Im trying to suss out the wiring of a second hand three phase roller shutter door,

i have a couple of up/down/stop control boxes that have a rake of wires coming out.
somewhere in the region of 9 wires + 3 phases + E

At the motor end there is :

3 phase + E flex coming out of the motor.

3 phase + E flex coming from the box with the high low limit switches in.

There is also a sprung loaded contactor, with an arm on, which sits where the manual chain fits on the end of the motor.
this has a two core flex going back to the limit switch housing, it looks to either make or break the 2 cores, but i'm not sure
what it's for or how the lever would be operated


Can anyone give me any clues on how to wire it all together? or point me in the direction of a wiring diagram.

Any help gratefully received .

Al.

sounds very similar to the set up here at work, post a pic for me and i will get my sparky to take a look see

I've never fitted one before but here is my take on how it POSSIBLY (don't blame me if it's wrong) works.
All the ones I've seen are as follows.
They open by pressing the open switch once. this pulls in a contactor manually which then uses one of the phases to hold in the contactor coil by going through the upper limit switch. When the door is at it's up position the circuit is broken the contactor drops out and the motor stops. Going down/closing on all the ones I've seen is only controlled by the operator keeping there hand on the switch when it reaches the bottom the lower limit switch cuts the power to the down switch.
The pair of wires to the chain pull should be to isolate all electrical power to the motor (possibly the contactor coils) so that you can't hang yourself when the motor cuts in while using the chain pull).
Somewhere along the lines there must be a change of (2)phases to allow the motor to turn in a differrent direction

ETA that modern doors now have low voltage control panels as well.

[Edited on 11/6/08 by omega 24 v6]

I'll try to take some pic's tomorrow, omega's
description of operation sounds spot on.
I'm going to try wiring it up on the bench first, to make sure i can get it working.

Al.