E3X-NH21 Omron, E3X-NH21 Datasheet

SENSOR PHOTO AMP FIBEROPTC W/TMR

E3X-NH21

Manufacturer Part Number
E3X-NH21
Description
SENSOR PHOTO AMP FIBEROPTC W/TMR
Manufacturer
Omron
Series
E3X-NHr
Type
High Precision Fiber Optic Amplifierr
Datasheet

Specifications of E3X-NH21

Amplifier Type
Timer Function
Voltage - Supply
12 V ~ 24 V
Output Type
NPN
Current - Supply
75mA
Mounting Type
DIN Rail
Features
Three mode for optimal sensing
Light Source
Red LED
Connection
Pre-leaded
Output Configuration
NPN
Lead Free Status / RoHS Status
Contains lead / RoHS compliant by exemption
Lead Free Status / RoHS Status
Contains lead / RoHS compliant by exemption, Lead free / RoHS Compliant
Other names
E3XNH21
Z1112
The E3X-NH Employs a 16-Bit
Processor as An Industry First
H
H
H
H
H
H
Ordering Information
J AMPLIFIER UNITS
2
Description
Output
Part number
Appearance
Light source (Wave length)
Power supply voltage
Current consumption
Output
Response time
Sensitivity setting
Fine sensitivity adjustment
High-Precision Fiber-optic Amplifier
An Automatic Sensitivity Adjustment
feature allows stable detection of
objects in frequently changing
environments
Three teach modes for optimal sensing
8-point scaled sensitivity meter is ideal
for high precision sensing and
through-beam applications at long
distances (and clearly displays a
target’s reflectivity level)
A manual fine tuning sensitivity feature
allows 13 threshold adjustments using
an easy-to-read digital scale
Ideal for detecting small objects or fine
wires
NPN/PNP types available
Control
output
Alarm output
R
General-purpose models
NPN
E3X-NH11
Red LED (680 nm)
12 to 24 VDC ±10%, ripple (p-p) 10% max.
75 mA max.
NPN open collector,
load current: 50 mA
max residual voltage:
max., residual voltage:
1 V max.
1 ms max. for turn-on and turn-off, respectively
Teaching method
Automatic or manual fine threshold adjustment (13 levels)
PNP
E3X-NH41
PNP open collector,
load current: 50 mA
max residual voltage:
max., residual voltage:
1 V max.
Timer-function models
NPN
E3X-NH21
NPN open collector,
load current: 50 mA
max residual voltage:
max., residual voltage:
1 V max.
E3X-NH
PNP
E3X-NH51
PNP open collector,
load current: 50 mA
max residual voltage:
max., residual voltage:
1 V max.

Related parts for E3X-NH21

E3X-NH21 Summary of contents

Page 1

... Sensitivity setting Teaching method Fine sensitivity adjustment Automatic or manual fine threshold adjustment (13 levels) 2 Timer-function models PNP NPN E3X-NH41 E3X-NH21 PNP open collector, NPN open collector, load current load current max residual voltage: max., residual voltage: max., residual voltage: max residual voltage max ...

Page 2

... Z directions 20 MΩ min. (at 500 VDC) 2 500 m/s (approx. 50G) for 3 times each and Z axis IEC IP50 2m cable PBT Polycarbonate Approx. 100 g Mounting brackets (included) E3X-NH Timer-function models E3X-NH21 E3X-NH51 NPN PNP 40 ms off delay 2 (approx. 30G) for 2 hrs each and 3 ...

Page 3

... UP/DOWN Selector Select UP for increasing the threshold value. Select DOWN for decreasing the threshold value. Operation Mode Selector Switchable between light-ON and dark-ON modes. Operation J OUTPUT CIRCUITS E3X-NH11 (NPN output) Photo- electric sensor main circuit J OPERATION MODE Light-ON Light received Light not received ...

Page 4

... Environments Reason Dust sticking to the fiber tip. Targets are slightly different from each other in color or surface quality. Detecting Passing Chip Parts E3X-NH E32-L25A E3X-NH 3.3 mm Auto-tuning (Automatic Sensitivity Compensation) E3X-NH Sensitivity Setting Without Objects Application Examples Detection of minute passing ob- jects. Detection of lead wires. ...

Page 5

... E3X-NH J SENSITIVITY SETTING (TEACHING) The sensitivity of the E3X-NH is factory-set to maximum. When resetting the sensitivity of the E3X-NH to maximum after with/without-ob- ject teaching or positioning/no-object teaching, follow the steps described below. Maximum Sensitivity Setting 1. Set the mode selector to TEACH. Hold the SET button down for three seconds. Be sure that all the threshold indicators (red) are lit ...

Page 6

... Be sure that all the threshold indicators (red) are lit. The built-in buzzer will beep once when the threshold indicators are lit. 2. Set the mode selector to RUN. The threshold is set automati- cally. Mark 3. The Sensor will automatically compensate for environmental changes. E3X-NH Press once for 0 ...

Page 7

... Manual-tuning (Fine Sensitivity Adjustment) Note: The auto-tuning function will be disabled if manual-tuning is utilized. 1. After setting the sensitivity of the E3X-NH, select the adjust- ment direction with the UP/DOWN selector in the ADJ mode. (2) (1) 2. Press the SET button in ADJ mode. Be sure that the threshold-level changes whenever the SET button is pressed. If two threshold indicators are lit, the threshold will automatically be set to a middle value equal to the target’ ...

Page 8

... RUN/ADJ Mode The number of the incident level indicators lit depends on the position of the target. When using the manual-tuning function possible to adjust the threshold in six levels. The default threshold is set to 7. Fiber head E3X- Farther Target Threshold Light Incident Threshold level ...

Page 9

... Press the SET button without target in the sensing area. Set the threshold to the value that is ±6% of the incident level. Farther Light Closer 2. Detecting the first object in RUN/ADJ mode. Farther Light Closer 18% Tuning range 18% E3X-NH Threshold 6% 6% Incident level without a fixed Threshold background or target. Incident Threshold level indicator indicator 18% 6% ...

Page 10

... After the threshold has been compensated, the Threshold Indicator will flash, indicating the adjusted value. • Threshold compensation occurs 10, 15, 22, and 30 minutes after turning on the E3X-NH. After the initial 30 minute time- • frame, Threshold Compensation is continually repeated, every 30-minutes. Alarm output will occur if the threshold compensation range is not within the tuning range. Perform sensitivity setting again if the alarm • ...

Page 11

... Standard length Weight: Approx. 100 g 12 Operation indicator Threshold indicators (A) (see note) Incident level indicators Two, 2.4 dia. Two, 3.2-dia. holes E3X-NH Note: The mounting bracket can be at- tached to this side. Mounting bracket Two, mounting holes ...

Page 12

... J FIBER CONNECTION OR DISCONNECTION PROCEDURES The E3X-NH Amplifier has a lock button. Follow these steps to connect or disconnect the fibers to (or from) the E3X-NH Amplifier: Note: The fiber must be locked or released in a temperature range of --10° ...

Page 13

... Observe the Following Precautions when Using the Reflector (E39-R3) Use detergent, etc., to remove any dust or oil from the surfaces where tape is applied. Adhesive tape will not be attached properly if oil or dust remains on the surface. The E39-R3 cannot be used in places where it is exposed to oil or chemicals. E3X- ...

Page 14

... DIN rail. This could decrease the mount- ing strength of the Amplifier Unit. (2) (1) DIN Rail Removal You can remove the Amplifier in one easy step: 1. Press the Amplifier Unit in direction (A) and lift the fiber inser- tion part in direction (B) as shown here (B) DIN Rail (A) E3X-NH 15 ...

Page 15

... Note that this will not have an effect on performance since no control output will be generated. Perform two-point teaching if two to three Fiber Units are closely mounted together, at which time supply power only to the Unit in teaching operation in turn or block the emitters of the Fiber Units not in teaching operation. E3X-NH Fiber Unit ...

Page 16

... Do not assume that all Units ensure such operations. J WHEN THE POWER IS OFF The moment power is turned off, the E3X-NH may output a pulse signal which could affect the operation of the devices connected to it. This will occur more often if power is supplied to the E3X-NH from an external power supply, thus affecting the connected timer or counter ...

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