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Category: Safety

Sir or Madam, In using the ANSI/RIA R15.06-2012 to maintain compliance I am constantly running into references to other documents. There is no explanation of the standard just a general "shall be consistent with or meet the requirements of (fill in the blank other standard). In each case, these documents are available at a significant cost. What is the purpose of assembling an all-inclusive guideline for robot integrators if all it does is point me to other documents. Very frustrating.

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I have a robot cell with a large steel structure inside of it. The robot's workspace is inside of this structure. Access to one side of the structure is needed very rarely (maybe once a year) for maintenance on different parts of the structure. We have put "drop-n-lock" style fencing (requires a tool to lock and unlock the panels) with no movable panels (gates, etc..) on this side. Access to this area is only possible if fence panel(s) are removed. If maintenance/repair is needed, the operator will need to remove a panel (using a tool) to gain access. Is the fact that a tool is needed to do this sufficient? or do the panels that are deemed "removable" for maintenance need to be interlocked?

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I am working on safety for input conveyor where operator will feed parts and it will index one position at a time. Position where robot picks the part is inside the fence and I do have light curtain on loading side of conveyor at appropriate distance from robot (1.5 m) gripper but not so far from loading point (500mm). But there are some pinch point at loading side. So will operator process start button with combination of that light curtain would be considered safe enough? That operator run bar has process start confirmation, ESTOP and reset.

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If a Safety Professional wanted to up his knowledge of the safety protocols and opportunities in implementing a robot what would be the best course for training? Any suggestions? Also, incorporate some of the technical side?

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Is there a governing authority such as OSHA that specifies the need to have hard stops for the industrial robots used in a manufacturing facility?

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I am using small robot to teach employees how to program robots. The robot has had the auto run setting removed and will/can only be used in manual mode with the teach pendant. I am trying to figure out what other protections might be required. I am l leaning toward a fixed barrier guard enclosure with just a warning line at the entry area. In addition, employees will be trained that only a single employee can be in the enclosure. It doesn't seem logical to require a light curtain or gate at the entry since the robot is permanently in slow speed teach mode. Any advice?

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Are retractable belt fences commonly used anywhere in the world, in industry or in academia, as safety fencing for industrial robotic cells?

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Is it acceptable to use mirrors to improve visibility? We're considering a robot cell with a few blind spots. Per 15.06, the interlock reset should "have a clear and unobstructed view of the safeguarded space." Have people used mirrors successfully to address blind spots without the need for a timed reset button inside the cell or presence sensing?

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We have a Kuka KR3 R540 robot that is being integrated into an existing system for vision inspection. The mounting location for the robot is in a tight area between a table and the lexan guarding. With this is being integrated into a portion of a system that was built by a different integrator, would we need to ensure the entire line is meets RIA standards prior to installing this robot or just the station it is being integrated into? Thank you.

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We are working on a small 6-axis robot (7kg rated) application that has the safety enclosure much smaller than the robot reach. Hard stops on the axis points are not feasible for the required motion and the safety rated (Cat3, PLd) planes that can be programmed inside the enclosure are also not feasible due to safe distance calculations for "overshoot." We believe that our only option is to build an enclosure that is strong enough to contain the worst case inertia of the robot and payload, which would be coasting into the enclosure after crossing the safety plane. We can do the math to determine the inertia and can develop a simulated impact test on enclosure parts, but we don't know if there are any specific requirements, test methods, pass/fail criteria, documentation, etc. that we should be following. Is guard strength testing the correct solution for our application and is there any industry guidance on conducting this guard validation?

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During an alternate LOTO procedure, where a Auto tech places the robot cell in maintenance mode (in order to work on it and power is needed), and then enters a multi robot cell, with multiple robots with his working envelope, what is the best scenario to have total and exclusive control of these numerous robot without be able to carry numerous teach pendants. I spoke to a MIOSHA rep and suggested that we create a very detailed risk assessment for this very specific alternate LOTO procedure The practicality is, how can an Auto tech carry 6 teach pendants with him while working on one or two robots? and still have total and exclusive control of the robots in his working envelope?

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Is there a standard or best management practice or Checklist (preferred) to audit our Safety PLC controls to determine they are good during a risk assessment?

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What woul make the light curtin not work

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When training a new robot tech, we have 2 employees inside the work area. One has the pendant, in teach mode and the other is around them learning. My question is,"Does the other employee need a deadman switch?" Same thing with Maintenance personnel, "Do we need a deadman for each one in the cell?"

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I am looking into risk assessment software? Is there software that does this and the circuit validation and verification with it?

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How to determine fence height requirements for Fanuc 2000IC_210F Robot cell?

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Hi. We are a robot integrator and also we design the robot cells(mechanical/guarding and electrical/safety circuits). I understand how to do the risk assessment part, but I'm confused about the checklists Part 1: Annex F and Part 2:Annex G of ANSI-RIA R15.06. We once hired a professional safety assessment firm on our behalf, and they only completed Part 1:Annex F. But we are now going to do our own assessments, and I feel as though we should be doing both. Any suggestions from another integrator/OEM? Do you fill out one of them or both? Thanks in advance.

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Greetings, I am looking for reference material to cite in order to design a robot pedestal to be anchored to a cement floor. I am currently referencing a 2009 International Building Code and looking at allowable service load on embedded bolts. I am looking for reference material that will guide in the thickness and size of the base plate anchored to the floor as well as the required number/size of anchor bolts. I appreciate any help you can give. Thanks! James

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Working on the the safety distance calculation for a Motoman robot with a light curtain guarding a forklift opening. We have FSU so I can do safety speed monitoring. My safety distance calculation currently includes human walking speed toward light curtain, and the combined stopping times of all the equipment from trip to robot stop. My questions are this. Do I need to include the distance traveled by the robot in this time? If so, how is this calculation possible prior to deployment of the cell? Second Motoman only rates the S L and U axes stop times, are the other axes irrelevant? Third, Motoman rates their stop times in Deg/S per axis. the example in RIA 15.06-2012 depicts mm/sec. Am I only concerned with ensuring my joint deg/s speeds are slow enough to stop within the required stop time with no regard to TCP speed?

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We have several robotic palletizing cells. Each cell has a variety of case sizes that are being brought into the cell by roller conveyor. Some of our cases are large so the openings through the perimeter fencing are large enough for a person to crawl through if they got onto the in-feed conveyor. According to ANSI/RIA R15.06 - 2012 is there a safety standard that dictates what level of safety we need to have at these in-feed openings?

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