We have an MC41 connected to a PLC via the CANbus.  We push 16 RPDO blocks from the PLC to the MC41. We are on our 10th unit and suddenly on unit #10 we are not getting any values from RPDO 11, and it is greyed out when we look at it with IQANdesign.  Help?

Hi,

I need some help.

I have trouble using CIN sensors.

I have no problem with any others sensor types, but with almost all current sensors (4-20mA), I get an error with the signal (24mA) after some use.

But not all the time.

For exemple, here I have some undesired spikes while measuring.

Spikes are very short so I can't read +24mA in IQAN but I think if there was longer, I would have 24mA, so more than my scaled value at 20mA

For this exemple, the value come back to a good value quickly, but sometime it stays in error ~= 24mA

Have you ever had similar problem ?

Do you have some advises ?

I can't use Vref+5V because my sensors can be supplyed between 8-32Vdc.

The sensors used are made with 3 wires : +24V / 0V / Signal

So the wire 0V is connected to the 0V of the battery, but on every machine, the 0V of the battery is conencted to the chassis of the machine.

Iin the manual it is recommanded to do not connect the 0V to the chassis. It's not possible on mobile machine.

So we tried to connect the 0V to the VREF- but it's doesn't work obviously.

Is there a way to have a VREF for sensors that supply about 10Vdc ?

Hope someone has some experiences that can help us to understand this problem with current sensors !

Got the R4:2 1:1:3 I/O startup test failed error on a MC42FS module.

Even when I only put power (24v external power supply) and a address tag on it.
Tried to put an empty program on the controller. The controller is installing the program but when it restarts it keeps coming back with the same error.

Is there anything I can try to fix this?

Would like to use the HS+LS configuration to control the HV contactors in an Hybrid configuration.  I am reading note about using Diode to protect against EMF.  But I cannot find specification on acceptable EMF level?  Our contactors have built-in EMF clamping diode rated at 150V?
Also how does the open circuit detection in an off state works?  injecting a current i am assuming. How much?  Just want to avoid issue with Dropoff voltage for the coil.  

Hi There, 

Hope all is well,

Is there any possibility to drive Proportional 24v 33Hz Pulsar valves with the PWM outputs from a MC43 ? Reading the manual it states that this will not work from MC43,but reaching out to see if it is possible.

ATM I am using the proportional flow from the pump and making the Pulsar more like an ON/OFF, This is working currently but would like to use the Pulsar proportionally. 

Thank you 

What is the suggested solution for driving NG6 valves with standard 30W solenoids at 12V system voltage with MC4x/XC4x modules? 

We use the HS+LS digital outputs for driving Parker D1VW valves with "K" code solenoids in a 12V system. As stated in the instrucion book, max load per output is 2.5A, but the measured current is 2.7A (as in the D1VW catalogue). The measured solenoid resistance is 5 Ohm, but it should be within 7-14 Ohm (MC4x/XC4x instrucion book). 

30W solenoids are standard at other valve suppliers too, so changing the valve isn't an option. Change the system voltage to 24V also isn't possible for this project.

Hi,

I have an MC41 module and I want to pick up the signal from a speed sensor M18-4VPFF200-Q8.

Thus I calculated my Max Frequency (Hz) = (Max RPM×Pulses per Revolution)/60 = (200*1)/60 = 3.33 ~ 3 Hz

Do you have any input on whether the issue might be software or hardware related?

Thanks!

We have a requirement to have multiple XC43 modules remotely to the master MC43FS module. Its likely they will all be powered from separate power supplies and they wont supply the same 0V for batt -ve.

Is this likely to be a problem in terms of interference etc?

IQAN Tech Support,

We are looking for help with troubleshooting our "IQAN Controller, Master Unit, IQAN - MC43" Safety Controller. It is getting inputs from two Temposonics tank-level sensors in our electronic water-level system, models GB Series & RF 5^th Gen input sensors. The IQAN controller is PN 20085113.

We are receiving a potential difference (voltage output) of 0.39 V from Output pin to System Ground when measured with a multimeter; however the programming software indicates that the output should be 0 V. Our known inputs and outputs are below:

• The tank level sensors are bottomed-out, as there is no water in the tank.
• With no water in the tank, the IQAN is programmed to output 0% Du Cycle, yielding 0.0 gallons on the display - but there is a .39V measured.
• The lowest water level reading that the sensors could output is 120 gallons, but should read 0.0 gallons below that.
• We are needing help troubleshooting and establishing / calibrating our 0.0 baseline

Questions: 

1. Why is a voltage being read at the output, when the program is indicating that it should be zero? 

2. Can we create a code or loop in the program to circumvent the small output voltage?

For a long time we have been running into the limitation that the Program memory is too small for us. Is there also a view with the new MC4x to increase this in the future to 3Mb for example, this would help us enormously in adding functions that we are now forced to leave on the shelf.