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Problem Calibrating Siwarex U from Siwatool

Created by: carlos.cordova at: 11/18/2011 8:56 PM (2 Replies)

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11/18/2011 8:56 PM	Rate (0)
carlos.cordova Posts: 1 Rating: (0)	Hello: I'm new to this kind of module and i've been reading all the manuals out there for the siwarex U and the Siwatool, but i cant find an explaination of why i am having this problem. I have a Siemens Load Cell (3.0 mv/v - 1 ton) conected to a siemens junction box (siwarex JB), it is bridged as indicated, SENSE+ with EXC+ and SENSE- with EXC-. Im using a sheilded Siwarex cable (6 threads, three pairs, blue/black, green/gray, red/white). I have all set up, the wiring checked and i can communicate to the Siwarex U via Siwatool. The problem comes when i try to calibrate. First of all, i get a fixed "0" in the Display for the channel (I only have one channel). Then, when i send the parameters (In my case 4 mv/v for the 3 mv/v load cell, the adjustment weight and the units) the zero in the display keeps like that, showing zero. As far as i know, it should variate and give any value there, but it keeps zero. Following the Quick Guide, i give the first command, and Adjust Zero Valid, it allows that command, but when i load my adjustment weight it keeps the zero in the display and it does not allow me to send Command 2, Adjust Weight Valid (It gives me a message that i'm attaching here). All of this with zero in the display, communication via serial port working fine and no error messages in the module. When i do the theoretical adjustment, it shows a value, but it is not accurate since i'm only using the values in the technical data of the Load Cell. The weird thing is that i have variation in millivoltage, but the siwarex U seems to be ignoring in some way this millivoltage. I have tried with two Siwarex U Modules by now and i'm still stuck there. I can't believe this is a hardware problem, so i think i'm doing something wrong, but i cant find what it can be. Any ideas from someone with expirience with this module? Regards! Attachment Command_not_executed(weight_valid).JPG (518 Downloads)
carlos.cordova Posts: 1 Rating: (0)	Last edited by: carlos.cordova at: 11/18/2011 8:57 PM
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11/19/2011 10:08 PM	Rate (0)
Siwarexi Gold Expert Joined: 1/4/2007 Last visit: 11/28/2024 Posts: 1151 Rating: (175)	Hello carlos.cordova, You receive this error message if during an adjustment the current digit value is not increasing. You can control the current digit values into the Siwatool software into the DR31. Best regards Siwarexi

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2/13/2017 3:53 PM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4766 Rating: (122)	New question published by elctro hamad is split to a separate thread with the subject Siwarex u module, The instruction could not be executed due to a fault. Best regards Min_Moderator

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