LG2
Specifications
■
Ratings
Item Detected voltage
Rated voltage
Load
Setting range
Rated carry
current
Control output
Switching capacity
Rated
operating
voltage
Rated operating current
Resistive
load
(cosφ = 1)
5A
2A
5A
0.2 A
Inductive
load
(cosφ = 0.4,
L/R = 7 ms)
3A
1.2 A
2A
0.1 A
Power/VA
Must-operate Must-release
consumption (SET) voltage
(RESET)
(percentage
voltage
of rated
(percentage
value)
of rated
value)
5 VA max.
75% to 120%
70% to 115%
Model
LG2-AB
100 VAC
200 VAC
50/60 Hz
110 VAC
50/60 Hz
LG2-DB
12 VDC
24 VDC
48 VDC
100 VDC
3 W max.
5A
100 VAC
200 VAC
28 VDC
110 VDC
80% to 110%
75% to 120%
75% to 105%
70% to 115%
Note: 1.
2.
3.
4.
Set the must-operate voltage higher than the must-release voltage by at least 5% of the rated value.
Smoothing is required for the detected DC voltage.
The maximum applied voltage is 120% of the rated value.
Special models enabling a rated voltage of 220 V are available. The setting range for these models is 80% to 110%.
■
Characteristics
Repeat accuracy
Variation due to
temperature
change
Operate time
Release time
Insulation
resistance
±3%
max. (with voltage fluctuations at the rate
of 1 V/s)
±5%
max. (within the range 20
°C
+20/−30
°C)
0.5 s max. (when input changes from 0 V to
120% must-operate voltage)
0.5 s max. (when input changes from 120% of
the must-release voltage to 0 V)
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
Shock
Service life
Malfunction: 16.7 Hz, 1-mm double amplitude
Destruction: 294 m/s
2
(approx. 30 G)
Mechanically:
10,000,000 operations min.
Electrically:
50,000 operations min. (at max. applicable
load)
Approx. 100 g
−10
to 40°C (with no condensation)
Weight
Ambient
operating
temperature
2
LG2
Connections
■
Terminal Arrangement
4
3
2
1
8
5
6
7
3
2
1
8
4
5
6
7
(+)
(−)
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.)
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
VOLTAGE
SENSOR
LG2-DB
RESET knob
RESET
70to115%
VOLTAGE
SET
75to120%
12VDC
SET knob
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.
3
LG2
Dimensions
Note:
All units are in millimeters unless otherwise indicated.
LG2-AB, LG2-DB
Mounting Height of
Sensor with Socket
50.5 max.
LG2
107
38.5 max.
86
91
LG2
13.6
16
PF08 (order separately)
PF083A (order separately)
Accessories (Order Separately)
Connecting Socket
PF083A Front Connecting Socket
Eight, M3.5
×
7
sems screws
7
4
Terminal
Arrangement
2 1 8 7
35.4
Mounting
Holes
Two, M4 or 4.5-dia. holes
Applicable Models
APR-S
LG2
Two, 4.2-dia.
holes
52 max.
33±
0.2
Note:
Mount sockets to applicable models
so that
points downwards.
4
33
41 max.
3.5
2
21 max.
3 4 5 6
(Top View)
PL08 Back Connecting Socket (Solder Terminals)
3.5
4
1
Terminal
Arrangement
Two, 2-dia. holes
Mounting
Holes
Two, 3.5-dia. or two, M3
socket mounting holes
4
3
2
1
5
6
7
8
50.5 max.
40
30 dia.
3.9
35 max.
Applicable Models
SE
APR-S
SDV
LG2
SAO
40±
0.3
31-dia. hole
Approx. 20.5
(Top View)
Socket Mounting Track (for PF083A)
PFP-100N/PFP-50N Socket Mounting Track
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.
Type of Socket
Applicable type of
Hold-down Clip
PFC-A7
PLC-8
7.3±
0.15
PF083A
PL08
4.5
15
25 10 25
1,000 (500)*
25 10 25
15 (5)*
35±
0.3
27±
0.15
1
* The dimensions given in parentheses are for the PFP-50N Socket Mounting Track.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply
by
0.03937. To convert grams into ounces, multiply
by
0.03527.
In the interest of product improvement, specifications are subject to change without notice.
4
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or contact your Omron representative for published information.
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Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
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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 part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application.
Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.10
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2015 All Right Reserved.
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