USER`S MANUAL 3G3AX-RBU
Contents
1. 1 2 Terminals EN Terminal Description c o Terminal name Description 0 symbol 5 Connect to the terminal of the Inverter Connect to the Braking Resistor RB With the default connection this terminal is connected to the built in resistor Main circuit Only for the models 3G3AX RBU21 RBU22 RBU41 terminal P Connect to the P 2 terminal of the Inverter Connect to the Braking Resistor p With the default connection this terminal is connected to the built in resistor Only for the models 3G3AX RBU21 RBU22 RBU41 SL1 Connect to the MA1 and MA2 terminals of a master unit when Control circuit SL2 used as slave unit terminals in parallel operation terminal MA1 Connect to the SL1 and SL2 terminals of a slave unit when used MA2 as master unit terminals in parallel operation The alarm output terminals for the Regenerative Braking Unit AL1 Provide a circuit to turn off the primary power supply for the Invert AL2 er when the temperature relay of the built in resistor or optional Braking Resistor is activated Alarm terminal Connect to the AL1 AL2 1 2 terminals of the Braking Resistor R1 when the optional Braking Resistor is used Short circuit between the AL1 and AL2 terminals when the option R2 al Braking Resistor is not used Only for the models 3G3AX RBU21 RBU22 RBU41 1 5 1 3 Removing the Built in Resistor 12. Read and Understand This Manual 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 manual 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 manual has been carefully checked and is believed to be accurate however no responsibility is assumed for clerical typographical or proofreading errors or omissions Safety Precautions
3. Safety Precautions llindications and Meanings of Safety Information In this user s manual the following precautions and signal words are used to provide information to ensure the safe use of the Regenerative Braking Unit 3G3AX RBU The information provided here is vital to safety Strictly observe the precautions provided MMeanings of Signal Words WARNING Indicates an imminently hazardous situation which if not avoided is likely to result in serious injury or may result in death Additionally there may be severe property damage CAU T 0 Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury or in property damage Alert Symbols in This Document WARNING Turn off the power supply and implement wiring correctly Not doing so may result in a serious injury due to an electric shock Wiring work must be carried out only by qualified personnel Not doing so may result in a serious injury due to an electric shock Be sure to ground the unit Not doing so may result in a serious injury due to an electric shock or fire Do not remove the front cover during the power supply and 10 minutes after the power shutoff Doing so may result in a serious injury due to an electric shock Do not operate the switches with wet hands Doing so may result in a serious injury due to an electric shock Do not touch the inside of the Re
4. Do not touch the fins Braking Resistors which become too hot during the power supply and for some time after the power shutoff Doing so may result in a burn The models of 3G3AX RBU23 RBU24 RBU42 RBU43 do not have terminals for the alarm input R1 R2 Configure a sequence that enables the Inverter power to turn off when unusual overheating is detected A A A A A A The 3G3AX RBC Braking Resistor does not have a built in thermal fuse Be sure to use the alarm contact terminals AL1 AL2 of the Resistor and configure a sequence that enables the Inverter power to turn off when unusual overheating is detected Not doing so might result in a small scale fire heat generation or damage to the unit Safety Precautions Maintenance and Inspection WARNING Do not remove the front cover during the power supply Doing so may result in a serious injury due to an electric shock Be sure to put on the front cover before turning on the input power operating the DIP switch Not doing so may result in a serious injury due to an electric shock CAUTION Do not touch the fins Braking Resistors which become too hot during the power supply and for some time after the power shutoff Doing so may result in a burn Turn the input power of the Inverter and wait for more than 10 minutes before changing wiring or Do not dismantle repair or modify the product Doing so may resu
5. and terminals in the DC voltage range Then make sure that there is no residual voltage before performing the check A nearly infinite value is shown in a no conduction state The value shown ranges from a few to a few dozen in a conduction state If the measurement result for each item is as listed below the quality is judged as being acceptable Tester polarity Measurement results red black RB N Conduction IGBT N RB No conduction RB Conduction FD RB P No conduction 4 5 4 5 Capacitor Life Curve 4 5 Capacitor Life Curve Ambient temperature C 50 12 hour operation day 40 30 20 24 hour operation day 1 2 3 4 5 6 7 8 9 10 Capacitor life year Note 1 Ambient temperature refers to the surrounding atmospheric temperature of the Regenerative Braking Unit or the temperature inside if it s encased or installed in an enclosure Note 2 The smoothing capacitor which will waste because of the internal chemical reaction should normally be replaced once every 5 years If the ambient temperature is high however frequent operation of the Regenerative Braking Unit will cause its service life to be significantly shortened due to capacitor deterioration pue 4 4 6 4 5 Capacitor Life Curve eoueuojure y pue 4 7 Chapter 5 Specifications 5 1 Standard Specification Lis
6. Braking Unit so as not to apply the test voltage to the Regenerative Braking Unit Use a high resistance tester for a power distribution test of the control circuit Do not use a megger or buzzer Conduct a Regenerative Braking Unit megger test only to the main circuit not to the control circuit Use a 500 V DC megger for a megger test Gradually increase the applied voltage and reduce it to 0 V To conduct a megger test for the main circuit short circuit the P RB and N terminals with a wire Regenerative Braking Unit 500 V DC megger Ground terminal Applied voltage Applied voltage Time Time Note Do not connect the power cable 4 4 pue 4 Inspection and Maintenance 4 4 Checking the Main Element 4 4 Checking the Main Element The quality of the main element can be checked using a tester Preparation Make preparations for the check by following the procedure below 1 Disconnect the cables N RB P and P terminals and the built in resistor cable RB and P terminals 2 Prepare a tester Usable range is 1 measurement resistance Checking method The quality can be judged by measuring the conduction state of the N RB and P terminals on the Regenerative Braking Unit terminal block main circuit terminals while alternating the tester polar ity P FD flywheel diode fly RB IGBT main element N First measure the voltage between the
7. If the 400 V class Regenerative Braking Unit is operated with a single Braking Resistor the Braking Resistor may be damaged 2 Set the DIP switches 5 3 5 1 Standard Specification llSpecifications of Braking Resistors 3G3AX RBA RBB RBC MT 3G3AX RBA 3G3AX RBB 3G3AX RBC ode 1201 1202 1203 1204 2001 2002 3001 4001 4001 6001 12001 Resistance Q 180 100 50 35 180 100 50 35 50 35 17 Capacity W 120 200 300 400 400 600 1200 Allowable brak ing frequency 5 2 5 1 5 1 0 10 7 5 7 5 7 10 ED Allowable con tinuous braking 20 12 5 3 30 20 10 time s 5 4 Specifications 5 2 Dimensional Drawing 5 2 Dimensional Drawing 3G3AX RBU21 RBU22 RBU41 CMT 145 75 a 208 218 100 EE Ground terminal L Screw size M5 i HE 1 b 3G3AX RBU23 217 4 8 160 250 Ground terminal Screw size M5 5 5 5 2 Dimensional Drawing
8. P N directly Doing so might result in a small scale fire heat generation or damage to the unit Do not touch the fins Braking Resistors which become too hot during the power supply and for some time after the power shutoff Doing so may result in a burn The models of 3G3AX RBU23 RBU24 RBU42 RBU43 do not have terminals for the alarm input R1 R2 Configure a sequence that enables the Inverter power to turn off when unusual overheating is detected The 3G3AX RBC Braking Resistor does not have a built in thermal fuse Be sure to use the alarm contact terminals AL1 AL2 of the Resistor and configure a sequence that enables the Inverter power to turn off when unusual overheating is detected Not doing so might result in a small scale fire heat generation or damage to the unit 6 lt lt gt Do not dismantle repair or modify the product Doing so may result in an injury Safety Precautions Installation and Wiring WARNING Turn off the power supply and implement wiring correctly Not doing so may result in a serious injury due to an electric shock Wiring work must be carried out only by qualified personnel Not doing so may result in a serious injury due to an electric shock Be sure to ground the unit Not doing so may result in a serious injury due to an electric shock or fire CAUTION Place covers on the openings or take other precautions to ma
9. 3G3AX RBA RBB RBC be sure to remove the built in resistor If the Braking Resistor 3G3AX RBA RBB RBC is used with the built in resistor connected it may cause the built in resistor to burn due to overheating or result in an overheating detection failure when the Braking Resistor temperature relay is activated eTo use the Braking Resistor 3G3AX RBA RBB RBC for 3G3AX RBU41 be sure to connect two resistors of the same model in series If the 3G3AX RBUA is operated with a single resistor the Braking Resistor may have a fault prevent overheating be sure to connect the alarm contacts 1 AL 1 and 2 12 of the Braking Resistor 1 4 Connection 3G3AX RBU23 RBU24 Connection Example EU the optional Braking Resistor 3G3AX RBA RBB RBC is used The following is an example of connections using the Braking Resistor 3G3AX RBA RBB RBC Up to two units can be connected in parallel For parallel connection use Braking Resistors with the same resistance For DIP switch settings refer to 2 1 DIP Switch Setting page 2 1 MC1 MC2 RY 1 ubisag BS ae as os 3G3AX RBA RBB RBC Q 6 2 AL2 eg O RBU24 Master MAiMA2 1 3G3AX RBA pSL1 512 AL1 AL2 RBB RBC RBO 3G3AX RBU23 0 61 AL1 RB DE O2 AL2 Q 2 N 4 Slave 1 2 O O 1 To select RY check the MC coil and RY contac
10. 5 5 mm min RBU41 34 min 3 5 17 Q min 3 5 mm min RBU42 13 5 5 min 10 8 mm min 10 Q min 8 mm min RBU43 7 50 Q 14 mm min 6107 4 Q 22 mm min Note 1 For wires connecting to the P RB and N terminals use an MLFC wire flame retardant Polyflex wire dielectric strength of 600 V Note 2 If the wiring length between the Regenerative Braking Unit and Braking Resistor exceeds 10 m use the wire size larger than the specified one 10 Precautions for Safe Use A wire of more than 10 m to 25 One rank higher wire size A wire of more than 25 m to 50 m Two ranks higher wire size For the 3G3AX RBU42 model keep the wiring length between the Regenerative Braking Unit and Braking Resistor within 5 m Maintenance and Inspection Be sure to confirm safety before conducting maintenance inspection or parts replacement 11 Precautions for Correct Use Precautions for Correct Use Installation Mount the product on the vertical wall The material of the wall has to be nonflammable such as a metal plate and do not place flammable materials nearby M3G3AX RBU21 RBU22 RBU41 RBU42 10 cm min 10 cm min 5 cm min Tes 10 min 5 10 min 23 24 43 cm min Note The product cannot be mounted horizontall
11. changed or when significant construction changes are made However some specifica tions of the Product may be changed without any notice When in doubt spe cial 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 OInn on Automation simple powerful OMRON ELECTRONICS LLC THE AMERICAS HEADQUARTERS Schaumburg IL USA 847 843 7900 800 556 6766 www omron247 com OMRON CANADA INC HEAD OFFICE OMRON ARGENTINA SALES OFFICE Toronto ON Canada 416 286 6465 866 986 6766 www omron ca Cono Sur 9 OMRON ELETR NICA DO BRASIL LTDA gt HEAD OFFICE OMRON CHILE SALES OFFICE Sao Paulo SP Brasil 55 11 2101 6300 www omron com br Santiago 56 2206 4592 OMRON ELECTRONICS MEXICO SA DE CV HEAD OFFICE OTHER OMRON LATIN AMERICA SALES Apodaca N L 52 811 156 99 10 e mela omron com 56 2206 4592 1563 E1 01 Note Specifications are subject to change 2008 Omron Electronics Printed in U S A
12. the resistance higher than connectable resistance selected Are the units in parallel operation YES NO During operation are the operation LED indicators of all units lit Check the wiring and DIP switch settings are correct Does either the master or slave unit have a wire breakage i NO Replace the resistor Review resistor selection Is the operation LED indicator lit in any other status than Inverter deceleration during Inverter a acceleration or in standby status Is the Inverter s receiving voltage YES outside 10 96 of the rated voltage Correct the voltage Is the control circuit terminals correctly wired For single operation this terminal need not be connected i Be sure to wire correctly and securely Is the main circuit terminals correctly wired The Regenerative Braking Unit is defective Replace or repair the unit Be sure to wire correctly and securely 1 For the IGBT check procedure refer to 4 4 Checking the Element Page 4 5 suomneJodo Maintenance Operations BH 3 3 When an Inverter Overvoltage Trip Occurs 3 3 Whenan Inverter Overvoltage Trip Occurs In principle an Inverter overvoltage trip occurs when the Inverter cannot completely absorb a volt age rise due to excessive regenerative energy As a countermeasure review the resistance of the Braking Resistor model and number of
13. 1 Design BORA P ror opcm t 1 1 1 3 1 2 Removing the Built in Resistor 1 6 1 3 TAs OOMMEGHOM cas Matri ie 1 7 Chapter 2 Functions 251 CRIPPS WIE e puit Duet 2 1 Chapter 3 Maintenance Operations 3 1 Precautions before 3 1 3 2 When the Alarm Contact is Activated 3 2 3 3 When an Inverter Overvoltage Trip Occurs 3 3 Chapter 4 Inspection and Maintenance 4 1 Inspection and 4 1 4 2 Daily Inspection and Periodic Inspection 4 2 4 3 ee ae 4 4 4 4 Checking the Main 4 5 4 5 Capacitor Life Curve RR ER EL ERNEUT 4 6 Chapter 5 Specifications 5 1 Standard Specification 5 1 5 2 Dimensional Eo p ree esee leech 5 5 17 Contents Chapter 1 Design recs ccs 1 1 122 1 3 1 3 Removing the Built i
14. 3 Removing the Built in Resistor EZ To remove the built in resistor follow the procedure described below 3G3AX RB21 RBU22 RBU41 only ubisag 1 Disconnect the lead wires connected from the built in resistor to the P and RB ter minals on the PCB and to the R1 and R2 terminals on the fin Built in resistor 2 Remove the built in resistor from the bottom of the unit 3 Reconnect the wiring between the AL1 and R1 terminals and between the AL2 and R2 terminals on the fin 1 6 1 4 Connection Design 1 4 Connection When the built in resistor is used The following is an example of connections using the built in resistor 1 7 Up to five units can be connected in parallel 3G3AX RBU21 RBU22 Connection Example For DIP switch settings refer to 2 1 DIP Switch Setting page 2 1 MC1 2 BS Inverter OR L1 U T1 0512 V T2 Alarm terminal internal connections Built in resistance temperature relay OT L3 W TS3 2 0 EE Master MATMA2 R20 O O 51812 1 2 ppd O O O O 501512 AL1AL2 ppd 3G3AX RBU21 RBU22 3G3AX RBU21 ON RgBU22 R19 Slave 2 R20 O O O O O O O 512 AL1AL2 ppd 3G3AX RBU21 9 RBU22 R10 Slave MAIMA2 R20 O O O 1 To select RY check the MC coil and RY contact sp
15. 3G3AX RBU24 234 4 68 K 6 8 gt am IN 8 R PIDO e 8 254 275 Ground terminal Screw size M5 5 3G3AX RBU42 i ee ca ATTE TTHEIT am 5 10 SEES 5 Ground terminal Screw size M5 A AN 5 6 Specifications 5 2 Dimensional Drawing 3G3AX RBU43 250 45 Ground terminal Screw size M5 5 7 Terms and Conditions of Sale omnon 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
16. 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 oth erwise of any intellectual property right c Buyer Remedy Omron s sole obli gation 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 responsi ble for warranty repair indemnity or any other claims or expenses regarding the Products unless Omron s analysis confirms that the Products were prop erly handled stored installed and maintained and not subject to contamina tion abuse misuse or inappropriate modification Return of any Products by Buyer must be approved in writing by Omron before shipment Omron Compa nies 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 environ ments Any advice recommendations or information given orally or in writing are not to be construed as an amendment or additi
17. IP switch settings use thorough caution in regards to the receiving voltage Receiving voltage x V2 20 V lt Operating voltage Parallel operation settings SW3 SW4 2 1 Interlocking operation can be performed by two units master and slave units in parallel connection via the signal lines MA1 MA2 SL1 SL2 connection between the units and the DIP switch setting When a unit is set as the slave using the DIP switches the operating voltage of the slave unit de pends on the master unit settings The DIP switch settings are as follows Note The DIP switches are located at the upper left of the PCB in the Regenerative Braking Unit The switch numbers are indicated on the switch body DIP switch setting Seting Either ON or OFF is acceptable Now OFF OFF ON ON Master unit Operating voltage level Default setting Standard ON OFF ON ON Master unit Operating voltage level 5 ON ON ON ON Master unit Operating voltage level E EH E BE 10 1 2 3 4 OFF X X OFF ON ON Operating voltage of the Slave unit slave unit depends on the master unit settings 1 2 3 4 Chapter 3 Maintenance Operations 3 1 Precautions before Operation 3 1 3 2 When the Alarm Contact is Activated 3 2 3 3 When an Inverter Overvoltage Trip Occurs 3 3 Maintenance Operations BH 3 1 Precautions before Operation 3 1 Pre
18. 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 Read and Understand This Manual 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 l
19. OMRON M ER S MANUAL 3G3AX RBU Regenerative Braking Unit Introduction Introduction Thank you for choosing the Regenerative Braking Unit 3G3AX RBU This User s Manual hereinafter called this manual describes the installation wiring of the 3G3AX RBU model as well as troubleshooting and inspection methods This manual should be delivered to the actual end user of the product After reading this manual keep it handy for future reference This manual describes the specifications and functions of the product as well as the relations between them You should assume that anything not described in this manual is not possible with the product Intended readers This manual is intended for Those with knowledge of electrical systems qualified electrical engineers or the equivalent and also in charge of Introducing the control equipment Designing the control system Installing and or connecting the control equipment Field management Read and Understand This Manual Read and Understand This Manual Please read and understand this manual before using the product 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
20. Regen erative Braking Units as well as Inverter deceleration time Wire breakage in the Breaking Resistor incorrect wiring and or improper DIP switch settings can be also considered as a cause of an In verter overvoltage trip Use the flowchart to diagnose the problem Overvoltage trip occurs During Inverter deceleration is the operation LED indicator lit The Braking Resistor model selection is improper Review resistor selection or extend the inverter deceleration time There may be a wire breakage in the Braking Resistor 1 the operation LED indicator on YES the master unit or the unit in single operation unlit Are the DIP switches set to Are the DIP switches set to slave master YES Set the DIP YES Set the DIP switches to slave switches to master Be sure to wire correctly and securely Is wiring between the P and N terminals as well as the control circuit terminals connection correct The Regenerative Braking Unit is defective Replace or repair the unit 3 3 Chapter 4 Inspection Maintenance 4 1 Inspection and Maintenance 4 2 Daily Inspection and Periodic Inspection 4 3 Megger Test 4 4 Checking the Main Element 4 5 Capacitor Life Curve Inspection and Maintenance 4 1 Inspection and Maintenance 4 1 Inspection and Maintenance Daily Inspection Basically check the following during operation 1 There are no errors in the installation e
21. al Regenerative Braking Units are connected in parallel the length of the signal cables MA1 MA2 SL1 SL2 between individual Regenerative Braking Units must be 5 m or less and the cable size must be 0 75 mm or more Be sure to separate the signal cables from the main circuit cable Main circuit Signal cable cable 10 cm min 1 1 Wiring When multiple resistors are used in combination a voltage rise during switching is increased due to the internal inductive components of the resistor In this case increase the cable size or twist the cable For the Braking Resistor use a non inductive resistor Do not use six or more resistors in combina tion For connections on the PCB terminal block be sure to use crimp terminals with insulation coating a 2 5 To use the optional Braking Resistor select the model with combined resistance higher than the specified connectable resistance If a resistor whose resistance is less than the connectable resis tance is used it may result in a fault of the Regenerative Braking Unit Use thorough caution in re gards to the resistance When using these Braking Resistors be sure to remove the built in resistor 83G3AX RBU21 RBU22 RBU41 only Connectable resistance RBU21 17 Q min RBU22 17 Q min RBU23 4 0 min 4 2 Q min RBU41 34 Q min RBU42 10 min RBU43 6 Q min 1 2 Terminals EN 1 2 Terminals Design Terminal Pos
22. ation 8 o 9 Short time 4 Q min 2 min 10 Q min 6 O min operation Cycle 1 5 Cycle 1 5 Cycle 1 10 Cycle 1 5 E Allowable operation 2 min ON 2 min ON 10 s ON 2 min ON cycle Allowable 8 min OFF 8 min OFF 90 s OFF 8 min OFF 5 continuous ON time 2 min 2 min 10s 2 min Operating voltage ON 362 5 5 V OFF 355 5 725 5 V OFF 710 5V ON OFF 5 96 or 10 setting available 5 96 or 10 setting available Operation indication LED ON Lit Maximum number of units in parallel 2 units operation 2 o c Built in relay specifications S Built in power The temperature relay operates if the cooling fin reaches approx 100 C or more module overheat Rating of contact 240 V AC 3 A R load protection 36 V DC 2 A R load 5 VDC 50 mA R load o HS 10 C to 50 5 temperature 5 5 Rent storage 20 C to 65 C short time temperature during transport temperature c 5 Humidity 20 to 90 with no condensation c w Vibration 4 9 m s 0 5G 10 to 55 Hz 5 Location At a maximum altitude of 1000m indoors without corrosive gases or dust Paint color Munsell 5Y7 1 cooling fan aluminum ground color 1 use the Braking Resistor 3G3AX RAB RBB RBC for the 400 V class Regenerative Braking Unit be sure to connect two resistors of the same model in series
23. cautions before Operation 3 1 Before operation check the following items There is no incorrect wiring Incorrect wiring may result in damage or malfunction of the Regenerative Braking Unit Check for grounding of any terminal other than the ground terminal Improper grounding may result in damage or malfunction of the Regenerative Braking Unit Check for any short circuits caused by a wire scrap or crimp terminal left in the unit after wiring work A short circuit may result in damage or malfunction of the Regenerative Braking Unit There is no short circuit or ground fault A short circuit or ground fault may result in damage or malfunction of the Regenerative Braking Unit 3 2 When the Alarm Contact is Activated 3 2 When the Alarm Contact is Activated In principle the alarm contacts of the Regenerative Braking Unit are activated when the Braking Re sistor is overheated by excessive regenerative energy or frequent braking As a countermeasure review the capacity of the Braking Resistor model and number of Regener ative Braking Units as well as Inverter deceleration time Incorrect wiring and improper receiving voltage can be also considered as a cause of an alarm Use the flowchart to diagnose the problem Alarm contact is activated Is the main element IGBT YES defective 1 Regenerative Braking Unit is defective Replace or repair the unit NO Review the resistor selection YES Is
24. ct 250 V AC 200 mA R load 9 12V DC 500 mA R load 42V DC 200 mA R load a Minimum load 1 mA E Ambient 10 C to 50 C e temperature 5 Ambient storage 9 20 C to 65 C short time temperature during transport temperature gt Humidity 20 to 90 with no condensation Vibration 5 9 m s 0 6G 10 to 55 Hz Q O Location At a maximum altitude of 1000m indoors without corrosive gases or dust Paint color Munsell 5Y7 1 cooling fan aluminum ground color 1 use the Braking Resistor 3G3AX RAB RBB RBC for the 400 V class Regenerative Braking Unit be sure to remove the built in resistor and connect two resistors of the same model in series If the 400 V class Regenerative Braking Unit is operated with a single Braking Resistor the Braking Resistor may be damaged 2 Set the DIP switches 5 1 3 5 1 Standard Specification List The built in resistor has a thermal fuse If the alarm terminal is not connected the fuse may blow out in order to prevent the resistor from burning due to overheating If the fuse blows out the built in resistor must be replaced 5 2 5 Specifications 5 1 Standard Specification List Models without a Built in Resistor 3G3AX RBU23 RBU24 RBU42 RBU43 Voltage class 3 phase 200 V class 3 phase 400 V class Model 3G3AX RBU23 RBU24 RBU42 RBU43 9 EORUndoMus 6 Q min 4 Q min 24 Q min 12 Q min Oper
25. ecifications 1 4 Connection the optional Braking Resistor 3G3AX RBA RBB RBC is used The following is an example of connections using the Braking Resistor 3G3AX RBA RBB RBC Up to five units can be connected in parallel For parallel connection use Braking Resistors with the same resistance Be sure to remove the built in resistor from the bottom of the Regenerative Braking Unit For DIP switch settings refer to 2 1 DIP Switch Setting page 2 1 MC1 2 6 6 6 6 BSS RY e Inverter 6 UJ a z O N R O 0 3 phase on d gt V _ A MET T O 0 6 60 RBB RBC RBU22 1 p 6 Master MATMAZ R20 2 AL2 Q RBB RBC Alarm terminal internal connections 82 2 21 4 RBB RBC R10 ian 1 AL1 S R2 2 AL2 Built in resistance 2 0 0 2 P temperature relay 3G3AX RBA bpsti 512 ALI 2 RBB RBC Temperature relay L P 3G3AX RBU21 6 O 61 AL1 R IRBU22 R1 E Do 6 2 AL2 P O Slave R 1 2 O O 0 1 select RY check the coil and RY contact specifications built in resistor If the Braking Resistor 3G3AX RBA RBB RBC is used with the built in resistor connected it may cause the built in resisto
26. el in series If the 3G3AX RBU42 or RBU43 is operated with a single resistor the Braking Resistor may have a fault To prevent overheating be sure to connect the alarm contacts 1 AL1 and 2 AL2 of the Braking Resistor The models of 3G3AX RBU42 RBU43 do not have terminals for the alarm input R1 R2 Configure a sequence that enables the Inverter power to turn off when unusual overheating is detected A voltage of 800 V DC max is applied to the Braking Resistor Check the rated 1 To select RY check the MC coil and RY contact specifications 1 13 Chapter 2 Functions 2 1 DIP Switch Setting Functions 2 1 DIP Switch Setting 2 1 DIP Switch Setting Set up operating voltage level and parallel operation with the DIP switches Note Be sure to turn off the power supply before setting the DIP switches Operating voltage level setting SW1 SW2 The operating voltage of the Regenerative Braking Unit can be set at 3 levels Standard default setting 5 and 10 by the DIP switch settings This function is useful in preventing an overvoltage trip by lowering the operating voltage of the Re generative Braking Unit when an overvoltage trip occurs due to the receiving voltage deceleration time or other factor Depending on the receiving voltage however the Regenerative Braking Unit will operate continu ously even by just turning on the Inverter power supply When you change the D
27. en 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 princi ples 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 provi sion hereof is rendered ineffective or invalid such provision shall not invalidate any other prov
28. eunder including customs duties and sales excise use turnover and license taxes shall be charged to and remitted by Buyer to Omron 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 liabil ity and in addition to other remedies cancel any unshipped portion of Prod ucts 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 Cancellation Etc Orders are not subject to rescheduling or cancellation unless Buyer indemnifies Omron against all related costs or expenses 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 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 situati
29. fer to Installa no freezing H ome ment well as humidity tion Page 12 Ambient humidity 90 and dust levels max no condensa R d General tion ecorder Check that there Entire are no abnormal Visual or acoustic fa lts device vibrations or inspection sounds Disconnect the wir ings of the main and the control cir Megger test cuit terminals use between main a megger to mea 5 MO min dn sure the resistance circuit terminal Q be WESS Refer to 4 3 Megger and ground Test terminal ground terminal and the short cir cuited parts of main General circuit terminals P i mee RB and N 99 Check that any parts whieh may O Tighten securely Main need tightening circuit are secure Check that part has indica overheat 0 Visual inspection ing Check that there is no distortion Connec with the conduc toncon tor Visual inspection No faults ductor and wire Check that there is no tearing in the O wire coverings Terminal Check that there block iene d imaos Visual inspection No faults 4 2 eoueugjure y pue 4 Inspection and Maintenance 4 2 Daily Inspection and Periodic Inspection Inspection 0 period mape epee Inspection point Inspection method Criteria Meter tion part tion item 1 Daily year Visual inspection Cement resistor crack or discolor Q No fau
30. generative Braking Unit or terminals and do not check a signal wire put on or take off the connectors while the power is being supplied Doing so may result in a serious injury due to an electric shock or fire Do not remove the front cover during the power supply Doing so may result in a serious injury due to an electric shock Be sure to put on the front cover before turning on the input power Turn off the input power of the Inverter and wait for more than 10 minutes before changing wiring or operating the DIP switch Not doing so may result in a serious injury due to an electric shock lt lt lt lt lt Ob gt Safety Precautions CAUTION Place covers on the openings or take other precautions to make sure that no metal objects such as cutting bits or lead wire scraps go inside when installing and wiring Install a stop motion device to ensure safety Not doing so might result in a minor injury Be sure to use a specified type of Braking Resistor Regenerative Braking Unit In case of a Braking Resistor install a thermal relay that monitors the temperature of the Resistor Not doing so might result in a moderate burn due to the heat generated in the Braking Resistor Regenerative Braking Unit Configure a sequence that enables the Inverter power to turn off when unusual overheating is detected in the Braking Resistor Regenerative Braking Unit Do not connect Resistors to the DC terminals
31. he following is an example of connections using the Braking Resistor 3G3AX RBA RBB RBC Up to five units can be connected in parallel For parallel connection use Braking Resistors with the same resistance Be sure to remove the built in resistor from the bottom of the Regenerative Braking Unit o For DIP switch settings refer to 2 1 DIP Switch Setting page 2 1 p B 5 01 MC2 RY 1 BSS RY 200 V 50 60 Hz O bd uc 220 V 60 Hz ed Operation power supply 6 MCB 1 2 Inverter on R O O O O ORIL1 3 phase as 400 V iO OS L2 C T O10 O O OT L3 Master MA1MA2 9 O O O 1 AL1 RB 8 6 2 AL2 ge T O 3G3AX RBA RBB RBC Two resistors connected in series Alarm terminal internal connections 512 AL1 412 pg Q 3G3AX RBA PBC 3G3AX RBU41 0 Slave R20 O Built in resistance MA1MA2 temperature relay 3G3AX RBA RBB RBC Temperature relay O O O O OPSL1 512 AL1 AL2 pp Two resistors connected in series Sp O1 AL1 RB O LON 3G3AX RBU41 A2 AL2 Slave O R20 6 O1 AL1 RB O2 AL2 3G3AX RBA RBB RBC Two resistors connected in series MA1 2 O O 1 To select RY check the MC coil and RY contact specifications 1 10 Design 1 4 Connection eTo use the Braking Resistor
32. imitations 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 manual 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
33. ion and follow the instructions exactly Disconnect incoming power and wait 10 minutes before removing cover Be sure to ground the grounding terminals Ai B N CAUTION CU 5502 00 17 8 BUE HAZARD OF FIRE AND OR une Can cause a fire and or burns Install on the steel sheeting or other nonflammable material Hazardous heat 13 Checking Before Unpacking Checking Before Unpacking Checking the Product On delivery be sure to check that the delivered product is the Regenerative Braking Unit 3G3AX RBU model that you ordered Should you find any problems with the product immediately contact your nearest local sales representative or OMRON sales office Checking the Nameplate Regenerative Braking Unit model name REGENERATIVE BRAKING UNIT DC 200 400 V LOT NO 19208 S N 16206520000000 OMRON Corporation Voltage specifications NE17968 01 MADE IN JAPAN Checking the Model JGSAX RBU21 Serial number Maximum applicable motor capacity 2 200 V class 4 400 V class Regenerative Braking Unit Checking the Accessories Note that this manual is the only accessory included with the Regenerative Braking Unit 3G3AX RBU model Mounting screws and other necessary parts must be provided by the user 14 Revision History Revision History A manual revision code appears as a suffix to the catalog number located a
34. ision 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 Compa nies 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 Buyers 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 Prod uct 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 quantitie
35. ition and Arrangement The terminal arrangement on the Regenerative Braking Unit is shown below M3G3AX RBU21 RBU22 RBU41 N SL1 AL1 N RB SL1 2 RB SL2 AL2 Main circuit terminals screw size M4 Tightening torque 1 2 to 1 3 N m P P Control circuit terminals screw size M3 Tightening torque 0 6 to 0 9 N m MA1 MA2 Alarm terminals screw size M3 Tightening torque 0 5 to 0 6 N m R1 R2 Main circuit terminals screw size M5 Tightening torque 3 4 to 3 7 N m Control circuit terminals screw size M3 Tightening torque 0 6 to 0 9 N m 1 2 Terminals 23 43 EU Main circuit terminals screw size M8 Tightening torque 12 to 13 5 N m Control circuit terminals screw size M3 Tightening torque 0 6 to 0 9 N m SL2 MA1 Alarm terminals screw size M3 Tightening torque 0 6 to 0 9 N m ubisag gt 24 Main circuit terminals screw size M10 Tightening torque 25 to 28 N m el Control circuit terminals screw size M3 Tightening torque 0 6 to 0 9 N m SL1 SL2 MA1 MA2 Alarm terminals screw size M3 Tightening torque 0 5 to 0 6 N m AL2 AL1
36. ke sure that no metal objects such as cutting bits or lead wire scraps go inside when installing and wiring Install a stop motion device to ensure safety Not doing so might result in a minor injury Be sure to use a specified type of Braking Resistor Regenerative Braking Unit In case of a Braking Resistor install a thermal relay that monitors the temperature of the Resistor Not doing so might result in a moderate burn due to the heat generated in the Braking Resistor Regenerative Braking Unit Configure a sequence that enables the Inverter power to turn off when unusual overheating is detected in the Braking Resistor Regenerative Braking Unit A A 65 AN Do not connect Resistors to the DC terminals P directly Doing so might result in a small scale fire heat generation or damage to the unit Safety Precautions Operation WARNING Do not remove the front cover during the power supply and 10 minutes after the power shutoff Doing so may result in a serious injury due to an electric shock Do not operate the switches with wet hands Doing so may result in a serious injury due to an electric shock Do not touch the inside of the Regenerative Braking Unit or terminals and do not check a signal wire put on or take off the connectors while the power is being supplied Doing so may result in a serious injury due to an electric shock or fire
37. lt in an injury Precautions for Safe Use Precautions for Safe Use llinstallation and Storage Do not store or use the product in the following places Locations subject to direct sunlight Locations subject to ambient temperature exceeding the specifications Locations subject to relative humidity exceeding the specifications Locations subject to condensation due to severe temperature fluctuations Locations subject to corrosive or flammable gases Locations subject to exposure to combustibles Locations subject to dust especially iron dust or salt Locations subject to exposure to water oil or chemicals Locations subject to shock or vibration Transportation Installation and Wiring Observe the following instructions during transportation installation and wiring Do not drop or apply a strong impact on the product Doing so may result in damaged parts or malfunction Do not hold by the front cover but hold by the fins during transportation The specified wire size or larger one must be used for the power lines Model Connectable P RB N SL1 SL2 MM MA2 Ground wire 8G3AX resistance connection wires connection wires RBU21 17 Q min 3 5 mm min RBU22 17 Q min 3 5mm min 8 Q min 5 5 mm min RBU23 5107 9 Q 8 mm min 4104 9 0 14 mm min 4 min 14 mm min RBU24 3103 90 22 mm min 2102 9 0 38 mm min 0 75 mm min
38. lts wire wound resis ation tor etc Tester Main Resi Diai circuit esistor Disconnect one igita ro end of the cable Error must be within multimeter y and measure the 10 of the nominal wire breakage resistance using resistance tester Check that there Control are no errors in circuit Opera protection and Simulate the KS Stag Error is found in the se Protec tion display circuits protection circuit quence tion check through sequence output circuit protection operation Check that there are no abnormal General odors discolora O Visual inspection No faults tion or significant rusting Combo Check that there is no liquid leak 0 nents Smooth age ing ca No faults pacitor Check that the Visual inspection Standard replacement onthe Safety valve has period 5 years 1 PCB not come outand that there are no bulges 4 3 1 The life of the capacitor depends on ambient temperatures Refer to 4 5 Capacitor Life Curve Page 4 6 for the replacement reference Unit Do not conduct a withstand voltage test on any part of the Regenerative Braking The Regenerative Braking Unit uses semiconductors in the main circuit If the unit undergoes a withstand voltage test it may cause semiconductor deterioration 4 3 Megger Test Megger Test For a megger test of the external circuit be sure to disconnect all the terminals of the Regenerative
39. n Resistor 1 6 1 4 eT 1 7 1 1 Wiring EN 1 1 Wiring Design Correct example Incorrect example 1 1 For connections of the Regenerative Braking Unit Inverter and Braking Resistor P RB and N ter minals use cables with the following length Model Between Regenerative Braking Unitand Between Regenerative Braking Unit and 3G3AX Inverter Braking Resistor RBU21 5 max 5 2 5 5 3 4 50 RBU24 Braking BO aR RBU41 5m max 5m max RBU42 4 5 3 4 50 The wiring must be routed at the shortest distance Be sure not to coil up any surplus cables Doing so may cause a fault in the equipment The cable connected to the P and N terminals for wiring between the Regenerative Braking Unit and the Inverter as well as the cable connected to the P and RB terminals for wiring between the Regenerative Braking Unit and the Braking Resistor must be bundled with a tie band so that these cables are not placed at a distance Braking Resistor Inverter Regenerative Braking Unit In order to prevent the Braking Register in the Regenerative Braking Unit from burning due to over heating be sure to connect the alarm contacts AL1 and AL2 and provide a circuit to turn off the primary power supply for the Inverter When sever
40. nvironment 2 There are no errors in the cooling system 3 There are no abnormal vibrations or sounds 4 There are no abnormal overheat or discoloration 5 There are no abnormal odors Cleaning Always keep the Regenerative Braking Unit clean for operation Lightly remove any dirt with a soft cloth moistened with a neutral detergent Note Do not use such solutions as acetone benzene toluene or alcohol for cleaning Doing so may cause the Regenerative Braking Unit surface to dissolve or its coating to come off Periodic Inspection Check the parts that cannot be checked without stopping operation as well as those that require periodic inspection 1 2 lt Check that there are no errors in the cooling system Clean the air filter Check that all parts that need tightening are secure Screws and bolts may become loose because of vibration or temperature change Check that there is no corrosion or damage to the conductors and or insulators Measurement of insulation resistance Check and replace the capacitor 47 4 1 4 2 Daily Inspection and Periodic Inspection 4 2 Daily Inspection and Periodic Inspection Inspection 8 5 period hape hapse Inspection point Inspection method Criteria Meter tion part tion item 1 Daily year Ambient temperature Ambient Check ambient 10 C to 50 C Ster GIONE temperature as Re
41. on to the above warranty See http www omron247 com or contact your Omron representative for pub lished 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 inves tigation 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 and hold harmless Omron and defend or set tle 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 exclu sive property of Omron Companies and Buyer shall not attempt to duplicate it in any way without the writt
42. ons 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 oth erwise 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 inter est 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 nor mal handling and extra charges apply to special conditions 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 trans portation bill signed by the carrier noting that the carrier received the Products from Omron in the condition claimed 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 15 16 ITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS
43. or conditions proposed in Buyers purchase order or other documents which are inconsistent with or in addition to these Terms Prices Payment Terms All prices stated are current subject to change with out 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 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 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 Orders Omron will accept no order less than 200 net billing Governmental Approvals Buyer shall be responsible for and shall bear all costs involved in obtaining any government approvals required for the impor tation or sale of the Products Taxes 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 importa tion consumption or use of the Products sold her
44. r to burn due to overheating or result in an overheating detection failure when the Braking Resistor temperature relay is activated prevent overheating be sure to connect the alarm contacts 1 AL1 and 2 AL2 of the Braking Resistor i use the Braking Resistor 3G3AX RBA RBB RBC be sure to remove the 1 8 Design 1 4 Connection 3G3AX RBU41 Connection example When the built in resistor is used The following is an example of connections using the built in resistor Up to five units can be connected in parallel For DIP switch settings refer to 2 1 DIP Switch Setting page 2 1 MC1 2 RY 60 BSS RY 200 V 50 60 H dis uc 220 V 60 Hz Operation power supply 0 0 MCB MC1 2 Inverter CIA EN 0 0 0 0 01 0 3 phase On m A o OT L3 W T3 O O O O 2 0 gpstt 512 AL1 AL2 Rgd 3G3AX RBU41 p4 Master MAiMA2 R20 Alarm terminal internal connections 0 O O O O 0511 SL2 AL1AL2 ppd Built in resistance 363 si temperature relay MA1MA2 O O O O 0511 SL2 AL1AL2 ppd OP 3G3AX RBU41 Slave R1 R20 MA1MA2 O O 1 To select RY check the MC coil and RY contact specifications 1 9 1 4 Connection the optional Braking Resistor 3G3AX RBA RBB RBC is used T
45. s iii Energy control systems combustion systems railroad systems aviation Systems medical equipment amusement machines vehicles safety equip ment and installations subject to separate industry or government regulations iv Systems machines and equipment that could present a risk to life or prop erty Please know and observe all prohibitions of use applicable to this Prod uct 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 S PRODUCT IS PROP ERLY 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 suitabil ity 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 require ments 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 prac tice to change part numbers when published ratings or features are
46. t 5 1 5 2 Dimensional 5 5 Specifications 5 1 Standard Specification List 5 1 Standard Specification List Models with a Built in Resistor 3G3AX RBU21 RBU22 RBU41 Voltage class 3 phase 200 V class 3 phase 400 V class Model 3G3AX RBU21 RBU22 RBU41 Connectable resistance 17 min 17 Q min 34 Q min Operating voltage ON 725 5 V ON 362 5 5 V ON OFF OFF 355 5 V OFF 710 5 5 aes lano 5 96 or 10 setting available setting available Operation indication LED ON Lit Maximum number of units in parallel 5 units operation 2 Built in resistance 120W 180 120W 202 120 Ww 180 Q x 2 in series Nlowaple 105 0 55 105 tive ON time Allowable opera Cycle 1 10 Cycle 1 80 Cycle 1 10 tion cycle 10s ON 90s OFF 0 5s ON 40s OFF 10s ON 90s OFF a Power Instantaneous 0 73 kW Instantaneous 6 6 kW Instantaneous 1 46 kW consumption Short time rating 120 W Short time rating 120 W Short time rating 240 W 7 Built in relay specifications 5 The temperature relay operates if the built in resistor reaches approx 200 9 more and recovers at approx 170 C or less 2 Built in resistance Built in thermal fuse recovery impossible 3 g overheat protection Rating of conta
47. t specifications To prevent overheating be sure to connect the alarm contacts 1 AL1 and 2 AL2 N of the Braking Resistor The models of 3G3AX RBU23 RBU24 do not have terminals for the alarm input R1 R2 Configure a sequence that enables the Inverter power to turn off when unusual overheating is detected Design 1 4 Connection 3G3AX RBU42 RBU43 Connection Example When the optional Braking Resistor 3G3AX RBA RBB RBC is used The following is an example of connections using the Braking Resistor 3G3AX RBA RBB RBC Up to two units can be connected in parallel For parallel connection use Braking Resistors with the same resistance For DIP switch settings refer to 2 1 DIP Switch Setting page 2 1 1 MC1 MC2 200 V 50 60 Hz 220 V 60 Hz 0 0 O E BSS RY O O O Operation power supply c O MCB MC1 MC2 Inverter R 5 6 OR L1 _ 3 phase F 8 6 0 60 65 OS L2 vm 400 V T O 0 i SoS OT L3 W T3 7 2 gt 872 1 RBB RBC E 1AL1 RB 2 AL2 9 aE 0 Geo RBU43 Master aa MA2 0 0 0 0 2 ALI AL2 np RBB RBC 9R 3G3AX RBU42 RBU43 E 1AL1 a Slave 1 2 p 2 12 O O O dielectric strength of the resistor to be connected eTo use the optional Braking Resistor 3G3AX RBA RBB RBC be sure to connect two resistors of the same mod
48. t the lower left of the front and back covers 1569 61 01 p Revision code Revision Revision date Changes and revision pages code 01 April 2008 First printing 15 About This Manual About This Manual This User s Manual is compiled chapter by chapter for user s convenience as follows Understanding the following configuration ensures more effective use of the product 16 Chapter Overview Chapter1 Design Describes installation and wiring procedures terminal names and other information required for design Chapter 2 Functions Describes the DIP switch settings Maintenance Chapter 3 Operations Describes the analysis of possible trouble causes as well as troubleshooting methods Inspection and chapter4 Maintenance Describes items for periodic inspection and or maintenance for the product Chapter 5 Specifications Describes the product specifications and dimensions Contents TNR NEC NON 1 Read and Understand This 2 Safety Precautions 5 Precautions Tor 1 10 Precautions for Correct Use 12 Checking Before Unpacking 14 at 15 ADOUCThis sco end ode e ac aptae ees oou 16 Chapter
49. y but vertically only Rated Voltage Confirm that the rated voltage of the product is the same as that of the Inverter to be used 12 Precautions for Correct Use Product Disposal Comply with the local ordinance and regulations when disposing of the product Warning Labels Warning labels are located on the product as shown in the following illustration Be sure to follow the instructions Warning Description xe ae a a ROT ots NA YY YY NA NA NA NA NI NA gt m AWARNING UE ROBChBU 73 HAZAR OF PERSONAL INJURY OR ELECTRIC SHOCK Read the instruction manual carefully before installation and operation and follow the instructions exactly Disconnect incoming power and wait 10 minutes before removing cover Be sure to ground the grounding terminals AGE CAUTION KEOBENSY ee SESORRMIMAIT SC Bate GO no OF FIRE AND OR mm Can cause a fire and or burns Install the steel sheeting or other nonflammable material Hazardous heat A WARNING HN 50 9 IRR E eae RICHTIG E HAZARD OF PERSONAL INJURY OR ELECTRIC SHOCK Read the instruction manual carefully before installation and operat
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