K8AB-PH1

Phase-sequence Phase-loss Relay K8AB-PH Three-phase Phase-sequence Phase-loss Relay Using Voltage Detection Method • Prevents reverse motor rotation due to incorrect wiring. • Distinguishes between positive phases, reversed phases, and phase loss when power is turned ON. • Voltage detection method enables application for any load current. • One SPDT output relay, 6 A at 250 VAC (resistive load). • Output status can be monitored using LED indicator. Model Number Structure ■ Model Number Legend K8AB-@@ 1 2 3 1. Basic Model K8AB: Measuring and Monitoring Relays 2. Functions PH: Phase-sequence Phase-loss Relay 3. Rated Input Voltage 1: 200 to 500 VAC Ordering Information ■ List of Models Phase-sequence Phase-loss Relay Functions Rated input voltage (See note.) Phase sequence and phase loss monitoring 200 to 500 VAC Model K8AB-PH1 Note: The power supply is shared with the rated input voltage. Cat. No. N145-E1-02 Phase-sequence Phase-loss Relay K8AB-PH 1 Ratings and Specifications ■ Ratings Rated input voltage Three-phase, three-wire mode, 200 to 500 VAC Input load 15 VA max. Reversed phase and phase loss operating time 0.1 s max. Reset method Automatic reset Indicators Power (PWR): Green, Relay output (RY): Yellow Output relays One SPDT relay (NC operation) Output relay ratings Rated load Resistive load 6 A at 250 VAC (cosφ = 1) 6 A at 30 VDC (L/R = 0 ms) Inductive load 1 A at 250 VAC (cosφ = 0.4) 1 A at 30 VDC (L/R = 7 ms) Maximum contact voltage: 250 VAC Maximum contact current: 6 A AC Maximum switching capacity: 1,500 VA Minimum load: 10 mA at 5 VDC Mechanical life: 10,000,000 operations Electrical life: Make: 50,000 times, Break: 30,000 times Ambient operating temperature −20 to 60°C (with no condensation or icing) Storage temperature −40 to 70°C (with no condensation or icing) Ambient operating humidity 25% to 85% (with no condensation) Storage humidity 25% to 85% (with no condensation) Altitude 2,000 m max. Terminal screw tightening torque 0.49 N·m Terminal wiring method Recommended wire Solid wire: 2.5 mm 2 Twisted wires: AWG16, AWG18 Note: 1. Ferrules with insulating sleeves must be used with twisted wires. 2. Two wires can be twisted together. Recommended ferrules Al 1,5-8BK (for AWG16) manufactured by Phoenix Contact Al 1-8RD (for AWG18) manufactured by Phoenix Contact Al 0,75-8GY (for AWG18) manufactured by Phoenix Contact Case color Munsell 5Y8/1 Case material ABS resin (self-extinguishing resin) UL94-V0 Weight Approx. 110 g Mounting Mounted to DIN Track or via M4 screws (tightening torque: 1.2 N·m) Dimensions 22.5 (W) × 90 (H) × 100 (D) mm 2 Phase-sequence Phase-loss Relay K8AB-PH Cat. No. N145-E1-02 ■ Specifications Input voltage range 200 to 500 VAC Input frequency range 45 to 65 Hz Overload capacity Continuous input: 115% of maximum input, 10 s max.: 125% of maximum input Temperature influence Operating time Fluctuation based on measured value at standard temperature: −20°C to standard temperature: ±10% max. Standard temperature to 60°C : ±10% max. (Humidity: 25% to 80%) Humidity influence Operating time Based on ambient room humidity 25% to 80%: ±10% max. Influence of power supply voltage Operating time: ±10% max. Note: The error in the operating value and operating time under standard conditions. Influence of power supply frequency Operating time: ±10% max. (at 45 to 65 Hz) Note: The error in the operating value and operating time under standard conditions. Influence of input frequency At 45 to 65 Hz Operating time ±10% max. Note: The error in the operating value and operating time under standard conditions. Applicable standards Conforming standards EN60255-5 and EN60255-6 Installation environment (Pollution Degree 2, Overvoltage Category III) EMC EN61326 Safety standards UL508 Insulation resistance 20 MΩ min. Between external terminals and case Between input terminals and output terminals Dielectric strength 2,000 VAC for one minute Between external terminals and case Between input terminals and output terminals Noise immunity 1,500 V power supply terminal common/normal mode Square-wave noise of ±1 µs/100 ns pulse width with 1-ns rise time Vibration resistance Frequency 10 to 55 Hz, 0.35-mm single amplitude, acceleration 50 m/s2 10 sweeps of 5 min each in X, Y, and Z directions Shock resistance 100 m/s2, 3 times each in 6 directions along three axes (up/down, left/right, forward/backward) Degree of protection Terminal section: Finger protection Connections ■ Wiring Diagram Phase Sequence and Phase Loss Operation Diagram Phase Loss Operation Phase Sequence Operation L1 L3 L1 L3 L2 L2 L2 L1 L3 L1 L2 L3 L1 Input L2 Voltage input L3 L1 L2 L3 Relay Note: 1. Motor load phase loss cannot be detected. To detect motor load phase loss, use the K8AB-PM or K8AB-PA. 2. The K8AB-PH output relay is normally operative. 3. L1 and L3 function both as the power supply terminals and as input terminals. If the voltage drops below the minimum input voltage (60%), then the Relay will not operate due to an undervoltage. 4. Phase loss is detected based on the phase sequence, so phase loss cannot be detected for loads that generate inductive power, e.g., due to monitoring during operation. 5. Phase loss is detected based on voltage, so phase loss cannot be detected on the load side. Cat. No. N145-E1-02 14 Signal output 12 11 Relay signal output Load Phase-sequence Phase-loss Relay K8AB-PH 3 Nomenclature ■ Front Indicators Item Terminal block (See notes 1 and 2.) Power indicator (PWR: Green) Meaning Lit when power is being supplied (see note). Relay status indicator Lit when relay is operating (normally lit). (RY: Yellow) Note: 1. The input across L1 and L3 is used for the internal power supply. Therefore, the power indicator will not be lit if there is no input across L1 and L3. 2. Use either a solid wire of 2.5 mm2 maximum or a ferrule with insulating sleeve for the terminal connection. The length of the exposed current-carrying part inserted into the terminal must be 8 mm or less to maintain dielectric strength after connection. Power indicator Relay status indicator For 2.5 mm2 or smaller solid wires For ferrules with insulating sleeves 8 mm max. 8 mm max. Recommended ferrules Phoenix Contact • Al 1,5-8BK (for AWG16) • Al 1-8RD (for AWG18) • Al 0,75-8GY (for AWG18) 3. Tightening torque Recommended: 0.49 N·m Maximum: 0.54 N·m ■ Operation and Setting Methods Connections L1 L2 L3 1. Input Connect using L1, L2, and L3. Make sure the phase sequence is wired correctly. The Unit will not operate normally if the phase sequence is incorrect. 2. Outputs Terminals 11, 12, and 14 are output terminals for SPDT. Voltage input L1 L2 L3 14 Signal output 12 11 Relay signal output Load Dimensions (Unit: mm) Phase-sequence, Phase-loss Relays K8AB-PH1 22.5 5 100 90 72 4 Phase-sequence Phase-loss Relay K8AB-PH 5 Cat. No. N145-E1-02 Safety Precautions ■ Precautions for Safe Use ■ Precautions for Correct Use Make sure to follow the instructions below to ensure safety. For Proper Use 1. Do not use or keep this product in the following environments. • Outdoors, or places subject to direct sunlight or wearing weather. 1. Do not use the product in the following locations. • Places subject to radiant heat from heat generating devices. • Places where dust, iron powder, or corrosive gases (in particular, sulfuric or ammonia gas) exist. • Places subject to vibrations or physical shocks. • Places subject to static electricity or inductive noise. • Places where water or oil come in contact with the product. 2. Make sure to install this product in the correct direction. 3. There is a remote risk of electric shock. Do not touch terminals while electricity is being supplied. 4. Make sure to thoroughly understand all instructions in the Instructions Manual before handling this product. 5. Make sure to confirm terminal makings and polarity for correct wiring. 6. Tighten terminal screws firmly using the following torque. Recommended tightening torque: 0.49 N·m Maximum tightening torque: 0.54 N·m max. 7. Operating ambient temperature and humidity for this product must be within the indicated rating when using this product. 8. There is a remote risk of explosion. Do not use this product where flammable or explosive gas exists. 9. Make sure that no weight rests on the product after installation. 10.To enable an operator to turn off this product easily, install switches or circuit breakers that conform to relevant requirements of IEC60947-1 and IEC60947-3, and label them appropriately. 2. Make sure to use setting values appropriate for the controlled object. Failure to do so can cause unintended operation, and may result in accident or corruption of the product. 3. Do not use thinner or similar solvent for cleaning. Use commercial alcohol. 4. When discarding, properly dispose of the product as industrial waste. 5. Only use this product within a board whose structure allows no possibility for fire to escape. About Installation 1. When wiring, use only recommended crimp terminals. 2. Do not block areas around the product for proper dissipation of heat. (If you do not secure space for heat dissipation, life cycle of the product will be compromised.) 3. To avoid electrical shocks, make sure that power is not supplied to the product while wiring. 4. To avoid electrical shocks, make sure that power is not supplied to the product when performing DIP switch settings. Noise Countermeasures 1. Do not install the product near devices generating strong high frequency waves or surges. 2. When using a noise filter, check the voltage and current and install it as close to the product as possible. 3. In order to prevent inductive noise, wire the lines connected to the product separately from power lines carrying high voltages or currents. Do not wire in parallel with or on the same cable as power lines. Other measures for reducing noise include running lines along separate ducts and using shield lines. To avoid faulty operations, malfunctions, or failure, observe the following operating instructions. 1. When turning on the power, make sure to realize rated voltage within 1 second from the time of first supply of electricity. 2. Make sure to use power supply for operations, inputs, and transformer with the appropriate capacity and rated burden. 3. Maintenance and handling of this product may only be performed by qualified personnel. 4. Distortion ratio of input wave forms must be 30% or less. Use of this product with circuits that have large distortion in wave forms may result in unwanted operations. 5. Using this product for thyristor controls or inverters will result in errors. 6. When setting the volume, adjust the control from the minimum side to the maximum side. Cat. No. N145-E1-02 Phase-sequence Phase-loss Relay K8AB-PH 5 Questions and Answers Q Q Checking Operation Motor load phase loss cannot be detected during operation. It can be used to detect phase loss at startup. Normally, three-phase motors will continue to rotate even if one phase is open. The three-phase voltage will be induced at the motor terminals. The diagram shows voltage induction at the motor terminals when phase R has been lost with a load applied to a three-phase motor. The horizontal axis shows the motor load as a percentage of the rated load, and the vertical axis shows voltage as a percentage of the rated voltage. The lines in the graph show the voltage induced at the motor terminals for each load when phase loss occurs during operation. As the graph shows, voltage is induced at the motor terminals even if there is phase loss for a motor load, so the K8AB-PH1 cannot detect phase loss for motor loads during operation. Use the K8AB-PH1 to detect phase loss at startup. Phase Sequence Switch the wiring, as shown by the dotted lines in the connection diagram, to reverse the phase sequence and check that the K8AB operates. Phase Loss Create a phase loss for any input phase and check that the K8AB operates. Connection Diagram 3φ, 200 VAC L1 L1 L2 L2 L3 L3 Motor Load Phase Loss during Operation Characteristic Curve Diagram Can phase loss be detected on the load side? Voltage (as a percentage of rated voltage) Q Note: This characteristic curve shows the approximate values only. In principle, phase loss cannot be detected on the load side because the K8AB-PH1 measures three-phase voltage to determine phase loss. 100 95 90 VST 85 80 VTR 75 70 65 60 55 50 45 0 VRS 10 20 30 40 50 60 70 80 90 100 110 Motor load (as a percentage of rated load) Note: For phase loss of phase R. VST, VTR, and VRS indicate the motor terminal voltage at phase loss. 6 Phase-sequence Phase-loss Relay K8AB-PH Cat. No. N145-E1-02 Terms and Conditions of Sale 1. Offer; Acceptance. These terms and conditions (these "Terms") are deemed part of all quotes, agreements, purchase orders, acknowledgments, price lists, catalogs, manuals, brochures and other documents, whether electronic or in writing, relating to the sale of products or services (collectively, the "Products") by Omron Electronics LLC and its subsidiary companies (“Omron”). Omron objects to any terms or conditions proposed in Buyer’s purchase order or other documents which are inconsistent with, or in addition to, these Terms. 2. Prices; Payment Terms. All prices stated are current, subject to change without notice by Omron. Omron reserves the right to increase or decrease prices on any unshipped portions of outstanding orders. Payments for Products are due net 30 days unless otherwise stated in the invoice. 3. Discounts. Cash discounts, if any, will apply only on the net amount of invoices sent to Buyer after deducting transportation charges, taxes and duties, and will be allowed only if (i) the invoice is paid according to Omron’s payment terms and (ii) Buyer has no past due amounts. 4. Interest. Omron, at its option, may charge Buyer 1-1/2% interest per month or the maximum legal rate, whichever is less, on any balance not paid within the stated terms. 5. Orders. Omron will accept no order less than $200 net billing. 6. Governmental Approvals. Buyer shall be responsible for, and shall bear all costs involved in, obtaining any government approvals required for the importation or sale of the Products. 7. Taxes. All taxes, duties and other governmental charges (other than general real property and income taxes), including any interest or penalties thereon, imposed directly or indirectly on Omron or required to be collected directly or indirectly by Omron for the manufacture, production, sale, delivery, importation, consumption or use of the Products sold hereunder (including customs duties and sales, excise, use, turnover and license taxes) shall be charged to and remitted by Buyer to Omron. 8. Financial. If the financial position of Buyer at any time becomes unsatisfactory to Omron, Omron reserves the right to stop shipments or require satisfactory security or payment in advance. If Buyer fails to make payment or otherwise comply with these Terms or any related agreement, Omron may (without liability and in addition to other remedies) cancel any unshipped portion of Products sold hereunder and stop any Products in transit until Buyer pays all amounts, including amounts payable hereunder, whether or not then due, which are owing to it by Buyer. Buyer shall in any event remain liable for all unpaid accounts. 9. Cancellation; Etc. Orders are not subject to rescheduling or cancellation unless Buyer indemnifies Omron against all related costs or expenses. 10. Force Majeure. Omron shall not be liable for any delay or failure in delivery resulting from causes beyond its control, including earthquakes, fires, floods, strikes or other labor disputes, shortage of labor or materials, accidents to machinery, acts of sabotage, riots, delay in or lack of transportation or the requirements of any government authority. 11. Shipping; Delivery. Unless otherwise expressly agreed in writing by Omron: a. Shipments shall be by a carrier selected by Omron; Omron will not drop ship except in “break down” situations. b. Such carrier shall act as the agent of Buyer and delivery to such carrier shall constitute delivery to Buyer; c. All sales and shipments of Products shall be FOB shipping point (unless otherwise stated in writing by Omron), at which point title and risk of loss shall pass from Omron to Buyer; provided that Omron shall retain a security interest in the Products until the full purchase price is paid; d. Delivery and shipping dates are estimates only; and e. Omron will package Products as it deems proper for protection against normal handling and extra charges apply to special conditions. 12. Claims. Any claim by Buyer against Omron for shortage or damage to the Products occurring before delivery to the carrier must be presented in writing to Omron within 30 days of receipt of shipment and include the original transportation bill signed by the carrier noting that the carrier received the Products from Omron in the condition claimed. 13. 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, MERCHANTABIL- 14. 15. 16. 17. 18. ITY 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. Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses 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. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. See http://oeweb.omron.com or contact your Omron representative for published information. Limitation on Liability; Etc. OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. Indemnities. Buyer shall indemnify and hold harmless Omron Companies and their employees from and against all liabilities, losses, claims, costs and expenses (including attorney's fees and expenses) related to any claim, investigation, litigation or proceeding (whether or not Omron is a party) which arises or is alleged to arise from Buyer's acts or omissions under these Terms or in any way with respect to the Products. Without limiting the foregoing, Buyer (at its own expense) shall indemnify and hold harmless Omron and defend or settle any action brought against such Companies to the extent based on a claim that any Product made to Buyer specifications infringed intellectual property rights of another party. Property; Confidentiality. Any intellectual property in the Products is the exclusive property of Omron Companies and Buyer shall not attempt to duplicate it in any way without the written permission of Omron. Notwithstanding any charges to Buyer for engineering or tooling, all engineering and tooling shall remain the exclusive property of Omron. All information and materials supplied by Omron to Buyer relating to the Products are confidential and proprietary, and Buyer shall limit distribution thereof to its trusted employees and strictly prevent disclosure to any third party. Export Controls. Buyer shall comply with all applicable laws, regulations and licenses regarding (i) export of products or information; (iii) sale of products to “forbidden” or other proscribed persons; and (ii) disclosure to non-citizens of regulated technology or information. Miscellaneous. (a) Waiver. No failure or delay by Omron in exercising any right and no course of dealing between Buyer and Omron shall operate as a waiver of rights by Omron. (b) Assignment. Buyer may not assign its rights hereunder without Omron's written consent. (c) Law. These Terms are governed by the law of the jurisdiction of the home office of the Omron company from which Buyer is purchasing the Products (without regard to conflict of law principles). (d) Amendment. These Terms constitute the entire agreement between Buyer and Omron relating to the Products, and no provision may be changed or waived unless in writing signed by the parties. (e) Severability. If any provision hereof is rendered ineffective or invalid, such provision shall not invalidate any other provision. (f) Setoff. Buyer shall have no right to set off any amounts against the amount owing in respect of this invoice. (g) Definitions. As used herein, “including” means “including without limitation”; and “Omron Companies” (or similar words) mean Omron Corporation and any direct or indirect subsidiary or affiliate thereof. Certain Precautions on Specifications and Use 1. Suitability of Use. Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases but the following is a non-exhaustive list of applications for which particular attention must be given: (i) Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this document. (ii) Use in consumer products or any use in significant quantities. (iii) 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. (iv) Systems, machines and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to this Product. NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO 2. 3. 4. 5. ADDRESS THE RISKS, AND THAT THE OMRON’S PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. Performance Data. Data presented in Omron Company websites, catalogs and other materials 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 user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. 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. &RPSOHWH¦7HUPVDQG&RQGLWLRQVRI6DOH§IRUSURGXFWSXUFKDVHDQGXVHDUHRQ2PURQ©VZHEVLWH DWZZZRPURQFRPRHL¤XQGHUWKH¦$ERXW8V§WDELQWKH/HJDO0DWWHUVVHFWLRQ $//',0(16,2166+2:1$5(,10,//,0(7(56 7RFRQYHUWPLOOLPHWHUVLQWRLQFKHVPXOWLSO\E\7RFRQYHUWJUDPVLQWRRXQFHVPXOWLSO\E\ 20521(/(&7521,&6//& 20521&$1$'$,1&   2QH&RPPHUFH'ULYH 6FKDXPEXUJ,/ )RU86WHFKQLFDOVXSSRUWRURWKHULQTXLULHV 0LOQHU$YHQXH 7RURQWR2QWDULR0%9 2052121/,1( *OREDOKWWSZZZRPURQFRP 86$KWWSZZZRPURQFRPRHL &DQDGDKWWSZZZRPURQFD  Cat. No. N145-E1-02 12/06 Specifications subject to change without notice Printed in USA