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Category: Safety

Apparently there is a belief that only robots compliant with 15.06 2012 may be installed in new or upgraded cells in 2016. I am looking for a concise statement stating that as-manufactured robots compliant with the 1996 standard may be installed in new and upgraded cells in 2016—provided that the rest of the system meets the requirements of the 2012 standard. Please include reference to your credentials. Thanks.

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Frequently I must evaluate "pre-fabricated" robot cells that come to our facility from Japan and they often do not fully meet RIA and OSHA standards. My question is, I have received several such cells where the intent is to have two separate part load fixtures that are serviced by a single pedestal mounted robot that will be welding. There are light curtains that create to separate part load windows but nothing to prevent an operator from reaching through one window into the other side's fixture or into the robot working on the opposite fixture. Is DCS or similar work envelope limiting software adequate?

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I am installing a new robot on an injection molding machine that only has an SPi 12 interface. The controls on the machine will not support dual channel safety. How can install the robot and still be within standards?

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Why do some robot manufacturers place the "Motor Power On" Light on the robot while others don't. Is there a standard that requires this light be mounted on the robot?

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Does a mobile self-propelled stretch wrapper fall under the category of robot as defined in ANSI-RIA R15.06? Or would it fall under the category of general machinery? Here are some examples of product available on the market: http://www.robopac.com/en-IT/products/Vertical_stretch_wrapping_machines/Self_propelled_Robots/robot_s6 http://handleitinc.com/stretch-wrap-machines/stretch-wrap-machine-options/robotic-semi-automatic-stretch-wrap-machine.html

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I would like to create a guard for a machine cell conveyor that enters and exits the cell. My thought is to use a tunnel around the conveyor to guard, but I cannot find any info on guidelines for doing this. Please help. similar to ria part 2 figure c.3

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I'm aware that UL 1740 was originally developed as a certification standard for R15.06-1999. Do you know if there are plans to revise it to reference the latest RIA standard? ...or will it be withdrawn?

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I'm a student researcher working at an engineering research center in a college. The director of the center is interested in building autonomous robots in manufacturing floors that could sense presence around it (like autonomous vehicles), to reduce accidents when it's operating. We want to reduce redundancy in barrier guards, presence sensing devices, or any other safeguards, and also enhance more safety on a robot even though it could be programmed to limit movements spaces. Are there such robots that exist out there already? Is there a market for it?

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What standards are used for mobile robots which are not industrial or personal?

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What is the requirement for robot cell fencing with regards to robot impact strength? I have heard people say a "robot rated" fence is needed in certain circumstances but I can't find the term "robot rated" fence in the RIA standard.

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Where I am walking into a light screen where the robot is picking off the operator side of a turn table, while work is being performed on the other side. I am using the standard formula of US CAN: Ds =K x(Ts + Tc + Tr + Tbm) + Dpf. I was able to find values for each, but the standard K constant of 1600 mm/sec doesn't seem to be the correct constant for this scenario. Ds=('K'*(600+50+23))+78.625. K is a hand speed constant and as my feet and hands can move I would think the value would increase. The standard says it could be 1600-2500 and that would be determined through a risk assessment. How do I determine a speed constant through a risk assessment?

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What are the minimum requirements for guarding an articulated arm robot?

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When doing a robot safety distance calculation, how does having a DCS zone affect the calculation? I know that any safeguarding must be 20" from a DCS zone. Does this mean that my robot safety distance begins 20" from the reach of the robot, or that the safety distance is simply 20".

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I've seen a number of references to a requirement minimum distance between a robot and guarding, specifically to prevent trapping a person between the robot and guard. I have been able to find no other requirement, and infact in ANSI/RIA R15.06-2012, Part 2 5.4.2 Establishing safeguards and restricted spaces, it states "The perimeter safeguards shall not be installed closer to the hazard than the restricted space. If the perimeter safeguard is designed to be the limiting device in accordance with 5.4.3, then the perimeter safeguard establishes a portion of the boundary for both the safeguarded and restricted spaces." This means the guard (provided it meets 5.4.3 requirements) can be used to stop the robot- obviously not a 'best practice' but still possible. So- where is this crushing distance coming from? 5.5.1 mentions "where crushing is prevented by the maintaining of minimum gaps, they shall meet the requirements in ISO 13854." but I'm not completely sure what "Where crushing is prevented..." really means. I've seen many, many cells that do not have any distance between the restricted space and the guards.

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Do the perimeter doors of a robot cell need to swing out and away from the robot?

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Where can I find a download for the TR15.406?

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Hi! I have a question about the safety in an industrial robot cell. My goal is to reduce the risk of collisions of the robot with the fence or the cell. Therefore I am in need of safety systems and solutions, which are capable of doing this. I would be very happy about people i can contact and talk about possibilities and theories. Thank you for your help in advance.

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I want to reduce the size of a safeguarding of a workstation but I do not know the specifications that I have to follow. Could you help me please? Thanks.

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We have a large respot line that has 54 robots and is 200 feet long. The line 65 units per hour. R15.06, 10.8.4 -f states that only one person shall be allowed in the safeguarded space in T2. That is not practical. We must perform other tasks on other robots in other stages at the same time. Can I do this with a risk assessment based on our procedures?

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Are there consultant experts who can evaluate the OSHA compliance of a robotic design? If so, can someone provide a couple of contacts?

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