The relay chatters when I trigger the door strike
Article ID: 818 | Rating: Unrated | Last Updated: Tue, Dec 18, 2012 at 1:36 PM
It is not a good idea to use a switching - type power supply to power a door strike or maglock.
Switch mode power supplies like to run on continuous steady drain non-inductive loads. If they go from very low or zero load to a heavy inductive load they sense this as an over current (short circuit) condition and shut down. This may cause the relay to "chatter.”
If you must run a switching power supply with a door-strike or maglock, you will need to install an anti-kickback diode (1N4007) across the DC door strike solenoid, or across the maglock terminals, with the cathode (banded end) connected to the +12 volt side of the supply.
There are no attachments for this article.
There are no comments for this article. Be the first to post a comment.
Find Transmitter Code - AP-4, AP-5
Viewed 4621 times since Wed, Mar 31, 2010
How do I program my DTKP keypad?
Viewed 3933 times since Mon, Mar 29, 2010
What products will Multicode work with?
Viewed 3840 times since Mon, Mar 29, 2010
Open Collector Output
Viewed 3283 times since Fri, Jul 8, 2011
Will Allstar work with MVP?
Viewed 2721 times since Mon, Mar 29, 2010
Program a MCS420001 Keypad
Viewed 3985 times since Mon, May 16, 2011
Remotes have poor range
Viewed 4697 times since Tue, Feb 26, 2013