Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

TL-T2E1 Scheda tecnica(PDF) 9 Page - Omron Electronics LLC

Il numero della parte TL-T2E1
Spiegazioni elettronici  Slim Proximity Sensor
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  OMRON [Omron Electronics LLC]
Homepage  http://www.omron.com/index3.html
Logo OMRON - Omron Electronics LLC

TL-T2E1 Scheda tecnica(HTML) 9 Page - Omron Electronics LLC

Back Button TL-T2E1 Datasheet HTML 5Page - Omron Electronics LLC TL-T2E1 Datasheet HTML 6Page - Omron Electronics LLC TL-T2E1 Datasheet HTML 7Page - Omron Electronics LLC TL-T2E1 Datasheet HTML 8Page - Omron Electronics LLC TL-T2E1 Datasheet HTML 9Page - Omron Electronics LLC TL-T2E1 Datasheet HTML 10Page - Omron Electronics LLC TL-T2E1 Datasheet HTML 11Page - Omron Electronics LLC TL-T2E1 Datasheet HTML 12Page - Omron Electronics LLC TL-T2E1 Datasheet HTML 13Page - Omron Electronics LLC Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 14 page
background image
Proximity Sensors Technical Guide
Turning OFF the Power
An output pulse may be generated when the power is turned OFF, so
design the system so that the load or load line power turns OFF first.
Influence of Surrounding Metal
The existence of a metal object other than the sensing object near the
sensing surface of the Proximity Sensor will affect detection perfor-
mance, increase the apparent operating distance, degrade tempera-
ture characteristics, and cause reset failures. For details, refer to the
influence of surrounding metal table in Safety Precautions for individ-
ual Sensors.
The values in the table are for the nuts provided with the Sensors.
Changing the nut material will change the influence of the surrounding
metal.
Power Transformers
Be sure to use an insulated transformer for a DC power supply. Do
not use an auto-transformer (single-coil transformer).
Precautions for AC 2-Wire/DC 2-Wire Sensors
Surge Protection
Although the Proximity Sensor has a surge absorption circuit, if there
is a device (motor, welder, etc.) that causes large surges near the
Proximity Sensor, insert a surge absorber near the source of the
surges.
Influence of Leakage Current
Even when the Proximity Sensor is OFF, a small amount of current
runs through the circuit as leakage current.
For this reason, a small current may remain in the load (residual
voltage in the load) and cause load reset failures. Verify that this
voltage is lower than the load reset voltage (the leakage current is
less than the load reset current) before using the Sensor.
Using an Electronic Device as the Load for an AC 2-Wire
Sensor
When using an electronic device, such as a Timer, some types of
devices use AC half-wave rectification. When a Proximity Sensor is
connected to a device using AC half-wave rectification, only AC half-
wave power will be supplied to the Sensor. This will cause the Sensor
operation to be unstable. Also, do not use a Proximity Sensor to turn
the power supply ON and OFF for electronic devices that use DC half-
wave rectification. In such a case, use a relay to turn the power supply
ON and OFF, and check the system for operating stability after
connecting it.
Examples of Timers that Use AC Half-wave Rectification
Timers: H3Y, H3YN, H3RN, H3CA-8, RD2P, and H3CR (-A, -A8, -AP,
-F, -G)
Countermeasures for Leakage Current (Examples)
AC 2-Wire Sensors
Connect a bleeder resistor to bypass the leakage current flowing in
the load so that the current flowing through the load is less than the
load reset current.
Calculate the bleeder resistance and allowable power using the
following equation.
P
: Watts of bleeder resistance (the actual number of watts
used should be several times this number)
I
: Load current (mA)
It is recommend that leeway be included in the actual values used.
For 100 VAC, use 10 k
Ω or less and 3 W (5 W) or higher, and for 200
VAC, use 20 k
Ω or less and 10 W (20 W) or higher. If the effects of
heat generation are a problem, use the number of watts in
parentheses ( ) or higher.
DC 2-Wire Sensors
Connect a bleeder resistor to bypass the leakage current flowing in
the load, and design the load current so that (leakage current)
× (load
input impedance) < reset voltage.
Calculate the bleeder resistance and allowable power using the
following equation.
P
: Watts of bleeder resistance (the actual number of watts
used should be several times this number)
iR
: Leakage current of Proximity Sensor (mA)
iOFF : Load reset current (mA)
It is recommend that leeway be included in the actual values used.
For 12 VDC, use 15 k
Ω or less and 450 mW or higher, and for 24
VDC, use 30 k
Ω or less and 0.1 W or higher.
R
Vs
(k
Ω)P >
Vs2
(mW)
10 - I
R
R
Vs
(k
Ω)
P >
Vs2
(mW)
iR - iOFFR
R
When using an AC 2-Wire Sensor, connect a bleeder
resistor so that the Proximity Sensor current is at least 10
mA, and the residual load voltage when the Proximity
Sensor is OFF is less than the load reset voltage.
Bleeder resistor R
Load
AC power supply
voltage Vs
Vs
Bleeder resistor R
Load
http://www.ia.omron.com/
C-4
(c)Copyright OMRON Corporation 2008 All Rights Reserved.


Codice articolo simile - TL-T2E1

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Ironwood Electronics.
TL-TORQUEDRIVER-01 IRONWOOD-TL-TORQUEDRIVER-01 Datasheet
16Kb / 1P
   Adjustable torquescrewdriver
TL-TORQUEDRIVER-02 IRONWOOD-TL-TORQUEDRIVER-02 Datasheet
16Kb / 1P
   Adjustable torquescrewdriver
TL-TORQUEDRIVER-03 IRONWOOD-TL-TORQUEDRIVER-03 Datasheet
16Kb / 1P
   Adjustable torquescrewdriver
logo
TAITIEN ELECTRONICS CO....
TL-TYPE TAITIEN-TL-TYPE Datasheet
442Kb / 1P
   5.0 x 3.2 mm SMD Voltage Controlled Temperature Compensated Crystal Oscillator
More results

Descrizione simile - TL-T2E1

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
SICK AG
WTB250-2N1151 SICK-WTB250-2N1151 Datasheet
556Kb / 7P
   Photoelectric proximity sensor, Photoelectric proximity sensor,
WTB250-2N1251 SICK-WTB250-2N1251 Datasheet
556Kb / 7P
   Photoelectric proximity sensor, Photoelectric proximity sensor,
WTB250-2N1131 SICK-WTB250-2N1131 Datasheet
551Kb / 7P
   Photoelectric proximity sensor, Photoelectric proximity sensor,
logo
OSRAM GmbH
SFH7741 OSRAM-SFH7741 Datasheet
334Kb / 17P
   Proximity Sensor
logo
Festo Corporation.
543876 FESTO-543876 Datasheet
82Kb / 2P
   Proximity sensor
546799 FESTO-546799 Datasheet
81Kb / 2P
   Proximity sensor
574380 FESTO-574380 Datasheet
85Kb / 2P
   Proximity sensor
2427615 FESTO-2427615 Datasheet
87Kb / 2P
   Proximity sensor
2427617 FESTO-2427617 Datasheet
81Kb / 2P
   Proximity sensor
2427618 FESTO-2427618 Datasheet
84Kb / 2P
   Proximity sensor
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com