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Operate

Planned

  • Twin: a twin-ready view of the arm and its cell
  • Program your machine: Blockly and Python programs of your own

Resource Desk

Operate the Real Arm · xArm 850 · Step 1 of 9

Prepare for Operation

Before the arm moves, you check that it is fit to run, that you know how to stop it, and that you are allowed to run it. Work through this page every time, not only the first time.

Read the Manufacturer's Instructions

  • Follow UFACTORY's instructions and the lab's safety procedures1.
  • For the 850 these are UFACTORY's 850 hardware manual and the UFACTORY Studio user manual, which covers the 850. Both are linked in this page's references23.
  • UFACTORY says each operator should read the manual and understand the arm's operating procedures and how to deal with its errors. Read Studio's Live Control and Error Handling chapters before your first run456.

Personal Protective Equipment

  • Wear all the protective equipment the lab requires1.
  • Ask lab staff what to wear before you begin17.
  • The arm and control box get hot in use: do not touch them while they run or just after8.

Inspect Before Each Use

UFACTORY says the arm and the whole system must be checked before each use9.

  1. The arm: it is securely bolted in place, its joints are fitted properly and its bolts are not loose10.
  2. The tool: the suction tool is properly and securely fixed to the end of the arm1011.
  3. The cables: the power and signal cables between the arm and the control box, the network cable and the control box's power cable are properly connected121314.
  4. The work area: there is room for the arm to move and nothing in its way, and nobody is inside its reach, including the reach of its tool41516.
  5. Utilities: the control box's power cable is connected, and all the circuits' status is checked1410.
  6. Safety: confirm current lab safety protocols are being followed1.

Warning

Do no maintenance, electrical work or internal troubleshooting unless you are specifically authorized17. Never connect or disconnect the arm cable while the system is on mains power: it can give you an electric shock18.

The Emergency Stop

The top of the xArm 850's control box with its red mushroom emergency stop button on a yellow ring marked STOP.
The xArm 850's emergency stop, on the top of its control box19. Image: Derek Stringfellow
  • The 850's emergency stop is the red button on its control box. Nothing else is wired into its emergency-stop input19.
  • Pressing it removes the arm's power within 300 ms. The arm brakes slightly and falls, and a card it holds can drop202122.
  • The control box must sit outside the arm's working range, where the button can be reached in an emergency23.
  • Studio's STOP button is a software stop that leaves the power on. It is not an emergency stop2425.

In an Emergency

  1. Press the emergency stop on the control box19.
  2. Stay clear of the arm and of anything under it2122.
  3. Tell lab staff, and leave the restart to them unless you are trained for it2627.

Get Approval

  • Get the approval of an instructor or authorized lab staff before you begin. They supervise the run when required7.
  • Stop and ask for help whenever you are unsure of the arm's condition27.

Printed from https://www.anotherplace.com/learn/en/xarm-850/operate/prepare. Every line cites its source on that page.

Provenance

References · 27

Each number in the text points here. Every entry states its confidence class in words and keeps its evidence one click away. How to read the labels.

Key to the badges
Confidence: Verified
A manufacturer or IntelliMake document says so, the project owner stated it as the design, or it was observed directly. It does not mean anyone measured it at S2.
Confidence: Inferred
Reasoned from Verified facts. The reasoning is printed with the record.
Confidence: Assumed
Plausible but untested. The record says how it would be checked.
Kind: Gap
Not known. No figure or answer is given in its place.
Kind: Contradiction
Sources disagree. Both sides are shown, and the site does not pick one silently.
Kind: Recommendation
Project advice drawn from the records it cites. Not a fact about the machine and not a confidence class, so the filter never hides it.
Awaiting cell access
Awaiting cell access: could be confirmed or corrected once the physical S2 cell can be observed.
This project's simulation and agent design, not the physical cell
This project's simulation and agent design, not the physical cell.

  1. Confidence: Verifiedint-601

    The record says

    IntelliMake's laboratory rules for operating a Phase 1 Factory machine: do not operate one without the required training and authorization, follow the manufacturer's instructions and IntelliMake's laboratory safety procedures, and wear all the personal protective equipment required.

    Evidence · 3 citations

    Do not operate any machine without required training and authorization.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements', first item

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    Follow manufacturer instructions and IntelliMake laboratory safety procedures.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements', second item

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    Wear all required personal protective equipment.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements', third item

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

  2. Confidence: Verifiediface-145

    The record says

    UFACTORY's own 850 documentation names UFACTORY Studio as software for the 850: the online 850 hardware manual lists it under 'Programming' and uses it to enable the arm and to configure controller I/O. So the UFACTORY Studio User Manual, which covers the whole xArm series, applies to the 850.

    Evidence · 4 citations

    Programming UFACTORY Studio, Python/C++/ROS

    UFACTORY 850 Hardware Manual (online), 8. Technical Specifications · UFACTORY · 8. Technical Specifications, table 'UFACTORY 850', 'Programming' row

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    Enable the 850 (enable the servo motor), Enable button on the UFACTOR Studio or Python SDK motion_enable(true)

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.1.2 Emergency Stop Button, restart steps

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    Configure "CI0" as the safeguard reset in UFactory studio.

    UFACTORY 850 Hardware Manual (online), 3. Controller Electrical Interface · UFACTORY · 3.4.1 Safety I/O, protection reset with reset button

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    Apply to model: xArm5, xArm6, xArm7, UFACTORY 850, Lite6.

    UFACTORY Studio User Manual (online), 1. Preface · UFACTORY · 1. Preface (series document, supporting)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  3. Confidence: Verifiedres-004

    The record says

    The UFACTORY Studio User Manual (online), published by UFACTORY and applying to the 850, explains the browser-based Studio application: live control, Blockly drag-and-drop programming and settings. Suits beginners and novices learning to operate the arm without code.

    Evidence · 2 citations

    UFACTORY Studio allows users to plan the motion trajectory for the robotic arm without programming skills.

    UFACTORY Studio User Manual (online), 1. Preface · UFACTORY · Section 1 Preface

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    xArm5, xArm6, xArm7, UFACTORY 850, Lite6.

    UFACTORY Studio User Manual (online), 1. Preface · UFACTORY · Section 1 Preface, 'Apply to model'

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  4. Confidence: Verifiedops-214

    The record says

    UFACTORY's 850 manual says each operator should read the user manual carefully and fully understand the arm's standard operating procedures and the solutions to its running errors, and that before operation there must be enough space for the arm to move freely and no obstacle in its working space.

    Evidence · 3 citations

    Each operator who uses the robotic arm system should read the product user manual carefully. Users should fully understand the standardized operating procedures with the robotic arm, and the solution to the robotic arm running error.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.4 Personnel Safety, CAUTION (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    Make sure that there is enough space for the manipulator to move freely.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1. Safety, CAUTION (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    Make sure that there is no obstacle in the robotic arm’s working space.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1. Safety, CAUTION (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  5. Confidence: Verifiedops-201

    The record says

    In UFACTORY Studio's Live Control, the Recording panel plays and pauses a recorded trajectory and sets its playback speed and how many times it plays. Creating a new recording turns Manual Mode on so the arm can be dragged by hand, and UFACTORY says to watch the arm's load state while recording, so that a big difference between the actual and the set load does not make the arm move by itself.

    Evidence · 6 citations

    1. Play: play the trajectory.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.2 Recording, button list (read 2026-10-23, publisher's commit cf19147, unchanged since 2026-10-13; the page names no Studio or firmware version)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    2. Pause: pause the trajectory.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.2 Recording, button list (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    3. Speed: set playback speed.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.2 Recording, button list (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    4. Times: set playback times.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.2 Recording, button list (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Manual Mode will be turned on accordingly by clicking on the button, and the robotic arm can be dragged directly for trajectory recording.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.2 Recording, 'Create New File' (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    be sure to pay attention to the load state of the robotic arm, so as to avoid the big difference between the actual load and the set load of the robotic arm, resulting in its self-motion.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.2 Recording, 'Create New File' (read 2026-10-23, publisher's commit cf19147)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  6. Confidence: Verifiedops-093

    The record says

    As UFACTORY's Studio manual read on 2026-10-13, the C31 row (abnormal current in the robotic arm) shows the robot's serial number, the joint with its theoretical and actual torque, the collision sensitivity, the TCP payload and center of mass, and the mounting direction, and gives one instruction: check whether the robot has collided.

    Evidence · 7 citations

    C31 | Abnormal current in the robotic arm.

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C31 (read 2026-10-13, publisher's commit e28e232; the page names no Studio or firmware version)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Robot SN: XXXXXXXXXXXX

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C31, second line (read 2026-10-13, publisher's commit e28e232)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Joint ID [x], theoretical torque is xx.xx N·m, actual torque is xx.xx N·m

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C31, third line (read 2026-10-13, publisher's commit e28e232)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Collision sensitivity x

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C31, fourth line (read 2026-10-13, publisher's commit e28e232)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    TCP payload xx kg, center ofmass [0 ,0,0]mm

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C31, fifth line (read 2026-10-13, publisher's commit e28e232)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Mounting direction [xx°,xx°]

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C31, sixth line (read 2026-10-13, publisher's commit e28e232)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

    Please check whether the robot collides

    UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY · 12.1 table, C31, last line (read 2026-10-13, publisher's commit e28e232)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  7. Confidence: Verifiedint-602

    The record says

    IntelliMake's laboratory requires an operator to get the approval of an instructor or authorized lab staff before operating a Phase 1 Factory machine, and an instructor or authorized lab staff supervises the operation when required.

    Evidence · 2 citations

    Obtain instructor or authorized lab personnel approval before beginning.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · '1. Prepare for Operation', fifth item

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    The instructor or authorized lab personnel must supervise the operation when required.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · '3. Operate the Machine', last paragraph

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

  8. Confidence: Verifiedsafety-014

    The record says

    The 850 arm and control box get hot in operation; UFACTORY says not to handle or touch them during or immediately after operation.

    Evidence · 1 citation

    The robotic arm and Control Box will generate heat during operation. Do not handle or touch the robotic arm and Control Box while in operation or immediately after the operation.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.3, HIGH TEMPERATURE

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  9. Confidence: Verifiedsafety-008

    The record says

    UFACTORY says the device and system must be checked before each use, and the arm and the peripheral protection system must be tested and inspected before production.

    Evidence · 2 citations

    The integrity of the device and system must be checked before each use (e. g. the operational safety and the possible damage of the robotic arm and other device systems).

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.3, DANGER list

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    Preliminary testing and inspection for both robotic arm and peripheral protection system before production is essential.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.3, DANGER list

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  10. Confidence: Verifiedops-212

    The record says

    UFACTORY's 850 manual says to make sure the arm and its tool are properly and securely bolted in place, that its joints and tools are installed properly and safely with the status of all circuits checked, and to check the arm regularly for loosening bolts.

    Evidence · 3 citations

    Make sure the robotic arm and tool are properly and securely bolted in place.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1. Safety, general precautions (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    Make sure the robotic arm’s joints and tools are installed properly and safely, and check the status for all circuits.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1. Safety, CAUTION (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    Check the robotic arm regularly to prevent loosening of the bolts that may cause undesirable consequences.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.4 Personnel Safety, CAUTION (read 2026-10-23)

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  11. Confidence: VerifiedAwaiting cell accessint-064

    The record says

    The xArm 850 at S2 uses a single suction aperture as its attachment.

    Awaiting cell access: this could be confirmed or corrected once the physical S2 cell can be observed.

    Evidence · 1 citation

    850 uses a single suction apperture as its attachment

    Owner statements from 2026-09-24 onward (verbatim; S40 and later) · Derek Stringfellow · Statement S90

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-04

    Project copy; not published on this site.

  12. Confidence: Verifiedops-018

    The record says

    Before power-on, check that the power and communication cables between the control box and the arm are properly connected.

    Evidence · 1 citation

    Ensure the power cable and the communication wire are properly connected between the Control Box and the robotic arm.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.3 Power Supply for 850

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  13. Confidence: Verifiedops-019

    The record says

    Before power-on, check that the network cable or RS-485 cable is properly connected.

    Evidence · 1 citation

    Ensure the network cable or RS-485 cable is properly connected.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.3 Power Supply for 850

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  14. Confidence: Verifiedops-020

    The record says

    Before power-on, check that the control box power cable is properly connected.

    Evidence · 1 citation

    Ensure the power cable for the Control Box is properly connected.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.3 Power Supply for 850

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  15. Confidence: Verifiedops-021

    The record says

    Before power-on, make sure the 850 cannot hit any person or equipment within its working range.

    Evidence · 1 citation

    Ensure the 850 will not hit any personnel or equipment within the working range.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.3 Power Supply for 850

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  16. Confidence: Verifiedsafety-011

    The record says

    UFACTORY recommends marking the arm's range of motion with a line, including the reach of its end tools such as grippers and suction cups.

    Evidence · 1 citation

    A line should be drawn to mark the range of motion of the robotic arm to let the operator acknowledge the robotic arm, including its end tools (such as gripper and suction cup, etc) operating range.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.4 Personnel Safety, CAUTION

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  17. Confidence: Verifiedint-604

    The record says

    IntelliMake's laboratory rules ask the operator to confirm that guards, interlocks, emergency stops and safety zones are functional, to inspect the machine, tooling, work area, utilities and safety devices before operating, and not to do maintenance, electrical work or internal troubleshooting unless specifically authorized.

    Evidence · 3 citations

    Confirm that guards, interlocks, emergency stops, and safety zones are functional.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements'

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    Inspect the machine, tooling, work area, utilities, and safety devices.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · '1. Prepare for Operation', third item

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    Do not perform maintenance, electrical work, or internal troubleshooting unless specifically authorized.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements'

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

  18. Confidence: Verifiedsafety-017

    The record says

    To avoid electric shock, the 850 arm cable must not be connected or disconnected while the system is connected to external AC power.

    Evidence · 1 citation

    When connecting or disconnecting the arm cable, make sure that the external AC is disconnected. To avoid any electric shock hazard, do not connect or disconnect the robotic arm cable when the robotic arm is connecting with external AC.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.2.1 Safety Guidelines, WARNING

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  19. Confidence: VerifiedAwaiting cell accesssafety-204

    The record says

    The xArm 850's emergency stop is the red button on its control box, and nothing else is wired into the box's emergency-stop input (as reported from the lab on 2026-10-22). The cell's stations run from a distributed power system that can cut all power, rather than a shared emergency-stop circuit.

    Awaiting cell access: this could be confirmed or corrected once the physical S2 cell can be observed.

    Reasoning: Verified for what the dated report from the lab says (S230, S232), as of 2026-10-22, with the photo of the control box. It says where the button is and what is wired; it is not a test that the stop works, which stays unconfirmed until a test is on record. No inspection of the wiring is recorded.

    Evidence · 3 citations

    The estop is on the control box

    Owner statements from 2026-09-24 onward (verbatim; S40 and later) · Derek Stringfellow · Statement S230 (2026-10-22)

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-04

    Project copy; not published on this site.

    Currently nothing else is wired into the estop input, and the stations run from a distributed power management system, so not a shared circuit per se, but all pwoer could be cut off if needed

    Owner statements from 2026-09-24 onward (verbatim; S40 and later) · Derek Stringfellow · Statement S232 (2026-10-22)

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-04

    Project copy; not published on this site.

    a red mushroom emergency-stop button on a yellow ring marked "STOP" on the top face

    UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow · Control-box photo

    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22

    Project copy; not published on this site.

  20. Confidence: Verifiedops-059

    The record says

    Pressing the control box emergency stop makes the controller decelerate the arm in software, clears all cached commands, and removes power from the arm within 300 ms; the arm will slightly brake and fall.

    Evidence · 2 citations

    Quote not shown (over 40 words). See the source at: 2.1.2 Emergency Stop Button.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.1.2 Emergency Stop Button

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    the posture of the robotic arm will slightly brake and fall.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.1.2 Emergency Stop Button

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  21. Confidence: Verifiedsafety-027

    The record says

    When the emergency stop is pressed, the 850 does not hold perfectly still: UFACTORY says it will brake slightly and fall.

    Evidence · 1 citation

    When an emergency occurs during the operation of the robotic arm, users need to press the emergency stop, and the posture of the robotic arm will slightly brake and fall.

    UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY · 2.1.2 Emergency Stop Button

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  22. Confidence: Verifiedsafety-012

    The record says

    UFACTORY warns that items can drop from the 850 if power is lost accidentally or if the gripper holds them unstably.

    Evidence · 1 citation

    Be careful about dropping items that can be caused by accidental power off or unstable clamping of the robotic arm.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.4 Personnel Safety, CAUTION

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  23. Confidence: Verifiedsafety-029

    The record says

    UFACTORY says the control box must be placed outside the arm's working range so that its emergency stop button can be reached in an emergency.

    Evidence · 1 citation

    The Control Box must be placed outside the working range of the robotic arm to ensure the emergency stop button can be pressed once an emergency occurs.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.3, CAUTION

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  24. Confidence: Verifiedops-057

    The record says

    The Studio STOP button stops the arm immediately and clears all cached commands; it is a software stop and the power stays on.

    Evidence · 1 citation

    **STOP:** The robotic arm will stop immediately and clear all cache commands. It's a **software stop**, the power is still on.

    UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY · 4.5 Enable & STOP button

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13

    Open the source

  25. Kind: RecommendationThis project's simulation and agent design, not the physical cellsafety-142

    Project advice

    Do not count a software stop (Studio's STOP, SDK set_state(4) or SDK emergency_stop()) as an emergency stop or safeguard in the S2 risk assessment.

    This is advice from this project, based on: safety-089 Inferred safety-035 Verified safety-036 Verified safety-025 Verified

    Why: Software stops leave arm power on and are not the hardware emergency stop (safety-089, safety-035, safety-036), which removes arm power (safety-025). Crediting them as an emergency stop would overstate the protection the cell has.

  26. Confidence: Verifiedsafety-007

    The record says

    UFACTORY says installation and commissioning must be done by professionals, and operators must be trained in the SDK and UFACTORY Studio.

    Evidence · 2 citations

    Please follow the instructions in this manual, installation, and commissioning needs to be performed by professionals in accordance

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.3, DANGER list

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

    The operator must be trained to guarantee a correct operation procedure when using SDK(Python/ROS/C++) and graphical interface UFactory studio.

    UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY · 1.3, DANGER list

    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21

    Open the source

  27. Confidence: Verifiedint-603

    The record says

    IntelliMake's laboratory rules for a collaborative robot: verify the approved speed, payload, workspace and safety configuration before enabling motion; do not bypass safety devices or modify protected settings; and stop the machine and ask for help whenever its condition is uncertain.

    Evidence · 3 citations

    For collaborative robots, verify the approved speed, payload, workspace, and safety configuration before enabling motion.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements', collaborative robots

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    Do not bypass safety devices or modify protected settings.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements'

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

    Stop the machine and request assistance whenever its condition is uncertain.

    'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course · 'Safety Requirements'

    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23

    Project copy; not published on this site.

Image Credits

  • The top of the xArm 850's control box with its red mushroom emergency stop button on a yellow ring marked STOP. © Derek Stringfellow (photograph). Source. A photo taken for this course.

Sources for This Page

  • 'Operate Your Machine': operating requirements and safety requirements for the Phase 1 Factory machines (course text as pasted by Derek, 2026-10-23) · IntelliMake Phase 1 Factory course (IntelliMake)
    IntelliMake course text, as pasted by Derek Stringfellow · Project-internal record · retrieved 2026-10-23 · cited by 4 records here · Project copy; not published on this site.
  • Owner statements from 2026-09-24 onward (verbatim; S40 and later) · Derek Stringfellow (project owner)
    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-04 · cited by 2 records here · Project copy; not published on this site.
  • UFACTORY 850 Hardware Manual (online), 1. Safety · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21 · cited by 8 records here · Open the source
  • UFACTORY 850 Hardware Manual (online), 2. Hardware Installation · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21 · cited by 8 records here · Open the source
  • UFACTORY 850 Hardware Manual (online), 3. Controller Electrical Interface · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21 · cited by 1 record here · Open the source
  • UFACTORY 850 Hardware Manual (online), 8. Technical Specifications · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21 · cited by 1 record here · Open the source
  • UFACTORY Studio screens and a control-box photo for the xArm 850, 2026-10-22: what they show (OBSERVATIONS.md) · Derek Stringfellow (project owner)
    Derek Stringfellow, project record · Project-internal record · retrieved 2026-10-22 · cited by 1 record here · Project copy; not published on this site.
  • UFACTORY Studio User Manual (online), 1. Preface · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-09-21 · cited by 2 records here · Open the source
  • UFACTORY Studio User Manual (online), 12. Error Handling · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13 · cited by 1 record here · Open the source
  • UFACTORY Studio User Manual (online), 4. Live Control · UFACTORY (manufacturer)
    © UFACTORY · All rights reserved; quoted briefly as evidence · retrieved 2026-10-13 · cited by 2 records here · Open the source

IntelliMake diagrams are redrawn as native figures, © IntelliMake.org. UFACTORY does not endorse this platform.

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