02-19-2009 10:36 AM
I have a cFP-RLY-425 module wired into a circuit that is powered by a 24V 3A power supply. After running the system a few times, the logic on three of the four relays I was using reversed. Originally, writing a True value to the output line resulted in an open circuit whereas no writing a True value results in a closed circuit. Has anyone seen this before? Did I break it?
The relays are wired in series with a digital I/O board in another part of the building and are being used to send a 4 bit number, if that helps.
02-20-2009 03:16 PM
Do you see this same type of behavior when you are writing to the different relay channels in MAX?
02-20-2009 03:56 PM
02-23-2009 09:42 PM
You shouldn't be able to invert the logic on your RLY-425. If you are seeing reversed logic when you write to the channels in Measurement and Automation Explore, then you should call in to get it replaired. 866-ASK-MYNI