Apr 11, 2024 · Programming Multifunction Timer Relay to delay when power is back on. Automation, Robotics & Control: 1: Jan 16, 2025: P: Help Needed: Designing a Long On/Off delay timer for controlling a relay: Digital Design: 13: May 25, 2024: D: Reverse polarity DC motor cyclic timer: Digital Design: 59: Apr 30, 2024: R: Timer OFF Relay help! General ...

Oct 15, 2012 · So is what you need to do is apply power to a timer relay, the contacts of this relay will supply power to operate the timer relay. Example ground pin 14. Tie pin to 4 to pin 13. Tie pin 12 to 12 VDC. Apply your momentary switch to pin 13. The relay closes for period "x" This period will should be of sufficient length to "flush the head".

Jul 17, 2024 · You can avoid the requirement for a FF circuit if you make the timer on-time and off-times equal to the time between reversals. Thus when the timer output is high, the motor will run in one direction until it stops, and then, when the timer output goes low, it will run in the opposite direction until it stops. Many timer modules can do that.

Aug 28, 2023 · Any OFF-delay timer relay you are likely to encounter, will need constant power. In the case of an OFF-delay timer (which is what the macromatic is) there will be a separate input for the signal which is supposed to, upon transition to 0v, begin the timed cycle. But even once this signal goes to 0V the relay itself (the "coil") still must have ...

Dec 7, 2009 · A similar thread was started on 06-05-2009, 08:27 AM. I have the same question and there is not an answer. I am trying to make an automatic control system for a 12v dc motor. The system will open a hinged door in the AM with a 120v timer. The timer will only be energized for 30 minutes each...

Oct 16, 2012 · red is the relay and 12v positive blue is the other side of relay. I added the diode across the relay on the board. And used a new transistor. I am using a standard automotive 40 amp relay which has an 83 ohm coil. So this will wire into the fuel pump relay control circuit already on the boat. The case is from a broken Omron timer relay.

Jul 17, 2024 · At 5:00AM the timer starts Event 1 which activates the relay reversing the motor connections and the motor runs DOWN. After appx 10 minutes the motor stops via the limit switches but the relay stays energized until 6:30AM. At 6:30AM Event 1 ends and the timer deactivates the relay reversing the motor connections allowing the motor to return UP

Apr 19, 2013 · However, you can make a H-Bridge equivilent with two DPST relays. Connect the relays on each side of the motor, and such that in one state, current flows from V+ thru one relay to ground thru the other, then in the other state V+ flows the opposite way, the V+ relay in the first state becomes the ground relay and visa-versa.

Jun 7, 2013 · Reverse polarity DC motor cyclic timer: Digital Design: 59: Apr 30, 2024: S: Reverse polarity switch in combo with Cyclic timer. General Electronics Chat: 4: Apr 8, 2015: A: relay to reverse polarity of 12v current on timer: General Electronics Chat: 20: Dec 7, 2009: L: relay to reverse polarity of 12v current on timer: General Electronics Chat ...

Nov 21, 2015 · Relay disconnection delay with interlock. General Electronics Chat: 19: Mar 1, 2025: Time delay relay issues: General Electronics Chat: 20: Feb 6, 2025: C: Programming Multifunction Timer Relay to delay when power is back on. Automation, Robotics & Control: 1: Jan 16, 2025: P: Elevator Time Delay Relay - Where can I find, can someone make this ...