Lengthen time that relay stays closed
Printed From: the12volt.comForum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=142909
Printed Date: May 03, 2025 at 1:20 PM
Topic: Lengthen time that relay stays closed
Posted By: kmpdx
Subject: Lengthen time that relay stays closed
Date Posted: April 25, 2017 at 5:12 PM
Hey guys,
I have a keyless entry that I am trying to run an actuator directly. The relay's impulse is only 0.5 seconds which works to pull the actuator to lock but not enough to push it and unlock.The device does not have a way to set the time besides that it is 0.5 seconds and then if I cut a loop of wire 4 seconds. There are some resistors in parallel and I wondered if they control the impulse length? I am pretty handy with soldering but have no idea how to calculate the impulse length via the resistors or if that is even a way to modify the length of time
I already ordered a separate relay that has an adjustable close time but wondered if modifying the current board is possible to get the desired impulse length.
Thanks!
kmpdx
I have a keyless entry that I am trying to run an actuator directly. The relay's impulse is only 0.5 seconds which works to pull the actuator to lock but not enough to push it and unlock.The device does not have a way to set the time besides that it is 0.5 seconds and then if I cut a loop of wire 4 seconds. There are some resistors in parallel and I wondered if they control the impulse length? I am pretty handy with soldering but have no idea how to calculate the impulse length via the resistors or if that is even a way to modify the length of time
I already ordered a separate relay that has an adjustable close time but wondered if modifying the current board is possible to get the desired impulse length.
Thanks!
kmpdx
Replies:
Posted By: the12volt
Date Posted: May 08, 2017 at 8:50 AM
Without being able to test the module myself, I cannot tell you which of those to modify, if any, to make it work as you described. The relay you ordered sounds like a good/safe way to go.
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