Motor control for chicken house

[SheffSimon]

The law (Supply of Machinery Regulations) says that the first thing you must do is a risk assessment. By "you" I mean your customer and/or you.

That would be before worrying about whether you need to interlock your reversing contactor.

The risks to both operator and maintainer may be negligible, but you need to document them.

Davesparks above has already made a good start.

 

[Automation ATO]

According to the power of the motor. Choose a suitable controller for the current size

 

[Darkwood]

If I can interject and to add weight to others concerns here, it only take a little knowledge to make a functional system but that does not mean it complies to the relative standards.

In the design stage thought must go foremost to safety following a risk assessment, this may include extra measures like redundancy eg fail safe design and complying to the relevant directives etc, it is evident with your replies and posted schematics that you are inexperienced and lack knowledge in this field, the forum will not provide a step by step guide for you either so it is my recommendation that you work alongside someone competent in this field or pass it fully onto them, we would definately advice you do not attempt this project given you are attempting to draft up a very basic functional schematic that would not comply even if it worked in principle.

I am happy to leave the thread open to field some more questions on the matter which may help you realise the depth of adequate design needed and the responsibility that lays solely on your shoulders in undertaking this project.