Blind Motor and Controller

Blind Motor and Controller. Max dimensions 13x30x6.5cm. Lifting weight 5 Kg.

## Deliverables

I need a design, specification and pricing for a blind lifting mechanism (motor, gearing and control electronics).

Prototype creation and delivery is an advantage to any bid and should be specified separately.

The deliverables will be a functional deign of the device, parts listing and source suppliers where the parts can be sourced in low volumes.

The device must:

* Max dimensions [url removed, login to view] (LxWxD)

* Be capable of lifting a minimum of 5Kg of weight using a single pull cord (pull up, release to let down).

* The lifting direction will be along the width of the device

* While off the device must mechanically hold the blind in the current position without power

* Use a DC power supply

* Be controlled using digital inputs - this will eventually be controlled by a micro controller

* The external controls will be:

* Activation - Pulse signal (assume initially a push button)

* Up (High level signal) - Motor signal to raise blind

* Down ( High level signal) - Motor direction to lower blind

* Stop (transition signal low to high or high to low) - Motor stop

* Emergency Stop (low) - Motor must stop instantly

* Motor Up Speed control (either using a pot or digital signal) - Controls the speed at which the motor lifts the blind.

* Motor Down Speed control (either using a pot or digital signal) - Controls the speed at which the motor lowers the blind.

If both direction signals are high at the time of the activation pulse then the motor does nothing.

エレクトロニクス エンジニアリング

プロジェクトID: #3707249

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