CSP-11 CSP-11 D1.07 · Domain 1 · Advanced Application of Safety Principles · 25%
Tools / Machines / Robotics
A collaborative robot places machined parts beside an assembler while a sharp deburring tool crosses the shared reach envelope every cycle. The integrator proposes a yellow chain and a lower speed setting. You are reviewing the cell: what must keep a hand from reaching hazardous motion in production, teaching, recovery, and servicing?
Updated . Independent CSP-11 practice. Not BCSP-endorsed. No pass guarantee.
Decision rule
Guard the nip so a body part cannot reach energy. A card on the machine is not a guard.
Tools and machines need fixed or interlocked guards sized to the opening and the stopping time.
In 20 seconds
- Guard the nip so a body part cannot reach energy.
- A card on the machine is not a guard.
- Safeguarding matches the task: fixed guard, interlock, light curtain, area scanner, or validated collaborative limits.
- Remove guards only under LOTO — never for production rate.
How to apply Tools / Machines / Robotics
THEORY: Point-of-operation and in-running nip guarding. If access is required, design a maintenance mode with isolation. Stopping-distance math lives in Class 110. CALC: None unless the stem gives stop time and approach speed. Then distance = speed x time, using given units. FIELD: Punch press on the PO with an unguarded point of operation. Specify the interlocked barrier on the order. ASSESS: Cut-resistant sleeves are PPE around an open nip.
Worked case
Wrong first move: gloves and a buddy system on an unguarded press. Correct move: interlocked barrier on the purchase order; maintenance mode for die change.
Why the rule holds
Related: 01, 02, 05, 110.
Same rule, different setting
A collaborative robot will share a bench with a technician on a process skid. The integrator wants a yellow chain and slow speed. You are on the risk assessment. The question is whether a painted chain is safeguarding.
A collaborative robot will share a bench in a site fab shop. The integrator wants a yellow chain and slow speed. You are on the risk assessment. The question is whether a painted chain is safeguarding.
Picture / model
Four safeguarding paths: physical separation with a fixed barrier; controlled access with an interlocked guard; safety-rated presence sensing with validated placement; or a risk-assessed collaborative application with defined limits. A yellow chain is labeled WARNING ONLY. Side callout: measured total stop time feeds the protective-distance analysis; v×t is only the approach-travel term, not the complete placement equation.
Exam traps
Original SafePath contrasts for Tools / Machines / Robotics. These are study traps, not recalled BCSP items.
| Trap | Correct read |
|---|---|
| Yellow chain and slow speed | Admin / hope — not validated safeguarding |
| Interlocked fence or validated cobot limits | Engineering safeguarding |
| Teach mode in production | Wrong mode — enabling device and reduced speed are not a production plan |
| Glove instead of a grinder guard | PPE around a missing tool guard |
Field move
A yellow chain is not a safeguard.
Scenarios
Scenario 1 · Fundamental · CSP-11 D1.07
Cobot will share a bench. Integrator proposes a yellow chain and slow speed. Fencing with a pass-through window is still possible. Best CSP recommendation?
Best action: Specify a fence/window if the task allows; if true collaboration remains, require validated force/speed/space — not a chain.
Why: Evaluate the cobot that will share a bench. The integrator proposes a yellow chain and slow speed, and fencing with a pass-through window is still possible. Specify a fence and window if the task allows. If true collaboration remains, require validated force, speed, and space, not a chain. Approvin…
Scenario 2 · Applied Scenario · CSP-11 D1.07
During a collaborative-robot risk assessment, the assembler must share the workbench and a full perimeter fence would prevent the task. Which remaining control is most defensible?
Best action: Validated collaborative application (force, speed, pressure, stopping, defined space) plus residual PPE; chain is still not the safeguard.
Why: Evaluate the best response. The assembler must share the workbench, so a full fence would stop the task. The best remaining control is a validated collaborative application: force, speed, pressure, stopping distance, and a defined space, with PPE only for what that validation leaves. A yellow chain…
Scenario 3 · Applied Scenario · CSP-11 D1.07
Service on the robot requires a person in the cell with power available for jog. Best energy control?
Best action: Designed maintenance mode: enabling device, reduced speed, and LOTO for work that does not need power. Do not service in automatic.
Why: Evaluate the best response. Service requires a person in the cell with power available for jog. The best energy control is the designed maintenance mode: enabling device, reduced speed, and lockout for work that does not need power. Production automatic mode with a chain leaves full-speed motion av…
If the stem says this
| Stem signal | Best direction |
|---|---|
| a guard is removed to clear jams on the run | stop and LOTO — restore safeguarding |
| robot cell uses only floor tape | require interlocked fencing or validated alternative |
| light curtain distance is too short for stop time | increase distance or improve stopping — do not hope |
| maintenance needs access inside the cell | designed maintenance mode with energy control |
| two answers work | higher hierarchy / system / design |
Check before you leave
- ✓ Safeguarding matches the task: fixed guard, interlock, light curtain, area scanner, or validated collaborative limits.
- ✓ Remove guards only under LOTO — never for production rate.
- ✓ Robot cells need interlocked perimeter and designed maintenance modes.
- ✓ Two-hand controls and presence-sensing devices require proper distance and stop performance.
- ✓ Floor tape is not a safeguard for an industrial robot.
- ✓ Collaborative robot claims still need risk assessment and validated limits.
Blueprint mapping
Tools / Machines / Robotics is the SafePath study class for CSP-11 D1.07 inside CSP-11 Domain 1, Advanced Application of Safety Principles (25%). The largest CSP-11 domain. It tests whether you can select and evaluate practical controls across design, process safety, workplace hazards, life safety, fleet safety, materials handling, and equipment.
SafePath uses the publicly posted CSP-11 outline as a study map. It does not reproduce official exam content, and it is not affiliated with or endorsed by BCSP or Pearson VUE.
Practice / flashcards / formulas
More classes in Advanced Application of Safety Principles
Nearby lessons mapped to the same CSP-11 domain.
CSP-11 D1.07
Other classes on this task
Guides that use Tools / Machines / Robotics
- Construction safety study guideFalls, lifting, excavation, and design controls
- Manufacturing safety study guideGuarding, hazardous energy, and change
- CSP-11 exam prep guideDomain weights, sample items, and a study sequence
- CSP-11 blueprint and weightsSeven published domains and the class map
- Seven-domain study directoryScope, tasks, and links into each lesson
Tools / Machines / Robotics study questions
- What decision does the Tools / Machines / Robotics class train?
- Guard the nip so a body part cannot reach energy. A card on the machine is not a guard. This is independent SafePath CSP practice for CSP-11 D1.07. It is not an official BCSP item and it is not a pass guarantee.
- What exam trap shows up in Tools / Machines / Robotics?
- A common miss treats this as sufficient: Yellow chain and slow speed The stronger read is: Admin / hope — not validated safeguarding
- How does Tools / Machines / Robotics map to the CSP-11 blueprint?
- SafePath maps this class to CSP-11 D1.07 in Domain 1, Advanced Application of Safety Principles (25% of the published blueprint). Use the public outline for study planning. SafePath is not affiliated with or endorsed by BCSP.
Verify
Verify: Confirm current certification requirements with BCSP and technical requirements with the cited authoritative standard.