OPBA2QD BANNER ENGINEERING, OPBA2QD Datasheet - Page 6

• Manufacturer Part Number: OPBA2QD
• Description: POWER BLOCK
• Manufacturer: BANNER ENGINEERING

Specifications of OPBA2QD

• Accessory Type: Power Block
• Function: Module, Power Block
• Technology: Photoelectric
• For Use With: OMNI-BEAM Sensors
• Lead Free Status / Rohs Status: RoHS Exempt Product

OMNI-BEAM Sensor Heads
The Sense LED indicates when a target has been sensed. When the sensor head is
programmed for Light Operate, it lights when the received light signal exceeds the #5
threshold. When programmed for Dark Operate, it lights when the received light
signal falls below the #5 threshold. See figure 7.
The Load indicator LED lights whenever the output is energized (after the timing
function, if applicable).
OMNI-BEAM’s D.A.T.A. indicator display may be used to measure the excess gain and
contrast during sensing, installation, or maintenance.
Excess gain is a measurement of the amount of light energy falling on a photoelectric
sensor’s receiver, over and above the minimum amount needed to operate the
sensor’s amplifier. Excess gain is expressed as a ratio:
The amplifier threshold is the point at which the sensor’s output switches
(corresponding to the #5 level of the D.A.T.A. display). When LEDs #1 through #5 are
ON, the excess gain of the received light signal is equal to “1x.” The chart below
shows how excess gain relates to the D.A.T.A. light array indication.
page
Sense and Load LED Indicators
Measuring Excess Gain
Relationship Between Excess Gain and D.A.T.A System Lights
6
D.A.T.A. Light
LED Number
Excess gain (E.G.) = light energy falling on receiver
#10
#1
#2
#3
#4
#5
#6
#7
#8
#9
3.7x
0.25x
0.35x
Excess Gain
0.5x
0.7x
1.0x
1.3x
1.7x
2.2x
2.9x
Scale Factor
amplifier threshold
STANDARD
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
(or more)
2.2x
Excess Gain
0.5x
0.7x
0.8x
0.9x
1.0x
1.1x
1.2x
1.3x
1.7x
Scale Factor
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
Excess Gain
FINE*
(or more)
Figure 7. Sense and Load indicators