12/2/2013 7:23 AM | |
Joined: 4/14/2010 Last visit: 8/6/2024 Posts: 525 Rating:
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Hello Ayman Elotaify, now i have connected the load cell butt still SF indication on..??? |
MS |
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12/2/2013 9:35 AM | |
Posts: 206 Rating:
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Hello, if the load cells are wrong connected or brocken the SF is also on. The SF LED can also have a iternal reason. To know the exact reason you can connect with Siwatool and check the error messages. You can also look into the HW-Config of S7, if you are online you can see the diagnostic buffer of the Siwarex U. Mostly with the first setup the problem is the load cell connection. You can measure the tension on the terminal tosee if the connection is right or ifthere is a problem with the load cells. If you have a old Siwarex U order no. 7MH4601* the tensions are as follow. EXC+ to EXC- 10V SEN+ to SEN- 10V(must be >5V) SIG+ to SIG- 0-20mV (If you have set the charateristic value in the calibration parametersto 2mV/V (default), 0-10mV if 1mV/V ist set or 0-40mV if 4mV/V is set) If you have anew Siwarex U order no. 7MH4950* the tensions are as follow: EXC+ to EXC- 6V SEN+ to SEN- 6V(must be >5V) SIG+ to SIG- 0-12mV (If you have set the charateristic value in the calibration parametersto 2mV/V (default), 0-6mV if 1mV/V ist set or 0-24mV if 4mV/V is set) !! The polarity is important!! How ro connect the load cells right you find in the manual http://support.automation.siemens.com/WW/view/en/28392477chapter 4.4.5. Regards ABenno |
Last edited by: ABenno at: 12/2/2013 10:06 AM |
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12/2/2013 9:43 AM | |
Joined: 5/28/2008 Last visit: 9/9/2024 Posts: 4515 Rating:
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Hello, Please connect your PG to Siwarex module and run SIWATOOL SW to findout the reason of SF led.
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Ayman Elotaify |
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12/2/2013 11:56 AM | |
Posts: 206 Rating:
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Hello, the problem is the you didn't calibrate the the Siwarex U yet. If the adjustment digit and the zero digit are 0 the Siwarex U will not output any weight value. You have to set the adjustement weight and calibrate the Siwarex U. How to do this you find in the QuickGuide http://support.automation.siemens.com/WW/view/en/37733600 Regards ABenno |
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