Hi guys, sorry for the simple explanation but electronics is not something I do on daily basis. However, on a project I'm currently working on it involves a linear actuator which I'm struggling to wire.

The linear actuator needs to run on two separate momentary push button so that one extends the actuator and one retracts it.

I can do the wiring without a relay. But this would lead to a short circuit if both buttons are pressed at the same time.

I appreciate it if someone could help on how to wire this with relays too.

 

I have a circuit for a dual relay flip-flop that uses one P.B. if of any use?
Does the actuator have internal limits that you are using?
Max.

 

Any information is useful since I'm new to this field and only have basic knowledge.
And yes it does have limits

 

Here is also some circuits fig 6 p 8.
Telemecanique wiring diagrams
Flip flop uses 3 relays, single P.B.
External limits are optional.

 

Can this setup with two single-pole change-over contacts meet the requirement?

 

Think I found a solution from another thread abit similar to yours . Am I correct to say this won't short if both buttons are pressed at the same time?

 

Think I found a solution from another thread abit similar to yours . Am I correct to say this won't short if both buttons are pressed at the same time?

A common way of solving it is by using each P.B. with both a N.O. and a N.C. contact to interlock each side.
Or use an extra N.C. contact on the relays.
Max.

 

It's possible to do it without using relays/contactors but you may as well because doing it without will require something more complex.

If you insist on not using relays, I advise that you use industrial/modular push buttons with NO and NC contacts. This way, you can interlock the buttons which will give you the redundancy/functional safety you require. It's also helpful to know if the solenoid/actuator has any electrical limit sensors, if it does then it's worth incorporating those into your interlock.

This isn't ideal but it gives you an idea of the logic and shows how it can be done without using relays or an imbedded system.