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| 型号： | E39-L52 |
| 厂商： | Omron Electronics Inc-IA Div |
| 文件页数： | 10/11页 |
| 文件大小： | 0K |
| 描述： | BRACKET FOR E3SA |
| 标准包装： | 1 |
| 系列： | * |
| 其它名称： | E39L52 |
E3SA
I ADJUSTMENTS
For Through-Beam and Retroreflective Sensors
E3SA
Using Indication:
Mount the emitter or reflector, then loosely
mount the receiver. Aim the receiver to get
the maximum brightness on the Light
Indicator. Adjust the Sensitivity Control
(gain) to maximize the brightness. Then
securely mount the receiver to maintain
the position.
Using Analog Output:
Use an ammeter to measure the milliamp
current output from the sensor. Mount the
emitter or reflector, then loosely mount the
For Diffuse Reflective Sensors
Using Indication:
Securely mount the diffuse reflective or
mark detecting sensor, or diffuse reflective
fiber-optic sensing head. Place the object
to be detected at the position where
detection should occur. Adjust the
Sensitivity Control (gain) to the point
where the Operation Indicator lights. Then
fine-tune the gain to maximize the
brightness of the Light Indicator.
receiver. Aim the receiver to get the
maximum analog output (20 mA). Move
the receiver up and down, left to right to
determine the area that produces
maximum output. Aim the receiver in the
center of that area then securely mount
the receiver to maintain the position.
Adjust the gain using the Sensitivity
Control to produce 20 mA or the desired
maximum current output.
To ensure proper adjustment for best
sensitivity, be certain that the current has
not become saturated above the 20 mA
Using Analog Output:
Securely mount the diffuse reflective or
mark detecting sensor, or diffuse reflective
fiber-optic sensing head. Use an ammeter
to measure the milliamp output from the
sensor or E3XA amplifier. Place the object
to be detected at the position where
detection should occur. Adjust the gain
using the Sensitivity Control to produce
maximum limit. This makes normal
detection impossible because the
deviation of output at saturation becomes
too small for differentiation.
The Easy Method:
The simple way is to use the Operation
Point control. Set the operating point at 20
mA (fully clockwise), then search for the
position that turns on the Operation
Indicator.
20 mA or the desired maximum current
output.
To ensure proper adjustment for best
sensitivity, be certain that the current has
not become saturated above the 20 mA
maximum limit. This makes normal
detection impossible because the
deviation of output at saturation becomes
too small for differentiation.
I INFLUENCE OF FLUORESCENT LIGHTING
Do not allow direct exposure of fluores-
cent light on the receiver (through-beam
types) or emitter/receiver (reflective
types). This may have adverse affects on
the analog output current.
When mounting the sensor, keep the
angle formed between the light of the
fluorescent lamp and the optical axis of
the sensor at more than 15 degrees.
I AMPLIFIER OUTPUTS
Analog Output
Set the analog output by allowing a
hysteresis of more than 2% full scale
(about 0.3 mA), also taking into account
CORRECT
Logic (On/Off) Output
The differential for the discrete On/Off
logic output is set at about 2 mA. Output
short-circuit protection is provided.
INCORRECT
the effects of external fluctuations. This
effect is already taken into account when
using S3A-D and S3A2 analog sensor
controllers.
11
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