Overview
The solid-state output interfaces to a system controller, which is pre-programmed for a specific sequence of tasks. Mounted in or near
each bin in an assembler’s work station, the sensor job light signals the assembler:
• Which bins contain items to be picked in a given operation; and
• In what order they should be picked.
As the assembler takes a part in sequence, the sensor senses that the part was removed and it sends an output signal to the controller.
The controller then verifies if the correct part was taken and may respond by turning that job light OFF, activating the job light of the next
bin in the sequence.
If multiple parts are to be removed from one bin, the job light may remain ON until the appropriate number of signals is returned to the
controller. If an incorrect part is selected, the control system may be wired to signal an alarm for the assembler and/or a supervisor, or it
may be programmed to interpret the action as a call for parts.
Fixed-field and retroreflective-mode models require no interaction to operate, and so eliminate the hand, wrist, and arm stresses associ-
ated with mechanical push buttons. All models are immune to EMI, RFI, and ambient light interference. The polycarbonate and nylon
housing is capable of absorbing high impact (even at low temperatures) and is resistant to abrasion and to damage by most chemicals.
Its domed construction allows moisture and debris to slide easily off the sensor housing, simplifying maintenance. The 30 mm threaded
base provides easy mounting.
Indicator and Output Behavior
NOTE: "C3" and "C4" models as referenced in the table pertain to a part of the product model number, imme-
diately preceding the QPMA designation.
Sensor Conditions
Job Light
Output Signal
Status
C3 Models
C4 Models
Job input active Hand/pick absent
ON Green
ON Green
OFF
Hand/pick present
ON Yellow
ON Yellow until job input is removed
ON
No job input
Hand/pick absent
OFF
OFF
OFF
Hand/pick present
ON Red
ON Red for 5 seconds after hand/pick is removed
ON
EZ-LIGHT K50 and K80 Specialty — 3-Color
2
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