So here are the two pics I have. Relays next to power supply. The contractors for lift and lower are on bottom left. For the fwd/rev functions of the conveyor, I have to use a very small SEW drive. Ive actually never wired up a drive from scratch, but I wouldn't imagine I'd need a lot of relays for the forward and reverse motion since I have the drive.Show the contactors also any O/L protection. Sizing etc.
If the conveyor involves the general public or could cause danger to personnel, you may need a phase rotation detector. As used in elevators.
What initiates the conveyor?
Hi All
Could anyone assist me with something? I am trying to wire up a motor that controls lifting/lowering of a conveyor with two NC limit switches using relays. I have pictures of the relays I'm using if needed.
For overloads, I'm pretty positive that I've got 15A breakers installed.So here are the two pics I have. Relays next to power supply. The contractors for lift and lower are on bottom left. For the fwd/rev functions of the conveyor, I have to use a very small SEW drive. Ive actually never wired up a drive from scratch, but I wouldn't imagine I'd need a lot of relays for the forward and reverse motion since I have the drive.
They are Contactors, you are the Contractor!. The contractors for lift and lower are on bottom left. For the fwd/rev functions of the conveyor, I have to use a very small SEW drive. Ive actually never wired up a drive from scratch, but I wouldn't imagine I'd need a lot of relays for the forward and reverse motion since I have the drive.
I've been wiring it up so far. But I have little experience with installations.They are Contactors, you are the Contractor!
So who has wired it up so far? and what experience do you have with Industrial installations?
I am trying to get an idea of the full 'picture'?
To come up with a DWG, the nature of the operation is needed, so far it is a little vague!
I apologize. I should've been more thorough with my explanation.If its a vfd doesn't it have forward and reversing built in? The reversing contactors wouldn't be needed then. So like @MaxHeadRoom said we kind of need more information.
Re-reading your second post it looks like you are looking at replacing the reversing contactors with the vfd. And you're right if the drive has forward and reversing you do not need contactors for the same. From the guess of the situation you'd take the input to the vfd, the output to the motor, and remove the reversing contactors. Next would figure out the configuration of the drive and how to wire up those NC limits to the drive to let it know when to stop and how to start motion. Probably a toggle of some kind.
Again, a fuller picture of the situation is going to help. Even the old schematics would help with that.
I've been wiring it up so far. But I have little experience with installations.They are Contactors, you are the Contractor!
So who has wired it up so far? and what experience do you have with Industrial installations?
I am trying to get an idea of the full 'picture'?
To come up with a DWG, the nature of the operation is needed, so far it is a little vague!
I'll be using NO pushbuttons for up and down.you going to be using a selector switch for up and down or will it be a momentary that cycles between the two states?
It is rather risky if you are new to industrial installations, you will be required to conform to local code .I've been wiring it up so far. But I have little experience with installations.
It is to be used as an exit conveyor for parts coming off a stamping press.
In order to come up with a required design.Could anyone assist me with something? I am trying to wire up a motor that controls lifting/lowering of a conveyor with two NC limit switches using relays. I have pictures of the relays I'm using if needed.