Part of the Controls and electronics section. Cycle/yoke sensing for safe stop conditions and cycle counting (implementation TBD).
Introduction
P6 requires a sensor to detect machine cycle state and/or yoke position. This supports:
(1) controlled safe stop conditions (e.g., do not stop with peelers in an unsafe open state),
(2) cycle counting over time for operations monitoring,
(3) a critical "fully open stop" behavior so operators can service/remove internal parts.
The exact sensor type (encoder, distance sensor, proximity switch, etc.) is TBD. In particular, sensor hardware implementation is expected to involve ODM/suppliers such as J-Pro.
Colour key & components
Sensing options (TBD).
Colour(s)
Component
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Cycle/yoke sensor — encoder, proximity switch, or other sensor to identify cycle position; may share hardware with stop-with-peelers-open logic.
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Coded safety switches — lid interlocks provide "open" status and inhibit running.
Figures
Add sensor location diagrams when mechanism is selected. (No sensor images are committed yet.)
Recommended figures (contractor clarity)
Add figure: proposed sensor mounting location on yoke/cam/shaft and target features.
Stop-with-peelers-open interlock — sensor/logic should prevent operation (or force stop) when peelers are open / unsafe state.
Cycle counting — provide cycle count per time period for operations monitoring. May share sensor hardware with safety stop logic.
Fully open stop on normal shutdown — when the machine is turned OFF / STOPPED in normal operation (not E-stop, not lid-interlock fault), the drivetrain should stop and the yoke must end in the fully open position so plungers/peeler-related parts can be removed safely.
Emergency stop / interlock behavior — when E-stop is pressed or when a coded lid safety switch indicates an open lid, the machine must shut down immediately (no reposition-to-open requirement).
Known issues & risks
Washdown — sensor and wiring must be water protected and robust to cleaning chemicals.
Signal integrity — vibration and contamination can cause false triggers; choose sensor type and mounting accordingly.
Questions for contractor
Recommend a sensor approach (encoder vs proximity vs limit) and mounting that is robust in washdown/vibration.
Define how the sensor will be used for safe stop and cycle counting, including failure detection (fail-safe behavior).
Propose the mechanism for identifying the fully open yoke end position (distance sensor target vs rotary encoder reference mark) and how calibration is performed after maintenance.
Describe how sensor signals interface to the existing control boards and how/when J-Pro (ODM) is expected to supply the sensing solution.
Interfaces
Input: mechanical motion (yoke/cam/shaft position) and safety switch states.
Output: cycle count and/or position signal to controller; inhibits running when unsafe.
Mount: near drivetrain/transmission mechanism; cable routing to control cabinet.
Interfaces and tolerances
Interfaces (tolerances TBD; contractor to propose).
Part
Interface / tolerance
Related
Cycle/yoke sensor
Mounting and sensing target TBD; must be washdown-safe and vibration robust