I am trying to read a NTC thermistor with a resistive output ranging from 810 - 76.9 ohms on the MC43. 

In the past we have used a voltage divider circuit to read the sensor value on a VIN channel, but if the MC43 could introduce a bias current to the thermistor then the output voltage could read without the need for a second resistor in the mix. 

I did not seeing any mention of this in the MC43 manual but was wondering if anyone has faced this challenge before. 

Thank you. 

Hello,

We are currently working with a MC43, and I had a question regarding the use of PWM out as a control device. I found this post, since it was 4 years old thought I would ask again. We are trying to control a water valve position with one of the PWM out on the MC43, but not getting the expected results. 

The datasheet specifies a leakage current of 2mA. What do you recommend to clean this up and bring it down close to 0?

I am relatively new to the whole IQAN infrastructure and I am wondering why is there such a high leakage current? Is there any benefit to it?

Thanks in advance

Is there any reliability data for these modules (non failsafe versions)? We are using modules for control system functions and to see if they comply with basic performance levels (b). Is there any documents that are available showing MTTF of these modules that can assist with calculations?

I see the manual includes this:

IQAN-MC4x performance only runs a sub-set of the MC4xFS functions for internal diagnostics. Because of reduced diagnostics, DC and thus SFF and PFHd is not available for these modules.

But we were able to get reliability data for XC2X range at one stage even though this was not a safety controller, is this likely to be possible with the MC4X?

Tjena.

Är det möjligt att koppla en G11 med Iqansynk mot en MC41, har en MC41 som "standalone" i en maskin och vill redigera vissa parametrar för att se resultatet "live".
Om ja: vart ska den in? (stift)

Om nej: synd...

Hi,

I'm relatively new to the IQAN system. I'm currently using the MC43. Is it possible to have high side digital signalling outputs? I'm interested in controlling some industrial devices that accept 24V digital inputs. From what I understand, most of the digital outputs have some sort of fault detection on loads lower than a few hundred milliamps. The only way around it I found is to use PWM outputs, which are limited and also seem like a bit of a hack.

Would be great to know if this is possible.

Thanks! 

Not sure if HS PWM output circuit support the open load detection, we used pin 45 on MC41, any current measurement capability on this port. If yes, how that can be monitored from the IQan software.

Thanks 

I am working on the control system using MC43. Please let me know urgently whether I can use MC43 ‘PWM out HS+LS’ or ‘PWM out HS’ to control Danfoss PVES or PWEM proportional solenoids 

From MC43 instruction book:

From Danfoss solenoid specifications

Kind regards,
Richard Kowalczyk MIEAust CPEng RPEQ
RKad Engineering
32 Kingussie Ave
Castle Hill NSW 2154
Australia
☎: +61 2 98940750

📲 :+61 431 639 295

E: richard.kowalczyk@rkad.com.au
W: www.rkad.com.au 

I need to know what are the possibilities to connect MC41 controller with PC to flash program into controller and for diagnostics.

The MC43 documentation states to use a single 40A external fuse to protect the module. Is it sufficient to run two single 20A fuses, one on each +BAT connection?

Hi,

We have installed a speed sensor (PNP, 15000Hz) onto a MC42 frequency input (pin C1:28, PD).

The problem we have is that the raw value only goes up to about 2800Hz then zero's out with no further reading and we need to get a reading up to at least 5500Hz.

I have configured the input settings to: Max HZ -> 15000 and also the Scaled Maxed-> 15000 to mach the sensor's capabilities and then use the raw reading to scale a RPM value.

We tried adjusting the sensor closer to the ring gear, but no improvement.  

So I did a test to see if it might be the sensor that is faulty by connecting the sensor to a different type/brand of controller. It immediately worked and gave the correct reading constantly.

The question is now... What am I doing wrong on the IQAN side?