Question on 24VDC Honeywell DI card
Question on 24VDC Honeywell DI card
(OP)
All,
Can someone tell me if I have wired up N.O. contact correctly on attached PDF? Does +24vdc land on common terminal or NO terminal? Does it matter on a dry contact? Any links or explanations on this matter would be appreciated.
Thanks in advance,
David
Can someone tell me if I have wired up N.O. contact correctly on attached PDF? Does +24vdc land on common terminal or NO terminal? Does it matter on a dry contact? Any links or explanations on this matter would be appreciated.
Thanks in advance,
David
Thanks in advance,
David





RE: Question on 24VDC Honeywell DI card
However, common and a N.O contacts are associated with a digital output.
With just terminal numbers It is not clear what deice you are working with.
If a DI needs a dry contact, then you do not connect a voltage to either terminal. You connect dry, un-wetted contacts, like relay contacts.
If the binary signal is powered, drive a relay coil with the signal and wire the relay's dry contacts to the DI.
If your terminals are a digital output, an electromechanical relay's contacts, which if labeled Com and NO they most likely are, then voltage is typically wired to the common, load to the NO.
RE: Question on 24VDC Honeywell DI card
The connection between the DI and the alarm is OK. The DI will work wired to either alarm contact terminal.
RE: Question on 24VDC Honeywell DI card
Thanks in advance,
David