Handling of Electric Vacuum Generator

Basic Movements

Electric vacuum generator grips and releases a workpiece by changing the pump rotation direction by the motor.

Running the pump in clockwise generates the negative pressure in the air intake hole. A workpiece is applyed vacuum on by the negative pressure. 
When the pump is stopped, the negative pressure is released and a workpiece is released. 
Running the pump counter-clockwise expels air from the air intake hole (blower operation).

Use the blower operation only when a workpiece sticks to the vacuum pad even if you stop the pump.

Precautions for Use

• If you execute the vacuum operation continuously, the electric vacuum generator may become hot. When in use, stop the vacuum operation at the appropriate time to avoid overheating.
• For some reason, such as an emergency stop input signal, if the motor of COBOTTA unit turns off, the motor of the electric vacuum generator will turn off. Please note that when you turn off the motors while a workpiece is gripped, the workpiece will fall.
• When in COBOTTA operation, if the [Current position entered the Exclusive area] error or the [Current position collided with the virtual fence] error occurs in the exclusive control function or in the virtual fence function, the motors are not turned off. However, when a COBOTTA and an RC8 series-controlled robot are monitored in the same group, if one of the above error occurs in the RC8 series-controlled robot, the motors are turned off and a workpiece may fall.

Point Data

"Point data" is a data format that consists of the motion direction and the vacuum pressure. There are two ways to program the motion of the electric vacuum generator: To specify the motion direction and the vacuum pressure of the electric vacuum generator directly (point data is not used); To call preset point data for command execution (point data is used).