104419 Rev 02Cutler-Hammer
Instruction Manual—80 Series Photoelectric
8282A Retriggerable One-Shot Logic Card
INTRODUCTION
The 8282A is an optional logic card for the 80 Series Control
Modules. The 8282A provides a nonretrig-gerable, one-shot
timer pulse, adjustable in three ranges.
By themselves, the control modules allow only a simple on-off
control action through either a triac output or NPN transistor.
Control actions take many forms; start up and shut down
sequences, counting, sorting, or jam detection are some of the
possibilities. The on-off state of the control module’s output
depends on the status of the infrared light beam established by
a sensor head. The light beam is either complete (LT) or
blocked(DRK).
The addition of a one-shot timer pulse to a control module’s
operation allows a control action to be carried on for a preset
period of time. A nonretriggerable one-shot pulse, once started
by a LT/DRK change, will run through its preset time period
regardless of any further LT/DRK changes.
INSTALLATION
1. Remove the sensor head if installed.
2. Remove the pin guide.
3. Set the appropriate switches for the timing range and
triggering mode desired (see Controls and Adjustments).
4. Orient the logic card so that the adjustment
potentiometer(s) face out.
5. Slide the logic card all the way into the control module and
replace or install the sensor head. Be sure that the sensor
head’s bayonet pins line up properly with the logic card’s
receptacles. The logic card is connected to the control
module’s circuit only when the sensor head is plugged in.
6. Adjustment within the timing range selected can now be
made via the potentiometer(s) on the logic card.
SPECIFICATIONS
Input Power:
Supplied only by the 80 Series Control Modules; do not
connect the one-shot card to external power.
Timing Range:
5 mS to 2.5 seconds in two ranges:
Range 1 ......................................................... 10 mS to 200 mS
Range 2 ................................................ 100 mS to 2.5 seconds
Power Up Initialization:
The 8282A one-shot can be prevented from triggering on
power up for a period of 0.4 to 27 seconds, user adjustable.
Note - For all Series 80 control modules, the output(s) are
inactive (open) for 100 to 300 mS after power is applied
regardless of control settings or the light beam’s status.
Environmental:
Operating Temperature................. -40°to131°F (-40° to 55° C)
Storage Temperature .................. -40° to167° F (-40° to 75° C)
Operating Humidity...............................95% Relative Humidity
Storage Humidity .........................95% Relative Humidity, Max.
Mechanical:
Construction - The 8282A consists of a single PCB assembly
configured to interface with the Series 80 sensor system.
Vibration - 5 G or 0.06 inch displacement, whichever is less,
over a frequency range of 10 Hz to 2000 Hz
6
5
Potentiometers
This side in
3Timing Range
and Triggering
Mode Switches
