CR3RA Banner Engineering Corp., CR3RA Datasheet - Page 5

• Manufacturer Part Number: CR3RA
• Description: Maxi-amp? Cr Series Modulated Amplifer Modules For 100 Series Sensors
• Manufacturer: Banner Engineering Corp.

Amplifier Programming (all models)
Amplifier response conditions may be programmed via the group of
four switches located on one of the narrow sides of the MAXI-AMP
module.
Switch #1 selects the amount of amplifier hysteresis. Hysteresis is
the amount of signal change beyond the switching threshold which is
required to cause the amplifier output to change state, and is expressed
as a percent of amplifier gain. The NORMAL setting of 20% should
always be used, except for low contrast situations such as many color
registration applications.
Timing Logic Programming (CR5 models)
Settings illustrated below are factory settings. Factory settings are "underlined" in the table.
A group of ten switches, located on the side of the module opposite the amplifier program
switches, is used to select the timing logic for the CR5 models.
Switches #1 through #7 are used to select the logic function. Switch #8 programs the
output for either NORMALLY OPEN or NORMALLY CLOSED operation. Switches #9
and #10 program the time range(s). There are three ranges: 10 to 150 milliseconds, 0.1 to
1.5 seconds, and 1 to 15 seconds. The programmed range will be the same for both func-
tions of a dual timing mode (ON & OFF DELAY, DELAYED ONE-SHOT, and REPEAT
CYCLE). However, DELAY and HOLD times are independently adjustable within the
selected range.
Factory settings shown at
left. "Underlined" settings
in table below are factory
settings.
NOTE: the LOW hysteresis setting should be used only when all
sensing conditions remain stable. "Buzzing" of the output (in ON/OFF
and LIMIT operation) or false outputs (in DELAY, ONE-SHOT, or
LATCH operation) may occur if sensing variables (e.g.- web flutter)
result in optical contrast approaching unity.
Switches #2 and #3 are used to program the amplifier response
time. The 10 millisecond setting should be used whenever possible
for the greatest immunity to electrical interference ("noise"). The
2 millisecond setting has more interference rejection than the 0.3
millisecond mode. Sensor performance (excess gain) is identical in
all three response settings.
Switch #4 is used to select LIGHT OPERATE or DARK OPER-
ATE. In the LIGHT OPERATE mode, the output will energize
(in ON/OFF or LATCH operation) or the timing function will
initiate (in DELAY, ONE-SHOT, or LIMIT operation) when
the receiver "sees" sufficient light (excess gain greater than
1X). In DARK OPERATE, the output will energize or timing
will begin when the receiver is sufficiently dark (excess gain
less than 1X).
The diagram at the left shows the location of switches 1-4, and
the table summarizes the settings required for each response
condition.
NOTE: an adhesive-backed mylar label is supplied, which may
be marked to indicate switch programming and then applied to
the MAXI-AMP housing as a switch cover.
The diagram shows switch locations, and
the table summarizes the program switch
positions.
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