E3S-CR11 Omron, E3S-CR11 Datasheet - Page 12

• Manufacturer Part Number: E3S-CR11
• Description: Industrial Photoelectric Sensors POLAR RETROREFLECTIV
• Manufacturer: Omron
• Type: Long Range Metal Body Sensorr
• Series: E3S-Cr

Specifications of E3S-CR11

• Features: Mutual interference protection
• Height: 29.5 mm
• Length: 50 mm
• Maximum Operating Temperature: + 55 C
• Minimum Operating Temperature: - 25 C
• Operating Supply Voltage: 10 V to 30 V
• Width: 40.4 mm
• Sensing Distance: 3000 mm
• Output Configuration: NPN or PNP
• Sensing Range: 0m To 3m
• Output Current: 100mA
• Supply Voltage Range Dc: 10V To 30V
• Sensor Housing: Rectangular
• Sensor Input: Optical
• Sensing Range Max: 3m
• Switch Terminals: Wire Leaded
• Svhc: Bis (2-ethyl(hexyl)phthalate) (DEHP) (15-Dec-2010)
• Output Type: NPN / PNP Selectable
• Response Time: 1ms
• Svhc (secondary): Benzyl Butyl Phthalate (BBP) (15-Dec-2010)
• Rohs Compliant: Yes
• Connector Type: 2m Cable
• Current Consumption: 40mA
• External Depth: 50mm
• External Length / Height: 23mm
• External Width: 20.4mm
• Ip/nema Rating: IP67
• Sensing Method: Retroreflective, Polarized
• Sensing Object: Mirror
• Sensing Light: Red
• Mounting Type: Bracket Mount, Horizontal
• Current - Supply: 40mA
• Voltage - Supply: 10 V ~ 30 V
• Package / Case: Module, Pre-Wired
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

E3S-C
Operation
J FUZZY LOGIC MUTUAL INTERFERENCE PREVENTION FUNCTION
If photoelectric sensors are installed side by side, each Sensor may
be influenced (or malfunction) by the light emitted from the other
sensors. This is known as mutual interference.
The fuzzy logic mutual interference prevention function of the
E3S-C enables the E3S-C to monitor light interference over a cer-
tain period of time. Before the E3S-C starts emitting light, the E3S-C
retrieves the intensity and frequency of surrounding light interfer-
ence as data. Using this data, the E3S-C calculates, with fuzzy infer-
ence, the risk of the E3S-C malfunctioning and controls the timing of
the E3S-C’s light emission.
When the risk is low, the E3S-C waits until there is no light interfer-
ence and emits light.
J SENSITIVITY ADJUSTMENT (REFLECTIVE SENSORS)
Unlike conventional photoelectric sensors, the variation in the sensitivity among several E3S-C photoelectric sensors is minimal. This
means the sensitivity can be adjusted on only a single photoelectric sensor, and then the adjusters on the other E3S-C photoelectric sen-
sors can be set to the same scale position. There should be no need to adjust the sensitivity of each photoelectric sensor individually.
12
Steps
Function
Sensing
condition
Sensitivity
adjustor
Indicators
Procedure
(FOR E3S-CRjj AND E3S-CDjj ONLY)
Step 1
Determine position A
Place target at the desired sensing
distance. Set sensitivity adjuster to the
minimum scale position, and gradually
increase sensitivity by turning the
sensitivity adjuster clockwise until the
Light Incident indicator (red LED)
turns ON. Position A designates the
point at which the LED has turned on.
OFF
Photoelectric sensor
STABILITY
(green)
Min.
A
ON
Max.
LIGHT
(red)
Step 2
Determine position B
Remove the target. Starting from the
maximum scale position, gradually
decrease sensitivity by turning the
sensitivity adjuster counterclockwise
until the Light Incident indicator (red
LED) turns OFF. Position B
designates the point at which the LED
has turned OFF.
OFF
Photoelectric sensor
STABILITY
(green)
Min.
When the risk is high, the E3S-C emits light between each light inter-
ference moment.
OFF
Light interference
Emission pattern
Light interference
Emission pattern
Max.
B
LIGHT
(red)
Step 3
Adjust to optimum setting
Set the sensitivity indicator to the
position between Positions A and B (in
some cases, Positions A and B are
opposite of the above example). The
photoelectric sensor will then work
normally if the stability indicator
(green) is lit with and without the
target. If it is not lit, stable operation
cannot be guaranteed,in which case a
different detection method should be
applied.
OFF
Photoelectric sensor
STABILITY
(green)
Min.
A
ON
B
Max.
LIGHT
(red)
E3S-C