Voltage Sensor LG2 CSM_LG2_DS_E_4_2 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 (cosφ = 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 (cosφ = 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 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) 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 75to120% 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 91 107 86 38.5 max. 13.6 16 PF08 (order separately) PF083A (order separately) Accessories (Order Separately) Connecting Socket PF083A Front Connecting Socket Eight, M3.5 × 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. 33±0.2 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 40±0.3 (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 7.3±0.15 35±0.3 4.5 15 25 10 25 25 10 25 15 (5)* Applicable type of Hold-down Clip PF083A PFC-A7 PL08 PLC-8 27±0.15 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 Terms and Conditions Agreement 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. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. (b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. 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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.