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Common Circuits
Standard Hookup
Parallel Ac
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Parallel Logic Dc
Pulsed Alarm

[Include all short dark time application information on a single page?]

Short Dark Time

Counters require an energized signal for a certain amount of time to operate. For example, pencils on a conveyor are too small to provide enough dark time for the control to operate an electric counter.

Pencils move on the conveyor at 125 feet per minute, which affords 0.010 seconds dark time and 0.250 seconds light time. However, through a time delay, the photoelectric timing control borrows from the light time, increasing the 0.010 second dark time to 0.050 seconds, ample to operate the counter.

Notes

  • Objects to be counted must still interrupt the light beam for not less than the minimum dark time specified for the photoelectric control circuit.

Products

Photoelectric (CPF303)
Off Delay (T360)
Sensor (EAP30)
Source (EL30)

Technology

Signal Loss Hold
Photoelectric

Other Applications

Die Casting
Stack To Size
Trash Compactor
Automatic Pallet Wrapping
Showers
Jam Up Without Reflectors
Conveyor Jam Up
Parts Reflect Beam
Parts Interrupt Beam
Metal Parts Though Chute
Converging Conveyors
Photo Finish
Winding Roll To Length
Cut To Length
Shaft Rpm
Spacing Glue Deposits
Fill By Weight
Carton Sealing
Page Skew
Symmetrical Tubes
By Time
Register Marks
Transparent Objects
High Speed Steel Sheets
High Speed Small Objects
Small Gap Between Parts
Product Inspection
Protruding Loose Parts
Automatic Extruder
Fixed Ejection Path
Dish Inspection
Automatic Spraying
Machine Processing Check
Wire Break Detection
Tear Detection
Heavy Rubber Sheet
Wide Cloth

Autotron Group, Elwood Corporation Wisconsin, USA. telephone: 1-414-764-7500