LG2-AB-AC100 - Omron - Product.Network

CSM_LG2_DS_E_2_1

Voltage Sensor

LG2

Compact, Economical Plug-in Type Voltage

Sensing Relay

• DPDT output contacts expand the application of the Sensor to

wide-ranging fields including control, alarms, and indication.

• Voltage control is possible in the same easy manner as electro-

magnetic relays, as the output relay of the sensor can be driven

directly with a detection signal.

• Wide voltage setting range with fine setting capability.

Model Number Structure

■Model Number Legend

1. Voltage sensor

2, 3. Operating Voltage

AB: 100, 110, 200 VAC

DB: 12, 24, 48, 100 VDC

Ordering Information

■List of Models

■Connecting Socket

Note: Use the above sockets to mount the Voltage Sensor securely

and prevent problems, such as faulty contact.

132

LG2-@@

Detected voltage Model

AC LG2-AB (100 VAC)

LG2-AB (200 VAC)

LG2-AB (110 VAC)

DC LG2-DB (12 VDC)

LG2-DB (24 VDC)

LG2-DB (48 VDC)

LG2-DB (100 VDC)

Socket Bracket

Type Model Model

Front-mounting socket PF083A PFC-A7

Back-mounting socket PL08 PLC-8

LG2

Specifications

■Ratings

Note: 1. Set the must-operate voltage higher than the must-release voltage by at least 5% of the rated value.

2. Smoothing is required for the detected DC voltage.

3. The maximum applied voltage is 120% of the rated value.

4. Special models enabling a rated voltage of 220 V are available. The setting range for these models is 80% to 110%.

■Characteristics

Item Detected voltage Load Setting range Control output

Model

Rated voltage Power/VA

consumption

Must-operate

(SET) voltage

(percentage

of rated

value)

Must-release

(RESET)

voltage

(percentage

of rated

value)

Rated carry

current

Switching capacity

Rated

operating

voltage

Rated operating current

Resistive

load

(cosφ = 1)

Inductive

load

(cosφ = 0.4,

L/R = 7 ms)

LG2-AB 100 VAC

200 VAC

50/60 Hz

5 VA max. 75% to 120% 70% to 115% 5 A 100 VAC

200 VAC

28 VDC

110 VDC

0.2 A

1.2 A

0.1 A

110 VAC

50/60 Hz

80% to 110% 75% to 105%

LG2-DB 12 VDC

24 VDC

48 VDC

100 VDC

3 W max. 75% to 120% 70% to 115%

Repeat accuracy ±3% max. (with voltage fluctuations at the rate

of 1 V/s)

Variation due to

temperature

change

±5% max. (within the range 20 °C +20/−30 °C)

Operate time 0.5 s max. (when input changes from 0 V to

120% must-operate voltage)

Release time 0.5 s max. (when input changes from 120% of

the must-release voltage to 0 V)

Insulation

resistance

10 MΩ min. at 500 VDC (between electric

circuitry and mounting panel)

Dielectric strength 2,000 VAC, 50/60 Hz for 1 min (between electric

circuitry and mounting panel)

Vibration Malfunction: 16.7 Hz, 1-mm double amplitude

Shock Destruction: 294 m/s2 (approx. 30 G)

Service life Mechanically:

10,000,000 operations min.

Electrically:

50,000 operations min. (at max. applicable

load)

Weight Approx. 100 g

Ambient

operating

temperature

−10 to 40°C (with no condensation)

LG2

Connections

■Terminal Arrangement

Note: 1. *Type LG2-DB is not equipped with the rectifier circuit.

2. With type LG2-DB, care should be taken to the polarity of

the power supply.

Nomenclature

Setting Method

Operate Value

Input the actual voltage to be set, and set the SET knob to the point

at which the Relay operates.

Release Value

•With the Relay operating, turn the RESET knob counterclockwise

as far as it will go, and adjust the voltage to the value to be set.

Then, gradually turn the RESET knob clockwise until it reaches the

point where the Relay is released.

Note: After completing the settings, check the settings for the operate

and release values by increasing/decreasing the input voltage.

•The LG2 can be used for undervoltage detection by using the

RESET knob for the operate value and the SET knob for the

release value. The Relay will normally be ON, however, and so the

internal temperature will rise, and this will affect the product service

life.

4 5

(+) (−)

The polarity indication for

terminals and applies

to the DC model (LG2-DB).

(The above diagram shows

the rear side of the Relay.)

(The above diagram shows

the rear side of the Relay.)

LG2-DB

12VDC

VOLTAGE SENSOR

VOLTAGE

RESET

70to115%

SET

70to120%

RESET knob SET knob

LG2

Dimensions

Note: All units are in millimeters unless otherwise indicated.

LG2-AB, LG2-DB

Accessories (Order Separately)

Connecting Socket

Socket Mounting Track (for PF083A) Hold-down Clip

Use the Hold-down Clip to secure the Voltage Sensor on the Con-

necting Socket, as well as to prevent faulty contact.

50.5 max.

38.5 max. 13.6

(101)

PF083A (order separately)

PF08 (order separately)

108.4

LG2 92.4

LG2

Mounting Height of

Sensor with Socket

35.4

23.5

21 max.

Two, 4.2-dia.

holes

41 max.

52 max.

Eight, M3.5 × 7

sems screws

2 1 8 7

3 4 5 6

Two, M4 or 4.5-dia. holes

33±0.2

Applicable Models

APR-S

LG2

PF083A Front Connecting Socket Terminal

Arrangement

(Top View)

Mounting

Holes

Note: Mount sockets to applicable models

so that points downwards.

Applicable Models

APR-S

SDV

LG2

SAO

3.5

50.5 max.

35 max.

Approx. 20.5

Two, 2-dia. holes

3.9

30 dia.

31-dia. hole

40±

0.3

Two, 3.5-dia. or two, M3

socket mounting holes

PL08 Back Connecting Socket (Solder Terminals)

Terminal

Arrangement

Mounting

Holes

(Top View)

4.5

15 15 (5)*

7.3±0.15

35±0.3 27±0.15

10 1025 25 2525

1,000 (500)*

PFP-100N/PFP-50N Socket Mounting Track

* The dimensions given in parentheses are for the PFP-50N Socket Mounting Track.

Type of Socket Applicable type of

Hold-down Clip

PF083A PFC-A7

PL08 PLC-8

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Read and Understand This Catalog

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or

comments.

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)

from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR

FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS

DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER

WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS

IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT

LIABILITY.

In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS

OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT

SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's

application or use of the products.

At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the

products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,

machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible

uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:



Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.



Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,

safety equipment, and installations subject to separate industry or government regulations.



Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE

SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND

INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

Disclaimers

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.

However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or

establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual

specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

PERFORMANCE DATA

Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the

result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON

Warranty and Limitations of Liability.

ERRORS AND OMISSIONS

The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,

typographical, or proofreading errors, or omissions.

2012.2

In the interest of product improvement, specifications are subject to change without notice.

OMRON Corporation

Industrial Automation Company

http://www.ia.omron.com/