active Posted March 1, 2011 Report Share Posted March 1, 2011 Hi all help I currently have a V280 with Ex-1A adapter IO-AI4-AO2 IO-DI16 IO-DI16 IO-R16 Been running fine for years now is coming up with V5.4(B09) HW A Expansion Error 1 0x0000 2-0 3 0x0008 4-0x0000 5 0x00000000 can anyone help with which expansion card is causing the problem turn off power and starts up for up to an hour then faults Quote Link to comment Share on other sites More sharing options...
Emil Posted March 1, 2011 Report Share Posted March 1, 2011 Usually such error comes from electromagnetic noise in the system. There are two possible ways to fix the problem: 1. review and improve your system to increase the noise immunity. In our web site www.unitronics.com > Support page > Technical Library > Support documents (at te bottom of the page) you can find a doc "Sysytem design guidelines". If you will follow the rules and advices there, thsi must fix the problem. 2. Replace EX-A1 with the newely developped EX-A2X. This module has isolated port, which enable cable length up to 20 meters. As "side effect" the new module is much better protected against noise. Quote Link to comment Share on other sites More sharing options...
MVP 2014 Simon Posted March 2, 2011 MVP 2014 Report Share Posted March 2, 2011 Hmm, since the system has been installed for several years, and only just started to have problems, can you check if any equipment in the vicinity was added or upgraded recently - such as motor drives, contactors, etc. Also check for modified mains wiring. I guess we have assumed something has changed in the PLC hardware, but maybe something has changed in the environment? Quote Link to comment Share on other sites More sharing options...
giovanny.corrales Posted August 29, 2011 Report Share Posted August 29, 2011 Hi, I have the same problem with an OPLC V120, an Expansion Adapter EX-A2X and a IO-DI8-TO8. First, I had an Expansion Adapter EX-A1: the OPLC did'nt show the error message but the led RUN in the IO module was flashing... Then, I put the EX-A2X: Early, the communication is established but in a few minutes the OPLC show the error message and the comunnication is broken... I did test without the IO connections but the problem persists. Thank you for your help... Quote Link to comment Share on other sites More sharing options...
Jeff K Posted September 16, 2011 Report Share Posted September 16, 2011 We just found out the same error. We use the IO-LC1 and the EX-A1, and got the EX-A2X as a DIRECT replacement, it is not. We have to use the directional cable with the new EX-A2X module. We have machines out in the field with the EX-A1 in them. Is there an adapter for the cable to make the EX-A2x work without rewiring the machines if there is a repair? IS there a download of the different cable configurations between the EX-A1 and the EX-A2X? Quote Link to comment Share on other sites More sharing options...
Jas Posted September 16, 2011 Report Share Posted September 16, 2011 The main advantage of the EX-A2X is the much improved isolation. The "upgraded" EXL-CABxxx cable is required in conjunction with the module. Quote Link to comment Share on other sites More sharing options...
Jeff K Posted September 16, 2011 Report Share Posted September 16, 2011 Thanks, Are the cable configurations or adapters to fit the new module without rewiring the machines out in the field? Quote Link to comment Share on other sites More sharing options...
Jas Posted September 16, 2011 Report Share Posted September 16, 2011 Unfortunately no, a crucial part of the improved system is the new cable. Quote Link to comment Share on other sites More sharing options...
Jeff K Posted September 16, 2011 Report Share Posted September 16, 2011 Do you have pinout drawings of the 2 cables? Quote Link to comment Share on other sites More sharing options...
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