Voltage Sensor LG2 CSM_LG2_DS_E_2_1 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 electromagnetic 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 LG2-@@ 1 1. 2 3 Voltage sensor 2, 3. Operating Voltage AB: DB: 100, 110, 200 VAC 12, 24, 48, 100 VDC Ordering Information List of Models 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) Connecting Socket Socket Type Bracket Model Model Front-mounting socket PF083A PFC-A7 Back-mounting socket PL08 PLC-8 Note: Use the above sockets to mount the Voltage Sensor securely and prevent problems, such as faulty contact. 1 LG2 Specifications Ratings Item Detected voltage Rated voltage Load Setting range Power/VA Must-operate Must-release consumption (SET) voltage (RESET) (percentage voltage of rated (percentage value) of rated value) Control output Rated carry current Switching capacity Rated operating voltage Rated operating current Resistive load (cos = 1) Model LG2-AB 100 VAC 200 VAC 50/60 Hz 5 VA max. 110 VAC 50/60 Hz LG2-DB Note: 1. 2. 3. 4. 12 VDC 24 VDC 48 VDC 100 VDC 3 W max. 75% to 120% 70% to 115% 80% to 110% 75% to 105% 75% to 120% 70% to 115% 5A 100 VAC 200 VAC 28 VDC 110 VDC 5A 2A 5A 0.2 A Inductive load (cos = 0.4, L/R = 7 ms) 3A 1.2 A 2A 0.1 A 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 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 M 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 40C (with no condensation) 2 LG2 Connections Terminal Arrangement 4 5 4 5 3 6 3 6 2 7 2 7 1 1 8 (+) (-) The polarity indication for terminals and applies to the DC model (LG2-DB). (The above diagram shows the rear side of the Relay.) 8 (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 LG2-DB VOLTAGE SENSOR RESET knob SET knob RESET 70to115% SET 70to120% VOLTAGE 12VDC 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 LG2 92.4 108.4 86 (101) 38.5 max. 13.6 16 PF08 (order separately) PF083A (order separately) Accessories (Order Separately) Connecting Socket PF083A Front Connecting Socket Eight, M3.5 x 7 sems screws Terminal Arrangement 4 7 Mounting Holes Two, M4 or 4.5-dia. holes Applicable Models APR-S LG2 2 1 8 7 Two, 4.2-dia. holes 35.4 52 max. 330.2 Note: Mount sockets to applicable models so that points downwards. 4 3.5 33 2 41 max. 3 4 5 6 21 max. (Top View) PL08 Back Connecting Socket (Solder Terminals) 3.5 4 Terminal Arrangement 1 4 Two, 2-dia. holes 50.5 max. 40 6 2 3.9 35 max. 5 3 30 dia. Applicable Models SE APR-S SDV LG2 SAO Mounting Holes Two, 3.5-dia. or two, M3 socket mounting holes 7 1 8 31-dia. hole 400.3 (Top View) Approx. 20.5 Socket Mounting Track (for PF083A) Hold-down Clip Use the Hold-down Clip to secure the Voltage Sensor on the Connecting Socket, as well as to prevent faulty contact. PFP-100N/PFP-50N Socket Mounting Track Type of Socket 7.30.15 350.3 4.5 15 25 10 25 25 10 25 15 (5)* Applicable type of Hold-down Clip PF083A PFC-A7 PL08 PLC-8 270.15 1 1,000 (500)* * 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 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/ (c)Copyright OMRON Corporation 2012 All Right Reserved.