Milnor PulseFlow 76028 G3, Installation And Service

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Proximity Safeguarding for Automatic Shuttle Conveyors
PELLERIN MILNOR CORPORATION
5.1.
Fence Dimensions
—The fence must discourage climbing over and prevent crawling under.
5.2.
Fence Materials and Setback
—The fence must be constructed of materials and located so
as to prevent personnel from reaching through gaps in the fence and contacting the enclosed
machinery.
5.3.
Gates
—Personnel gates must be held firmly closed but permit personnel to easily pass through
when necessary. Gates must be equipped with a positive latching arrangement to prevent
accidental opening. Adequate floor space must be provided to allow the gate to swing at least 90
degrees when fully open. Gates must open outward; that is, away from the fenced perimeter. The
floor must be permanently marked to show the gate’s swing area, to discourage obstructing its
movement.
5.4.
Control Circuitry
—All gates must be electrically interlocked with any shuttle conveyors
within the fenced area and with any presses or centrifugal extractors that the fence either encloses
or intersects. Opening any gate must have the following effects:
1. Shuttle(s), press(es), and/or centrifugal extractor(s) stop moving immediately.
2. An audible alarm sounds.
3. Shuttle(s), press(es), and/or centrifugal extractor(s) cannot be restarted merely by closing the
gate(s), but must be restarted at the machine control panel once the gate(s) are closed.
Milnor shuttles, presses and centrifugal extractors provide such functionality when properly
interfaced with gate interlock switches.
5.5.
System Emergency Stop Switches
—The laundry must establish rules and procedures
that prohibit personnel from remaining within the fenced area with machine(s) enabled, except in
accordance with published maintenance procedures. System emergency stop switches (panic
buttons) should be provided inside and outside the fenced perimeter. Emergency stop switches
should be located so that personnel anywhere inside the fenced perimeter are only a short
distance from a switch, and they should be clearly marked as to their locations and function.
Connect switches in series with the gate interlocks so that pressing an emergency stop switch
performs the same control function as opening a gate.
5.6.
Isolating Individual Machine Controls
—The interlock circuitry for each machine must
be electrically isolated from that of the other machines. Hence, each gate interlock switch must
provide as many pairs of dry contacts as there are machines to interface to. A pair of switch
contacts must never be shared by two or more machines.
5.7.
Recommended Signage
—Safety placards should be posted along the fence and at each
gate, alerting personnel to the hazards within. At minimum, the size of lettering and distance
between placards should be such that anyone contemplating entering the fenced area will likely
see and read the placard first. Wording should be provided in each native language spoken by
laundry personnel.
— End of BISUUI01 —
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