New Product Three-phase Voltage and Phase-sequence Phase-loss Relay K8AK-PM Ideal for Monitoring 3-phase Power Supplies for Industrial Facilities and Equipment. • Greater resistance to inverter noise. • Monitor overvoltages, undervoltages, phase sequence, and phase loss for three-phase 3-wire or 4-wire power supplies with just one Unit. Switch setting for 3-phase 3-wire or 3-phase 4-wire power supply. • Two SPDT output relays, 5 A at 250 VAC (resistive load). Output overvoltages and undervoltages using separate relays. • World-wide power specifications supported by one Unit (switchable). • Output status can be monitored using LED indicator. For the most recent information on models that have been certified for safety standards, refer to your OMRON website. Refer to Safety Precautions on page 10. Refer to page 8 to 9 for commonly asked questions. Ordering Information List of Models Rated input* Model 3-phase 3-wire mode 200, 220, 230, 240 VAC 3-phase 4-wire mode 115, 127, 133, 138 VAC 3-phase 3-wire mode 380, 400, 415, 480 VAC 3-phase 4-wire mode 220, 230, 240, 277 VAC K8AK-PM1 K8AK-PM2 Note: Three-phase 3-wire or 4-wire and the input range are switched using a DIP switch. * The power supply voltage is the same as the rated input voltage. ●Single K8AK Monitors 3-phase Power Supply with 3 or 4 Wires Monitoring Relays can be used to monitor 3-phase power supplies with 3 or 4 wires simply by changing DIP switch settings. Phase to phase voltage (3 wires) L1 L2 L3 Phase to neutral voltage (4 wires) L1 L2 L3 N 230VAC 400VAC 230VAC 400VAC 400VAC 230VAC A Single K8AK Can Monitor a 3-phase Power Supply Anywhere in the World Reduces Maintenance Parts Inventory K8AK-PM1 K8AK-PM2 SW3 ON OFF ON OFF SW4 ON ON OFF OFF SW2 SW2 ON P-N 138 V 133 V 127 V 115 V OFF P-P 240V 230 V 220 V 200 V ON P-N 277 V 240 V 230 V 220 V OFF P-P 480 V 415 V 400 V 380 V 1 K8AK-PM Ratings and Specifications Ratings Rated input voltage K8AK-PM1 K8AK-PM2 Input load Operating value setting range (OVER, UNDER) Operating value Reset value Reset method Operating time setting range (T) Overvoltage/undervoltage Phase sequence Phase loss Power ON lock time (LOCK) Indicators Output relays Output relay ratings Ambient operating temperature Storage temperature Ambient operating humidity Storage humidity Altitude Terminal screw tightening torque Terminal wiring method Case color Case material Weight Mounting Dimensions 2 Three-phase, three-wire Mode: 200, 220, 230 and 240 VAC Three-phase, four-wire Mode: 115, 127, 133 and 138 VAC Three-phase, three-wire Mode: 380, 400, 415 and 480 VAC Three-phase, four-wire Mode: 220, 230, 240 and 277 VAC K8AK-PM1: Approx. 4.4 VA K8AK-PM2: Approx. 4.4 VA Overvoltage −30% to 25% of rated input voltage Undervoltage −30% to 25% of rated input voltage Note: The rated input voltage can be switched using the DIP switch. 100% operation at set value 5% of operating value (fixed) Automatic reset 0.1 to 30 s 0.1 s±0.05 s 0.1 s max. 1 s or 5 s (Switched using DIP switch.) Power (PWR): Green, Relay output (RY): Yellow, OVER/UNDER: Red Two SPDT relays (NC operation) Rated load Resistive load 5 A at 250 VAC 5 A at 30 VDC Maximum switching capacity: 1,250 VA, 150 W Minimum load: 5 VDC, 10 mA (reference values) Mechanical life: 10 million operations min. Electrical life: 5 A at 250 VAC or 30 VDC: 50,000 operations 3 A at 250 VAC/30 VDC: 100,000 operations −20 to 60°C (with no condensation or icing) −25 to 65°C (with no condensation or icing) 25% to 85% (with no condensation) 25% to 85% (with no condensation) 2,000 m max. 0.49 to 0.59 N·m Recommended wire Solid wire: 2.5 mm2 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 N1.5 PC and ABS, UL 94 V-0 Approx. 150 g Mounts to DIN Track. 22.5 × 90 × 100 mm (W×H×D) K8AK-PM Specifications Input frequency 50/60 Hz Overload capacity Continuous input at 115% of maximum input, 10 s at 125% (up to 600 VAC). Repeat accuracy Applicable standards Operating value ±0.5% full scale (at 25°C and an ambient humidity of 65% at the rated power supply voltage, DC and 50/60 Hz sine wave input) Operating time ±50 ms (at 25°C and 65% humidity, rated power supply voltage) Conforming standards EN 60947-5-1 Installation environment (pollution level 2, installation category III) EMC EN 60947-5-1 Safety standards UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA: C22.2 No.14, CCC: GB14048.5 Insulation resistance 20 MΩ Between all external terminals and the case Between all input terminals and all output terminals Dielectric strength 2,000 VAC for 1 min Between all external terminals and the case Between all input terminals and all 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, 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 3 axes Degree of protection Terminals: IP20 ●Relationship of Mounting Distance between K8AK-PM Relays and Ambient Temperature (Reference Values) The following diagram shows the relationship between the mounting distances and the ambient temperature. If the relay is used with an ambient temperature that exceeds these values, the temperature of the K8AK may rise and shorten the life of the internal components. 60 Ambient temperature [°C] 50 40 30 20 10 0 5 10 15 Distance between products d [mm] Test method Sample: K8AK-PM Mounting distances: 0, 5, and 10 mm min. K8AK No.1 DIN Track K8AK No.2 K8AK No.3 K8AK No.4 K8AK No.5 Distance between products: d 3 K8AK-PM Connections Terminal Diagram Control Output Relay Output 250 VAC, 5 A (resistive load) 30 VDC, 5 A (resistive load) 21 24 22 L1 L2 L3 Input Voltages Relay Output L1 Undervoltage, phase sequence or phase loss 21 24 22 L2 L3 3-phase, 3-wire power supply _ L2 L3 N _ _ 3-phase, 4-wire power supply or N L1 _ Relay Output Overvoltage 11 12 Monitoring 3-phase, 3-wire Power Supply N _ _ 11 12 14 Monitoring 3-phase, 4-wire Power Supply 14 Note: 1. Do not connect anything to terminals that are shaded in gray. 2. Use the recommended ferrules if you use twisted wires. Wiring Example L1 3-phase L2 voltage Motor L3 N 21 24 22 L1 L2 L3 Power supply AC/DC N _ _ 11 12 14 Timing Charts Operation Indicators ●Overvoltage/Undervoltage and Phase Sequence/Phase Loss Operation Diagram Item Contact operation Ry Over Under indicator indicator indicator Overvoltage set value Hysteresis: Fixed at 5% L1 Input L2 L3 Hysteresis: Fixed at 5% Undervoltage set value Flashing Lit Overvoltage alarm indicator Flashing Lit Undervoltage alarm indicator t t: Operating time (0.1 to 30 s) Overvoltage relay 11-14 t t1 ON ON OFF OFF ON ON OFF ON ON OFF ON*2 Phase loss OFF OFF*1 Phase Incorserect quence phase ON OFF Flashing* Correct phase ON OFF OFF t1: Power ON lock (1 s or 5 s) Phase sequence operation L2 L1 L3 L1 L1 L1 L3 L2 L2 L3 L2 L1 L3 Input L2 L3 Flashing Flashing Flashing Undervoltage alarm indicator Undervoltage relay 21-24 Note: 1. The K8AK-PM@ output relay is normally operative. 2. The power ON lock prevents unnecessary alarms from being generated during the instable period when the power is first turned on. There is no relay output during timer operation. 3. Phase loss is detected by L1, L2, and L3 voltage drops. A phase loss will exist if any of the phases drops below 60% of the rated input. Under relay Undervoltage t: Operating time (0.1 to 30 s) Phase loss operation Over relay Overvoltage Undervoltage relay 21-24 4 Display *1 *2 *3 OFF *1 OFF 3 ON OFF ON ON Over_Ry turns OFF when phase loss is detected. L1 and L2 are also used for the power supply. If the voltage becomes very low, the indicator will turn OFF. The indicator will flash once per second after an incorrect phase is detected and once per 0.5 second during the detection time. K8AK-PM Nomenclature ●Indicators Front Item Power indicator (PWR: Green) Relay status indicator (RY: Yellow) Alarm Overvoltage: indicator Red Terminal block (See notes 1 and 2.) Overvoltage knob (OVER) Power indicator Relay status indicator Alarm indicator Undervoltage knob (UNDER) Operating time knob (T) Meaning Lit when power is being supplied* Lit when relay is operating (normally lit). Lit when there is an overvoltage. The indicator flashes to indicate the error status after the overvoltage has exceeded the set value while the operating time is being clocked. Undervoltage: • Lit when there is an undervoltage or phase loss. Red The indicator flashes to indicate the error status after the undervoltage has exceeded the set value while the operating time is being clocked. • Lit when there is a phase sequence error. * The input across L1 and L2 is used for the internal power supply. Therefore, the power indicator will not be lit if there is no input across L1 and L2. * ●Setting Knobs Item Terminal block (See notes 1 and 2.) Usage Overvoltage knob (OVER) Can be set between −30% and 25% of the rated input. Undervoltage knob (UNDER) Can be set between −30% and 25% of the rated input. Operating time knob (T) Used to set the operating time to 0.1 to 30 s. Note: 1. 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. For 2.5 mm2 or smaller solid wires 8 mm max. For ferrules with an insulation sleeve. 8 mm max. Recommended ferrules Phoenix Contact • Al 1,5-8BK (for AWG16) • Al 1-8RD (for AWG18) • Al 0,75-8GY (for AWG18) 2. Screw tightening torque: 0.49 to 0.59 N·m 5 K8AK-PM Operation Methods Connections ●Input N L1 L2 L3 Connect to L1, L2, and L3 (for three-phase three-wire mode) or L1, L2, L3, and N (for three-phase four-wire mode), depending on the mode selected using pin 2 on the DIP switch. The Unit will not operate correctly if the DIP switch setting and the wiring do not agree. Make sure the phase sequence is wired correctly. The Unit will not operate normally if the phase sequence is incorrect. Voltage input L1 L2 N L3 ●Outputs 14 Signal output 12 Terminals 11, 12, and 14 are the output terminals for overvoltage (SPDT). Terminals 21, 22, and 24 are the output terminals for undervoltage, phase loss, and phase sequence (SPDT). * Use the recommended ferrules if you use twisted wires. 11 Overvoltage 24 Signal output 22 Undervoltage Phase loss, Phase sequence Load DIP Switch Settings The power ON lock time, number of wires, and rated voltage are set using the DIP switch located on the bottom of the Unit. ●DIP Switch Functions K8AK-PM1 OFF Pin OFF ● ↑ ON ON ❍ ↓ SW4 SW3 SW2 SW1 DIP switch pins Power ON lock time OFF 1 2 3 4 ON 1s ● --- --- --- 5s ❍ --- --- --- Number of wires 3-wire 3-phase --- ● --- --- 4-wire 3-phase --- ❍ --- --- ● Rated voltage 3-wire 3phase 4-wire 3phase 200 V 115 V --- --- ● 220 V 127 V --- --- ❍ ● 230 V 133 V --- --- ● ❍ 240 V 138 V --- --- ❍ ❍ 2 3 4 Note: All pins are set to OFF at the factory. K8AK-PM2 Pin OFF ● ↑ ON ❍ ↓ Power ON lock time 1 ON 1s ● --- --- --- 5s ❍ --- --- --- Number of wires 3-wire 3-phase --- ● --- --- 4-wire 3-phase --- ❍ --- --- ● Rated voltage 3-wire 3phase 4-wire 3phase 380 V 220 V --- --- ● 400 V 230 V --- --- ❍ ● 415 V 240 V --- --- ● ❍ 480 V 277 V --- --- ❍ ❍ Note: All pins are set to OFF at the factory. 6 OFF 21 K8AK-PM Setting Method l ●Overvoltage The overvoltage knob (OVER) is used to set the overvoltage threshold. The overvoltage can be set to between −30% and 25% of the rated input voltage. Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the same level.) Use this as a guide to set the voltage. The rated input depends on the model and DIP switch setting. Example: K8AK-PM1 with Pin 2 Turned OFF (Three-phase, Three-wire Mode) and Pins 3 and 4 Turned OFF (Rated Voltage of 200 V) The rated input voltage is 200 VAC and the setting range is 140 to 250 V. ●Undervoltage Undervoltage is set using the undervoltage knob (UNDER). The undervoltage can be set to between −30% and 25% of the rated input. Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the same level.) Use this as a guide to set the voltage. The rated input depends on the model and DIP switch setting. Example: K8AK-PM1 with Pin 2 Turned OFF (Three-phase, Three-wire Mode) and Pins 3 and 4 Turned OFF (Rated Voltage of 200 V) The rated input voltage is 200 VAC and the setting range is 140 to 250 V. ●Operating Time The operating time is set using the operating time knob (T). The operating time can be set to between 0.1 and 30 s. Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the same level.) Use this as a guide to set the operating time. If the input exceeds (or drops lower than) the voltage set value, the alarm indicator will start flashing for the set period and then stay lit. Dimensions (Unit: mm) Three-phase Voltage and Phase-sequence Phase-loss Relays K8AK-PM1 K8AK-PM2 22.5 100 90 72 5 Optional Parts for DIN Track Mounting ●DIN Tracks PFP-100N PFP-50N 7.3±0.15 4.5 35±0.3 15 25 10 25 25 1,000 (500)* 10 25 15 (5)* 27±0.15 1 *Dimensions in parentheses are for the PFP-50N. 7 K8AK-PM Questions and Answers Q Q Checking Operation How to Measure the Operating Time Overvoltages Gradually increase the input from 80% of the set value. The input value will equal the operating value when the input exceeds the set value and the alarm indicator starts flashing. Operation can be checked by the relay output that will start after the operating time has passed. Undervoltage Gradually decrease the input from 120% of the set value and check the operation using the same method as for overvoltage. Example: For monitoring mode set to three-phase three-wire monitoring, a rated voltage of 200 V, and an operating time of 5 s. Note: K8AK-PM@ output relays are normally operative. Overvoltage Change the input suddenly from 0% to 120% of the set value and measure the time until the Unit operates. Undervoltage Change the input suddenly from 120% to 0% of the set value and measure the time until the Unit operates. Operating Time Adjust the slide resistor so that the voltage applied to the K8AK terminals is 120% of the set value (for overvoltage detection) and 80% of the set value (for undervoltage detection) when the auxiliary relay operates, as shown in connection diagram 2. Close the switch and use the cycle counter to measure the operating time. Connection Diagram 2 Operating set value L1 Input voltage V1 3φ, 200 VAC Flashing Alarm indicator R1 X/a 5s Relay output L2 L1 Lit X X/b V2 V3 L3 R2 L2 R1: Slide resistor 200 Ω 200 W R2: 100 Ω 400 W Connection Diagram 1 Overvoltage L3 L1 V1 3φ, 200 VAC L2 V2 V3 L1 ± L3 0 to 150 V C 200 V Cycle counter L2 Undervoltage L3 Three-phase variable autotransformer 8 Q Checking the Phase Sequence and Phase Loss Operation Phase Sequence Switch the wiring, as shown by the dotted lines in connection diagram 1, to reverse the phase sequence and check that the K8AK operates. Phase loss Create a phase loss for any input phase and check that the K8AK operates. K8AK-PM Questions and Answers Q Q Load-side Phase Loss In principle, phase loss cannot be detected on the load side because the K8AK-PM measures three-phase voltage to determine phase loss. Q Overvoltage Detection When Only One Phase Exceeds the Overvoltage Set Value The K8AK monitors each of the three-phase voltages. This means an overvoltage is detected even if only one phase exceeds the set value. The same applies to undervoltages. Motor Load Phase Loss during 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 phase loss occurs during operation. As the graph shows, phase loss cannot be detected because the motor terminal voltage does not drop very much even if a phase is lost when the load on the motor is light. To detect motor load phase loss during operation, use the undervoltage detection function to detect the motor terminal voltages at phase loss. Set the operating time carefully because it will affect the time from when the phase loss occurs until tripping when this function is used. Characteristic Curve Diagram Voltage (as a percentage of rated voltage) Note: This characteristic curve shows the approximate values only. 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. 9 K8AK-PM Safety Precautions Be sure to read the precautions for all models in the website at the following URL: http://www.ia.omron.com/. Warning Indications WARNING Indicates a potentially hazardous situation which, if not avoided, will result in minor or moderate injury, or may result in serious injury or death. Additionally there may be significant property damage. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage. Precautions for Safe Use Supplementary comments on what to do or avoid doing, to use the product safely. Precautions for Correct Use Supplementary comments on what to do or avoid doing, to prevent failure to operate, malfunction, or undesirable effects on product performance. Meaning of Product Safety Symbols Used to warn of the risk of electric shock under specific conditions. WARNING Electrical shock may occasionally cause serious injury. Confirm that the input voltage is OFF before starting any wiring work and wire all connections correctly. CAUTION Electrical shock may cause minor injury. Do not touch terminals while electricity is being supplied. There is a risk of minor electrical shock, fire, or device failure. Do not allow any pieces of metal, conductors, or cutting chips that occur during the installation process to enter the product. Explosions may cause minor injuries. Do not use the product in locations with inflammable or explosive gases. Used for general prohibitions for which there is no specific symbol. There is a risk of minor electrical shock, fire, or device failure. Do not disassemble, modify, repair, or touch the inside of the product. Used to indicate prohibition when there is a risk of minor injury from electrical shock or other source if the product is disassembled. Loose screws may cause fires. Tighten terminal screws to the specified torque of 0.49 to 0.59 N·m. Used for general mandatory action precautions for which there is no specified symbol. Use of excessive torque may damage the terminal screws. Tighten terminal screws to the specified torque of 0.49 to 0.59 N·m. Use of the product beyond its life may result in contact welding or burning. Make sure to consider the actual operating conditions and use the product within its rated load and electrical life count. The life of the output relay varies significantly with the switching capacity and switching conditions. 10 K8AK-PM Precautions for Safe Use 1. Do not use or store the product in the following locations. • Locations subject to water or oil • Outdoor locations or under direct sunlight • Locations subject to dust or corrosive gases (particularly sulfurizing gases, ammonia, etc.) • Locations subject to rapid temperature changes • Locations prone to icing and dew condensation • Locations subject to excessive vibration or shock • Locations subject to wind and rain • Locations subject to static electricity and noise • Habitats of insects or small animals 2. Use and store the product in a location where the ambient temperature and humidity are within the specified ranges. If applicable, provide forced cooling. 3. Mount the product in the correct direction. 4. Do not wire the input and output terminals incorrectly. 5. Make sure the input voltage and loads are within the specifications and ratings for the product. 6. Make sure the crimp terminals for wiring are of the specified size. 7. Do not connect anything to terminals that are not being used. 8. Use a power supply that will reach the rated voltage within 1 second after the power is turned ON. 9. Keep wiring separate from high voltages and power lines that draw large currents. Do not place product wiring in parallel with or in the same path as high-voltage or high-current lines. 10.Do not install the product near equipment that generates high frequencies or surges. 11.The product may cause incoming radio wave interference. Do not use the product near radio wave receivers. 12.Install an external switch or circuit breaker and label it clearly so that the operator can quickly turn OFF the power supply. 13.Make sure the indicators operate correctly. Depending on the application environment, the indicators may deteriorate prematurely and become difficult to see. 14.Do not use the product if it is accidentally dropped. The internal components may be damaged. 15.Be sure you understand the contents of this catalog and handle the product according to the instructions provided. 16.Do not install the product in any way that would place a load on it. 17.When discarding the product, properly dispose of it as industrial waste. 18.The product must be handled only by trained electrician. 19.Prior to operation, check the wiring before you supply power to the product. 20.Do not install the product immediately next to heat sources. 21.Perform periodic maintenance. Precautions for Correct Use Observe the following operating methods to prevent failure and malfunction. 1. Use the input power and other power supplies and converters with suitable capacities and rated outputs. 2. Use a precision screwdriver or similar tool to adjust the setting knobs. 3. The distortion in the input waveform must be 30% max. If the input waveform is distorted beyond this level, it may cause unnecessary operation. 4. The product cannot be used for thyristor control or on the secondary side of an inverter. To use the product on the primary side of an inverter, install a noise filter on the primary side of the inverter. 5. To reduce the error in the setting knob, always turn the setting knob from the minimum setting toward the maximum setting. 6. Phase loss is detected only when the power supply to the motor is turned ON. Phase loss during motor operation is not detected. 7. Phase loss can be detected only from the input contacts to the power supply side. Phase loss cannot be detected from the input contacts to the load side. 8. When cleaning the product, do not use thinners or solvents. Use commercial alcohol. Correct Mounting Direction, Mounting, and Removing • Mounting to DIN Track 1. Attach the product to the DIN Track with the tab at the top and the hooks at the bottom. 2. Push the product onto the Track until the hooks lock into place. A B • Removing from the DIN Track Pull down on the bottom hook with a flat-blade screwdriver and lift up on the product. Applicable DIN Tracks: PFP-100N (100 cm) PFP-50N (50 cm) 11 K8AK-PM Adjusting the Setting Knobs • Use a screwdriver to adjust the setting knobs. The knobs have a stopper that prevents them from turning beyond the full right or left position. Do not force a knob beyond these points. Setting knob 12 MEMO 13 MEMO 14 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. 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://www.omron.com/global/ 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. 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. 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 ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) 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. OMRON Corporation Industrial Automation Company Authorized Distributor: Tokyo, JAPAN Contact: www.ia.omron.com Regional Headquarters OMRON EUROPE B.V. Wegalaan 67-69-2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS LLC One Commerce Drive Schaumburg, IL 60173-5302 U.S.A. Tel: (1) 847-843-7900/Fax: (1) 847-843-7787 OMRON ASIA PACIFIC PTE. LTD. No. 438A Alexandra Road # 05-05/08 (Lobby 2), Alexandra Technopark, Singapore 119967 Tel: (65) 6835-3011/Fax: (65) 6835-2711 OMRON (CHINA) CO., LTD. Room 2211, Bank of China Tower, 200 Yin Cheng Zhong Road, PuDong New Area, Shanghai, 200120, China Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200 © OMRON Corporation 2014 All Rights Reserved. In the interest of product improvement, specifications are subject to change without notice. CSM_3_1_0315 Cat. No. N185-E1-01 0513 0314 (0314)