Chapter 2: Operational Safety l Power to the robot and its power supply must be locked out and tagged out before any maintenance is performed. 2.4 Risk Assessment Safety standards in many countries require appropriate safety equipment to be installed as part of the system. Safeguards must comply with all applicable local and national standards for the location where the robot is installed. We have performed Risk Assessments for OMRON robots, based on the intended applications of the robot. The conclusions are summarized in this section. The performance level (PL) calculation for safety functions of the OMRON robot mechanisms are based on the ISO 13849-1 evaluation for the following products:
l eAIB controller l eMB-40 controller l eMB-60 controller l iCS-ECAT controller l iCS-ENET controller l eCS-ECAT controller l SmartControllerEX controller l Cobra robots l eCobra robots l Quattro robots l Hornet robots l Viper robots l i4L robots l T20 pendant The contained safety functions are provided in the table below. Safety functions 4 and 5 are provided for use with an end-user supplied external E-Stop, door guard switch, or device tied to the E-Stop output indicator connection. The end user is respons- ible for calculating the overall PL, inclusive of user-supplied components, and performing a final risk assessment. 18304-000 Rev. F Robot Safety Guide 13 No.
Safety Function Name PL Achieved PFH [1/h] 1 Emergency Stop e 3.03E-8 2 Teach Mode Velocity Monitor d 1.90E-7 3 E-Stop Output Indicator e 2.91E-8 4 Emergency Stop for Use with Customer-Provided Switch e 3.39E-8 5 E-Stop Output Indicator for Use with Customer-Provided Switch e 3.10E-8