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HOW
RADIO REMOTE
COMPARES WITH OTHER CONTROL METHODS

Radio remote control for cranes and other equipment eliminates the need to rely on crane (or locomotive, etc.) cab control and pendant control as the only means of operation.
The addition of radio remote controls allows you to convert from a two-person operation to a single-person operation, since you no longer need that extra person providing hand signals at ground level. (Occasionally you convert from a three-person to a two-person operation but the effect is the same in terms of saving one person’s labor.)
Load positioning and damage control are improved too, because a radio operator can better judge crane load or rail car clearance. Placing the operator on the floor avoids the health hazards of high humidity, vapors, smoke, radiation, high voltage, etc.
With radio control, one person can control several cranes or other material handling vehicles, one at a time, from a single transmitter. Maintenance is simple and can be handled by your in-plant personnel.
A pendant control forces the operator to walk with the load, which often translates as running an obstacle course. As well, the swinging pendant is clumsy and a hazard in its own right. Radio control eliminates these problems.
Radio controls by Berlet have available options to provide adjustable controlled range (typically 75 to 100 feet), with the crane automatically stopping or not being able to start when the operator can no longer safely see the load. In the case of signal failure, all motion comes to a safe stop. Magnets and vacuum lifts, for example, retain their last commanded state with the option of latching circuits.
Our portable lightweight transmitters may be worn in a belt; even smaller ones can be held in your hand. Their controls replicate crane cab or pendant controls.
To move a crane, for example, the operator activates a lever or button to send a radio signal which is picked up by the receiving antenna mounted on the crane. The antenna passes the signal to the receiver unit, also on the crane. This unit transforms the signal into electrical energy and passes it on to the intermediate relay unit on the crane, and the appropriate contact is activated.
The operator, from floor level, can not only control forward, backward and other crane and hoist motions, but also the speed at which things happen. There are optional safeguards to prevent moves that the operator cannot see and to prevent collisions with other equipment.

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