Yamaha Motor New Controller Option Boosts Robot Safety

Yamaha Motor Co., Ltd. is set to release this month the functional safety option unit RCX3-SMU for SCARA robots and Cartesian robots with three or more axes controlled by the robot controller RCX340.

As demand for industrial robots expands against the backdrop of labor shortages, rising labor costs, and the need for advanced automation in new fields such as IoT/CASE, safety requirements for industrial robots are also increasing.

Yamaha Motor
Robot controller option RCX3-SMU (left) and robot controller RCX340

Certified for Functional Safety

Mainly, the RCX3-SMU has been certified for functional safety by the certification body TÜV SÜD. Also, it employs a safety functions that comply with the robot safety standard ISO 10218-1. The STO function, SS1 function and speed monitoring function, etc. support the design of safe equipment.

Yamaha Motor is a comprehensive small robot system supplier that offers a wide range of products. Among them include linear conveyors, single-axis robots, SCARA robots, vision systems, and controllers used in automated production lines.

Mainly, the company works to provide the best solutions to meet the diverse needs of its customers.

Main Safety Features of RCX3-SMU

1) STO (Safe Torque Off) function

The built-in main power supply (power supply for driving the motor) switch circuit cuts off the power supply to the controller. (=Safe state)

2) SS1 (Safe Stop 1) function

Monitors the robot’s deceleration and stopping status. If the robot stops or does not decelerate at the appropriate deceleration rate or time, this function executes the STO function and transitions the process to a safe state.

3) Speed monitoring function (SLS)

Monitors the speed of the robot. If the set speed is exceeded, the SS1 function is executed.

4) Area monitoring function (SLP)

The robot’s Cartesian coordinate position and motor pulse position are monitored. If the setting range is exceeded, the SS1 function will be executed.

5) Safety input function

Monitors the status of the safety input port. The SS1 function is executed according to the status of the safety input port and the safety input function (emergency stop, mode select, manual mode protection stop, etc.) set for each port.

6) Safety output function

Each safety output port outputs the set internal state (emergency stop state, safe state, etc.)

Yamaha Motor
Safety feature examples

-21 June 2024-