Safety that maximizes productivity

The COBOTTA PRO maximizes productivity by delivering high-speed operation while maintaining a high level of safety. In addition to enhancing arm design and basic functionality, we developed a new scene function. Moreover, options that increase safety improve productivity by increasing the speed of collaborative operation.

Safe design with few surface irregularities
Extensive basic functionality
Scene function
RLO function
-Option-
Touch sensing
soft cover
-Option-
End effector cover

Safe design with few surface irregularities

The robot features a rounded shape with few protrusions or indentations, reducing the level of risk posed by collisions. In addition, the robot’s joints are designed so that hands will not get caught between them.

Extensive basic functionality

COBOTTA PRO has a variety of safety functions to ensure safety, and risk assessment tools are available.

Function name	Description
Emergency Stop Function	Decelerates the robot until it stops, and then turns OFF the motor. The current program will be Reset-Stopped.
Protective Stop Function	The protective stop function is a function is to be connected to a signal from a safeguard or the like installed in the robot system/cell and stop the robot in response to the input signal.
Monitored-Speed Function	Monitors the robot speed to confirm if it does not exceed the specified speed.
Axis Limiting Function	Monitors the robot axes to confirm if they are not out of the specified motion range.
Monitored-Torque Function	Monitors the robot torque to confirm if it does not exceed the specified torque.
Monitored-Pose Function	Monitors the robot to confirm its pose remains unchanged from the specified pose.
Monitored Standstill Function	Monitors the robot to confirm if it remains stationary after having stopped with its motor ON.
General Safety Input/Output Function	Can be triggered by a signal input to a Safety I/O user input pin to which this function is allocated.
Safety Virtual Fence Function	Monitors the robot to confirm if it does not go beyond the motion range specified by a user.

Scene function

The following description uses a bolt-tightening process as an example. When tightening a bolt, a reaction force is generated, and the robot would stop by that force exceeding the set force value of a safety function. Now the collaborative operation can not continue, and this poses issues, including increased cost due to the need to install a safety fence and losses and inconvenience caused by robot stoppages. The scene function eliminates these issues by making it possible to switch parameters in a robot program according to the situation. The space set by the scene function (robot motion space) is guaranteed by a PL d, Category 3 safety performance.

The operator's hand could get caught between the end point and equipment, so configure parameters with the limited speeds and forces to maintain safety.
Here is a risk of contacting the side of the robot. However, there are no sharp points, so the allowable speed and force can increase during collaborative operation.
The operator's hand could contact the end point, so change to the reduced speed and force to maintain safety.
Here there is no risk of the operator's hand getting caught, the force parameter is greater than the tightening reaction and can be configured so that this robot can continue the collaborative operation.

*These values of monitored speed and force are for reference only.
*Additional safety measures may be necessary depending on the result of a risk assessment.

RLO function

Robot-limited orientation (RLO) is a function for controlling the orientation of the end effector, combined with the scene function. COBOTTA PRO can avoid hazardous collisions with operators, simplifying risk assessment.

Options that further maximize safety and productivity

Touch sensing soft cover

Our touch sensing soft cover is highly compact compared to general-purpose soft covers, even if covers are attached to all robot surfaces. The touch sensing soft cover features a two-layer design consisting of a soft silicon cover and a high-sensitivity built-in sensor. When a collision is detected, the built-in sensor reacts at high speed to immediately stop the robot. The soft cover minimizes the impact force on human workers by absorbing the collision. Protrusions in the silicon cover increase cushioning while realizing high sensitivity. As a result, installing the soft cover increases the speed of collaborative operation. Of course, the COBOTTA PRO is compliant as a collaborative robot with or without a soft cover.

Changes in speed when using the touch sensing soft cover

*The table shows the figures for COBOTTA PRO 1300.
*1 “Clamping” refers to a contact where the body part is clamped and cannot recoil or retract.
*2 “Contact” refers to a contact where the body part is not clamped and can recoil or retract.

End effector cover

We offer end effector covers in two sizes. Choose the one that best suits your end effector’s shape. While the RLO function is effective if there’s only one sharp area, you can avoid high-force collisions involving an end effector with numerous sharp areas by covering it with an end effector cover. The cover incorporates a contact sensor, allowing it to stop the robot if it detects a collision.