500Hz +/- 50Hz. I see the max allowable frequency from the MC4x catalog is 500Hz. Wondering if the MC41 will work with 550Hz PWM frequency input.

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MC41FS Digital out HS disabling under current shut OFF

Antero Salojarvi 6 years ago in Master modules / MC4x updated by Gustav Widén (System support) 6 years ago 3

How this can be done? Did not find from channel properties.

Answer

You find the property on the pin in the module view.

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MC41 restart after low supply voltage event

Antero Salojarvi 6 years ago in Master modules / MC4x updated by Gustav Widén (System support) 6 years ago 3

I am using MC41FS in non safety application. During cranking voltage drops, but not low enough to reset module.

Module hangs up and stays that way until power recycle. Can I restart application back up with SW?

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Answered

MC31 Error 1:20 ??

David Dufour 6 years ago in Master modules / MC3 updated by Gustav Widén (System support) 6 years ago 9

Anyone have more information about the error 1:20 on a MC31 master module ?

I didn't find anything related to this error.

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Faulty/broken MD4

L P C 6 years ago in Master modules / MD4 updated by Aleksey M. 4 years ago 6

We have had multiple MD4 units (7 and 10 inches) no longer powering up.

Do you have any idea what could cause that?  We're using fuses to protect the units, but sometimes they still seem to fail on normal operation.