Comfort Automation/ Security System Forums > Support > Problems & Troubleshooting > Outputs > Issue on O/Ps On LEM Board Connected to CPU |
Comfort Automation/ Security System Forums > Support > Problems & Troubleshooting > Outputs > Issue on O/Ps On LEM Board Connected to CPU |
| Moderated by: slychiu | ||
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EOTB Member
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Hi, I have set up the main CPU panel on a test bench before installation. I have only connected:
Response 240: 78, 9, 13, 78, 9, 255 If Input Zone9 = 0 Then Toggle Output OP9 End If Response 241 78, 9, 12, 78, 9, 255 If Input Zone9 <> 0 Then Toggle Output OP9 End If I have found that in this configuration the Output fairly consistantly does not switch the relay on the TWS board correctly (the relay sounds as though it is switching and the lights flicker). On further investigation using a multimeter across the O/P9 terminals, I found that in the cases where it doesn't work correctly, it briefly sends 12v down the line and then returns to 0. I have done the following to test the issue, but nothing worked:
Just after writing the above, I have just reprogrammed the responses to toggle both OP1 and OP9. I have connected just LEDs into the connectors and tested. They both switch on and stay on together (with OP9 sometimes switch on slightly later which is probably the programming sequence). If I connect the TWS module to OP9 with the LED, it seems to 'trip' the relay and the LED on OP9 flickers. The LED connected to OP1 stays on without any problems. If I connect the TWS to OP1, the TWS relay works fine and the LED on OP1 stays on, but the LED on OP9 flickers. I have tested this without the LED in OP1 also and the same thing occurs. So basically, in short if I have the TWS module connected to either the main CPU or the LEM, the output on the LEM fails to switch regularly Has anyone else seen this issue? Thanks Adam. Last edited on Monday Aug 25th, 2008 02:26 pm by EOTB |
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EOTB Member
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Ok, I have also just done the following I have set up another response to toggle OP11 on and off and assigned Zone 2 which is connected to the PIR. There is an LED connected to OP11. If I toggle the PIR so the LED turns on and then start toggling mag sensor on Z1 which lights up OP1 and OP9, as soon as it fails, it also switches off the LED on the OP11 As soon as I re-toggle the PIR it switches on again. This is all rather dodgy! Please help! Thanks Adam. |
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slychiu Administrator 
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This problem is due to interference on the LEM cable from the relay switching off and on Some questions on your configuration' Are you using Comfort I or II? Are you using the short LEM cable with the LEM mounted on top of the Comfort PCB (Comfort II only) Try to move the TWS and wires further from the LEM ribbon cable If this does not work we have recently made some changes to the OP01 Output plug in board which reduces this problem. This has been reported by other users, so we believe we have a solution. Let me have your contact details so we can send a new OP01 plug in board |
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EOTB Member
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Hi Thanks for the fast reply! I have a Comfort II. The LEM board I am using is mount on top of the main CPU board with what I assume is the short cable (it is only ~2 inches long). The TWS is currently mounted about 10 inches away from the LEM cable itself. There are no cables running anywhere near the cable and it still does the same thing. I only recieved this system a couple of weeks ago from a UK supplier. How long ago was the new boards being shipped? If it means anything, the model numbers on the board are: PC01-056B OP1. On the chip-side of the board it has the number 4606. If a new OP board is required, I will require three as I have tested all three and all do the same thing. Will you require a copy of the receipt? Thanks Adam. |
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slychiu Administrator
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The OP1s were modified a few weeks ago, so it would not have time to go through the supply chain. You dont have to produce a receipt. We will send 3 OP1s. Let me know if they fix the problem |
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mikegriff Member
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Hi Chiu Having just installed my 2 year old Comfort II I now have it all up and running But have beeen have a problem with output 09 that used to work all the time on my Comfort I system Having read this thread I believe I also might have some dodgy Op plugin boards Mike |
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slychiu Administrator
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The OP1 may not be faulty, but it needs to match with the correct firmware Can you let us know the firmware versions on your Comfort and Slave. Probably best to send a private message |
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