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Topic starter
09/02/2012 8:48 am
I have an Epoch 1 system 5 car group. Car #1 does not respond to the dispatch panel. The indicator lamp on the dispatch panel is not lit for car #1 but is lit for all the other cars. The car #1 controller shows that it is in service, the in service light is on and the available light is on. On the Profile menu, insrv shows no issues and matches the other cars in the group. All I/0 signals match the other cars in the group and appear to be normal. What am I missing here? Any thoughts?
Note: This car has been down for several weeks for motor and generator repairs. Nothing related to dispatching issues.
09/02/2012 9:32 am
Check the TSLT signal coming from the cartop/door operator.
10/02/2012 8:08 pm
Turn the controller off and re-seat the ribbon connector that comes off the CPU comm board. This is the small piggyback board that is mounted to the CPU card in the B6 panel. I believe these are the same comm boards used with Swift 5000. I just had this issue on another job.
10/02/2012 11:31 pm
Same board as the 5000 but you have to wire wrap it differently
10/02/2012 11:40 pm
http://vmebusdirect.com/product.php?id=898
8825's was a SBC (Single Board Computer) you could order directly from Intel. You programmed it to interact with I/O. Used on several systems and not just elevators.
11/02/2012 6:25 am
Yes you are right. I use to encounter the SBC8825 on Millar Industries equipment ie CVT which was a earlier rendition of Swift.
8088 uP at 25Mhz.
8088 uP at 25Mhz.
Topic starter
11/02/2012 9:49 am
Finally got it, it was a bad piggy back comm board and a bad comm chip underneath the comm board. I learned something in this troubleshooting process. It turns out that the CPU board installed in the last car in the group is different then the rest of the boards. All the boards are G01 and the end car is a G02. The GO2 doesn't work well in place of the GO1 board. The problem snuck by me the first time for this reason. I guess I need to pay more attention when swap-tronicing.
Thanks for all the good suggestions and help!
Thanks for all the good suggestions and help!
11/02/2012 9:53 am
Yep You're right.. The G02 is for termination of the daisy chain communication. Wait till you get a 6 car group, where guys have been monkeying around and knocked out all the piggy back comm boards...SIGH...
The more I deal with field problems, the more self inflicted wounds I see..
Last edited by Broke_Sheave; 02/11/12 01:56 AM.
12/02/2012 11:54 am
I will tell you all one thing i know for sure, there are some smart guys on this forum. :}
