When i click the A point ON switch button i want the 12v actuator to go from the point A till it touch point B OFF switch and to full stop and the A point ON button switch to reset to OFF, how to do that?
I will appreciate help with circuit explanations.
Thanks.

 

Your question is very difficult to follow. Please post photos of the mechanism, a schematic of the wiring, or *anything* to help us understand what you are talking about. What does this do? What is it for?

ak

 

Your question is very difficult to follow. Please post photos of the mechanism, a schematic of the wiring, or *anything* to help us understand what you are talking about. What does this do? What is it for?

ak

I want to make lift cabinet, when I click the power switch ON the cabinet is lifted and when the cabinet is at desired point B, I want the power to reset the actual Point A switch ON to OFF.
I think i need latching relay?

 

So, you have a Linear Actuator that extends from Point A to Point B ( and I assume - can retract from Point B back to Point A ? )
When you press the "Start" Button the Actuator will turn ON and travel from Point A until it hits a Limit Switch, where it STOPS at Point B ?

How does the Actuator retract from Point B, back to Point A?
a) Do you press the same "Start" Button or
b) Is there a "Extend / Forward" button ( Point A to B ) and a "Retract / Reverse" button ( Point B to A ) ?

 

You are correct 100%.
I am using DPDT momentary switch at start Point A.

 

Is it a 12 Volt DC or 120 Volt AC motor circuit ?

 

Is it a 12 Volt DC or 120 Volt AC motor circuit ?

12v DC

 

Is it a 12 Volt DC or 120 Volt AC motor circuit ?

Can i just use this latching relay with reset fuction? See link on Amazon
ELECTRONICS-SALON Panel Mount Momentary-Switch/Pulse-Signal Control Latching DPDT Relay Module,12V https://www.amazon.co.uk/dp/B015MSYQ8Q/ref=cm_sw_r_cp_api_i_.ORJCbRAJATDH

 

Can i just use this latching relay with reset fuction? See link on Amazon
ELECTRONICS-SALON Panel Mount Momentary-Switch/Pulse-Signal Control Latching DPDT Relay Module,12V https://www.amazon.co.uk/dp/B015MSYQ8Q/ref=cm_sw_r_cp_api_i_.ORJCbRAJATDH

Possibly ...
NOTE: The Output Contacts on that Relay are rated for a 8 Amps AC - not DC rating.
How many DC Amps does your DC Motor require?
See the 4th thumbnail down on the Amazon webpage for a typical Forward / Reverse connection ( input side ).
The DPDT Relay Contacts ( output side ) must be wired in SERIES with your Limit Switched to stop the motion, as required.

 

NOTE: The Output Contacts on that Relay are rated for a 8 Amps AC - not DC rating.

Omron rates it at 8 amps DC at 30 volts.
SG

 

Possibly ...
NOTE: The Output Contacts on that Relay are rated for a 8 Amps AC - not DC rating.
How many DC Amps does your DC Motor require?
See the 4th thumbnail down on the Amazon webpage for a typical Forward / Reverse connection ( input side ).
The DPDT Relay Contacts ( output side ) must be wired in SERIES with your Limit Switched to stop the motion, as required.

Have no idea, i just bought it at amazon, here is the link
Walfront DC 12V Linear Actuator 1500N Max Lift 500mm Stroke Electric Motor for Electroic, Medical, Auto Use https://www.amazon.co.uk/dp/B076QDC545/ref=cm_sw_r_cp_api_i_0JTJCbG4PVXJ4

 

Have no idea, i just bought it at amazon, here is the link
Walfront DC 12V Linear Actuator 1500N Max Lift 500mm Stroke Electric Motor for Electroic, Medical, Auto Use https://www.amazon.co.uk/dp/B076QDC545/ref=cm_sw_r_cp_api_i_0JTJCbG4PVXJ4

I cannot find any Motor data ( amps ) for that Linear Actuator.
But I do not think, that size motor can draw more than 4 or 5 amps.
The Relay Contacts are rated at 8 Amps DC ( per message #10 ), so that looks OK, so far.
Make sure your Limit Switches are rated 8 amps 12 Volt DC.
I believe, the Linear Actuator has built-in Limit Switches that activate at Full Extend and Full Retract.

 

I cannot find any Motor data ( amps ) for that Linear Actuator.
But I do not think, that size motor can draw more than 4 or 5 amps.
The Relay Contacts are rated at 8 Amps DC ( per message #10 ), so that looks OK, so far.
Make sure your Limit Switches are rated 8 amps 12 Volt DC.
I believe, the Linear Actuator has built-in Limit Switches that activate at Full Extend and Full Retract.

Thanks

 

I cannot find any Motor data ( amps ) for that Linear Actuator.
But I do not think, that size motor can draw more than 4 or 5 amps.
The Relay Contacts are rated at 8 Amps DC ( per message #10 ), so that looks OK, so far.
Make sure your Limit Switches are rated 8 amps 12 Volt DC.
I believe, the Linear Actuator has built-in Limit Switches that activate at Full Extend and Full Retract.

How i can setup it to retract back automatically when full extend is done?

 

How i can setup it to retract back automatically when full extend is done?

You would need an external limit switch or circuit to reverse the polarity of the motor leads.
SG

 

Thank you very much

 

Thank you very much

A thought ... Wire the N.O Contacts of your "Fully Extended / Auto-Reverse" Limit Switch in parallel with your Momentary Reverse Push Button
This will cause the motor to auto-reverse when fully extended.

Design so that the Limit Switch cannot get "crushed" due to forward momentum before reversing.
Make sure your external "Fully Extended / Auto - Reverse" Switch activates before the internal limit switch opens.

 

A thought ... Wire the N.O Contacts of your "Fully Extended / Auto-Reverse" Limit Switch in parallel with your Momentary Reverse Push Button
This will cause the motor to auto-reverse when fully extended.

Design so that the Limit Switch cannot get "crushed" due to forward momentum before reversing.
Make sure your external "Fully Extended / Auto - Reverse" Switch activates before the internal limit switch opens.

Can you please draw circuit so i can understand better.
Thanks

 

I am using DPDT momentary switch at start Point A.

Is this a momentary toggle switch with the center position OFF?
If not please explain exactly what type switch or switches you have.
SG

 

Is this a momentary toggle switch with the center position OFF?
If not please explain exactly what type switch or switches you have.
SG

Yes, dpdt switch with the centre off.