R series Power and Regenerative Units User's Manual
Contents
1. Display section Display sign Power Lights ON when voltage outputs indication between P and N To access the terminal wait at lease one minute after this green LED lights OFF and input 100 VAC is disconnected Terminal section ground this terminal with low impedance earth item 3 or up Maim circuit AC power input of main circuit Supply power within 85 and 127 VAC Use 2 mm cable as 400 of output current flows AC power input Main circuit circuit DC power output to DC power servo drivers P as positive N as output negative outputs Be careful that this Display sign Frame ground of the unit Connect 100 VAC terminal supplies 2 2 220V 357 VDC of input voltage Caution Be sure not to short circuit output terminals and misconnect P and N terminals When output terminals are shorted the fuse inside the unit may blow or the unit may be damaged When P and N are connected in reverse output transistor module of servo driver may be broken 5 DESIGN 0 R88S R305 R88S R310 R88S R315 e Display section Display sign Power e omon 8885 2305 POWER SUPPLY Lights ON when voltage outputs indication between P and N To access the terminal wait at lease one minute after this green LED lights OFF and input 200 VAC is disconnected O POWER Terminal section Display sign GR Frame ground R S T Ma2. Ego W T operation cycle sec Generally there is energy loss by motor coiling resistance and actual value is approx 90 of above figure 6 2 6 REGENERATIVE ENERGY 6 2 Absorption of Regenerative Energy O Regenerative capacity inside the power unit Absorption capacity of regenerative energy of each power unit is as follows Allowable regenerative energy Average regenerative power RSSS R203 W R88S R205 12 W R88S R305 40 W Note 1 This figure is a general guide line Power consumption at main circuit DC current voltage 350 V with regenerative resistance 47 is 2 2 VZ 330 2 600 W R 47 This means that allowable absorption energy is 260 J Take an example of the following condition Motor capacity 1100 W Motor speed 4 000 rpm Deceleration torque 80 kgf cm Deceleration time 0 2 sec Regenerative energy with the conditions above is Tro 5N T 1 027 x 103 x 0 2 330 J However absorption is possible as far as it does not exceed average regenerative power Note 2 1 W 1 J S 1 cal 4 2 J In case of R88S R203 R205 R305 R310 R315 which does not have built in regenerative power absorption circuit when regenerative energy exceeds the rated value use the regenerative unit R88A RG50 In case of R88S R310G and R88A RG50 when regenerative energy exceeds the rated value add an external regenerative resistance Prior to installing the external regenerative resistance re
3. ee 4 1 4 2 Selection with Output Current csse Innen 4 2 5 DESIGN wierd Gere we eee ARAS AER 5 1 Install Btn i eere rrr Fare rra ua se aoa ies 5 1 5 1 1 Outside inside and installation dimensions of power units and regenerative 5 1 5 1 2 Installation condition eee 5 3 5 1 3 Wiring 5 4 5 2 Explanation of each 5 5 5 3 Connection with Support Equipment and External Equipment 5 9 5 3 1 Connection example sese Henn 5 9 5 3 2 Usage at 100 VAC input eee 5 10 5 3 3 Selection example of outer connecting eee 5 12 6 REGENERATIVE ENERGY e 6 1 6 1 Calculation of Regenerative Energy 6 1 6 2 Absorption of Regenerative Energy 6 3 NES CILE 7 1 7 1 Unpack LEER 7 1 7 2 Trial Henne 7 2 7 3 Cautions at Handling see Hn 7 3 8 8 1 8 1 Protection nmm 8 1 8 2 Troubleshooting cceeceececece scene mme meh Hee Henne 8 3 9 INNER CONSTRUCTION eee 9 9 1 Inner Block ceeeeeeenn en HH nme 9 1 9 2 Constants Figures of Rectifier Circuit 9 4 1 GENERAL R series power units are the following models in compliance with input voltage and output curr
4. OMRON USER S MANUAL In a MNUC R MODEL R88S R203 R205 R305 R310 R310G R315 MODEL R88A RG50 POWER UNIT FOR SERVO MOTOR REGENERATIVE UNIT FOR SERVO MOTOR Notes About Using This Manual 1 This manual describes in as much detail as possible the functions of the unit and relations with other units Items not described in this manual should be understood as unavailable 2 Though we have tried to create the manual optimum do not hesitate to contact our agent if you find anything difficult to understand 3 Inside the cover there are potentially dangerous parts If you open the cover serious problems may arise Never repair or disassemble the unit 4 We recommend adding the following precautions to your instruction manuals for unit installed systems This unit is high voltage equipment and dangerous to access Do not touch terminals of the unit after power is switched OFF as voltage remains 5 Specifications and functions may change without notice in order to improve performance INDEX ee E T GENERAL uu un itte east un cu 2 SPECIFICATIONS 2 1 2 1 General Hehe 2 1 2 2 Performance 2 1 3 MODEL DENOMINATION eee 3 1 4 SELECTION OF 4 4 1 Selection by Using Servo Motor Capacity
5. 5 DESIGN When regenerative energy exceeds the values shown in the table at previous page use R88S R203 R88S R205 or 88A RG50 and connect referring the connection figure below Single phase 9 100 VAC MCB Z Power unit R88S R203 2895 2291 Pover suss O Powe R88S R205 8885 3205 POWER surety Regenerative unit Servo driver R88A RG50 R88D RE RR e ommon omno 2984 2650 nOn FECENCPATION ORIVCA O Power Owen o z n z ara e 2220 Note Input the alarm output from the regenerative unit to the upper controller and use as 5 11 MC control of main circuit power input together with the servo driver alarm output 5 DESIGN 5 3 3 Selection example of outer connecting parts 1 No fuse breaker MCB Use a breaker having applicable current value for your system Never use one for semiconductor and one having characteristics for immediate response Use one with delay characteristics 62 2 2 to 20 sec at 200 load 2 Noise filter NF Single phase ZAG2220 11 P NFB2302H BE E OSA XA EM WM HA D 2A 30 LF 315K dA LF 325K 25 LF 305 ANE LF 310 wA LF 315 15 IF30 2A BEN 10A TD 0 s ZCW2205 01 ZCW2210 01 ZCW2220 01 3SUP ASJ E 3SUPAIU B 10A 3SUP AISIE 15A OKAYA ELECTRIC IND 3 M
6. R885 R310G Outside dimensions 240 or less Panel installation dimensions Installation dimensions 4 4 or MS screw 4 4 or MS screw t 27052 na Hostis 50 85 5 2 5 DESIGN 5 1 2 Installation condition Power unit and regenerative unit 1 Follow the installation diagram below while installing the unit 100ma 3 a o 2 o A Regenerative unit Servo driver Servo driver Side surface of the unit 1000m Elevation Side elevation w N s NGN N Analog input type driver Pulse train input type driver Model Wedimension R88D RBO4 RBOS RB10 0 mm or up R88D RR04 RROS RR10 0 mm Close instal Close instal lation available lation available R88D RB15 RB20 RRD RRIS RR20 2 Install the AC servo driver in a vertical direction 3 The inside temperature of the unit may increase by approx 30 C Temperature of the regenerative unit may increase approx 40 C Therefore keep away from other equipment and wiring which tends to be thermally affected 4 While installing the units in a box take measures such as installing forced cooling fan or air conditioner in order not to increase environmental temperature by more than _ 55 5 Operating environmental conditions Operation ambient temperature 0 to 55 C Operating ambient humidity 35 to 85 RH without dew condensation Storage ambient temperature 10 to 75 C Storag
7. Check this operation at tum OFF power 5 Again input AC power to the main circuit and adjust the driver See the description of servo driver adjustment 6 The power unit becomes 50 VDC one minute after shutting off power supply However it takes another few minutes to completely discharge Do not short terminals during this interval as spark may occur 7 2 7 OPERATION 7 3 Cautions at Handling 1 Do not short circuit outputs of the power unit while in operation Short circuit makes large current flow by the inside smoothing capacitor and spark may arise 2 Do not misconnect polarity of the main circuit DC power output P and N Reverse connection brings same condition of short circuit through an inverter fly wheel diode and the inverter may be broken The power unit may be also damaged by line impedance due to short current flow toa rush current prevention resistance and relay contactors 3 Soon after suhtting off supply power to the power unit it generates approx 350 V DC voltage Touching P and N terminals is dangerous as electrical shock and burn may occur Do not touch P and N terminals within one minute after shutting off power 4 Do not switch ON and OFF power to the unit frequently Wait at shortest one minute after turning OFF power Frequent tuming power ON and OFF power will head the rush current prevention resistance the inside temperature fuse may blow and rush current prevention function become ineffective
8. prepare a larger capacity Normal operation 9 INNER CONSTRUCTION 9 1 Inner Block O R88S R203 R88S R205 Single phase 100 VAC cl Lil Lif Lhd 44 DC voltage output Ll LA Lhd Lil prevention relay actuation circuit Fuse element FUSE Electric capacity between P andN _ 1 5004F 3 000uF 3 9 20W Capacitor Rush current Discharge C prevention resistance resistance 1 9 1 9 INNER CONSTRUCTION C R88S R305 R88S R310 R88S R315 DC voltage output Fuse element F1 F2 Electric Rush current Discharge capacity prevention resistance between P resistance Rj and N 9 2 9 INNER CONSTRUCTION CO R88S R310G O R88A RG50 Regenerative power control circuit 470 X5 Rush current prevention relay actuation circuit and regenerative power control circuit 9 INNER CONSTRUCTION 9 2 Constants Figures of Rectifier Circuit 1 Constants figures of single phase full wave rectifier circuit secondary voltage secondary voltage voltage Transformer primary Ii Arms E ek 2 voltage Transformer mean capacity Rectifier element initial voltage Note 1 w means coiling ratio n Note 2 Rs is supply power impedance looking at transformer secondary side 9 INNER CONSTRUCTION 3 phase full wave rectifier cir
9. 5 R88M R82030 R88M RIKI30 R88M R06030 sow 20 _ mw Resm R11030 uow 15 ww Get total amout of nominal capacity with the formula below so that required main circuit DC current can be given IA Example 2 sets of R88M R20030 1 set of R88M R11030 When 1 set of R88M R30030 is used its nominal capacity is Y Wa 220 x 2 165 300 905 W Required main circuit current is 4 53 Therefore required power unit is R88S R305 or R88S R205 In case of single phase 200 V is used the required power unit should be R88S R310 means current values with single phase input R88S R203 Single phase 100 V 5A UE TE 885 305 3 phase 200 V single phase 200 V Note Above calculation is simple selection method based on rated torque of motors To select the optimum power unit for a system see item 4 2 the selection with output current 4 1 4 SELECTION OF MODELS 4 2 Selection with Output Current O Difference of output current with each system Power and current to be supplied to servo driver is as follows 1 In case of horizontal installation of motor N a Rotation speed b Output torque c Motor output d Main circuit current In case of horizontal installation of motor the motor output at operation a is given by the formula below lt 1 027 NT x 102 N No of rotation rpm T Outpu
10. 5 mm single width at 10 to 150 Hz 10 G orless at peak acceleration for each 3 times for X Y and Z directions 2 2 Performance Specification 0 R88S R203 R88S R205 Fu 885 203 R88S R205 Input power voltage Single phase 100 V 110 V 50 60 Hz Voltage doubler rectification system Required input power capacity 2 000 VA Input power factor cos 0 75 cosh 0 75 Regenerative absorption power 30 J 60 J capacity Average regenerative power capacity Heating value at 110 V 22 W Fuse capacity EA Capacitor capacity between P and 1 640 uF 3 000 uF L 23kg Note 1 Above power factors are for reference only They may vary by input power impedance Note 2 1 W 117 5 1 cal 4 2 7 2 1 2 SPECIFICATIONS R88S R310G I R88S R305 R88S R310 R88S R315 R88S R310G Item Model R88S R88S R88S R305 R310 R315 Three phase or single phase 200 V 220 V 50 60 Hz 170 V to 253 V AC 220 V to 356 V DC Output current at three phase 6A 10 input Output current at single phase 3A 5 TA 5 input 1882 Input current at three phase input 18 12 Input current at single phase 6A 10 15 10 input 2 700 VA 5 000VA 7 500 5 000 VA 1 300 2 700 VA 3 300 V 2 700 Power factor at three phase input cosh 0 6 Regenerative absorption power 207 40 J 65 200 J capacity Average regenerative
11. Asa result parts may be damaged 5 For the power unit do not use less than 85 of the rated AC power supply voltage to the main circuit Low supply voltage may not actuate relays in the rush current prevention circuit Accordingly the temperature fuse of the rush current prevention resistance in above item 4 may blow 7 3 8 MAINTENANCE 8 1 Protection Functions Operation indication Indicates that the main circuit AC power is supplied Power indication When DC output voltage still exists after power OFF it lights dimly Access the unit for maintenance after this indication completely turns OFF R88S R310G and 88 50 have the following REGEN indication beside the POWER indication REGEN Indicates that the power unit receives regenerative power from a servo Regenerative driver and executes regenerative operation indication R88S R310G indicates this LED even after AC power is OFF as it discharges electric load in the smoothing capacitor Protective function The power unit has the following protective functions Main circuit fuse Blow when excessive current flows in Output lines are shorted the main circuit Long time operation with over the rated continuous output current Temperature rise of Temperature of the radiation fin Load current over at high radiation fin exceed 85 C and ALM contact opens ambient temperature due to temperature rise of the main Exceed regenera
12. agnet relay MC Mfg massa m O LCIDIGAG 184 OMRON 5 DESIGN 4 Surge absorber ZNR ERZAELATI MATSUSHITA ELECTRIC ERZ A2SELAT 5 Surge killer OKAYA ELECTRIC IND 5 13 6 REGENERATIVE ENERGY 6 1 Calculation of Regenerative Energy 1 In case of horizontal axis TN Motor operation Motor output torque As shown above regenerative energy occurs when motor output torque becomes negative Regenerative energy in each section is given in the formula below Egi Ni To tix 1 027 x 102 J Ego 5 Tp tox 1 027 x 102 J N Number of motor revolutions at triggering deceleration rpm Tp Required deceleration torque ti t2 Deceleration interval sec Average regenerative power is given in the formula below Eg W T operation cycle sec Generally there is energy loss by motor coiling resistance and actual value is approx 90 of above figure 6 REGENERATIVE ENERGY 2 In case of vertical axis N Rise Motor operation Down Motor output In the above movement regenerative energy occurs while motor output torque becomes negative Regenerative energies in each section is given by the formula below Egi Ni Tto ti x 1 027 x 102 J Eg Ivi t2 x 1 027 x 102 J Egs 5 2 2 Tou f x 1 027 x 10 I Average regenerative power is given in the formula below Eg
13. cuit When 3 phase transformer is used connect with A Y and Y A Connection to Y Y causes inbalance of excitation Voltage and current at A connection are as follows Voltage between wires E Phase voltage Ej Cable current 1 L1 4 3 phase current Voltage and current at Y connection are as follows Voltage between wires E L2 Y3 Phase voltage E2 Cable current 1 L2 Phase current 12 Constant figures of 3 phase full wave rectifier circuit at AY connection Voltage between secondary lines EL 0 74 Secondary phase voltage E2 Vims 0 43 Secondary lin current b Acus 0 82 Iac Primary phase voltage Vrms nE2 0 43nEac Primary phase current I Arms n 0 82 Ian Primary line current ILi Ti 1 42 Ia n pos mean 1 5 Iac 2 1 214 Rectifier element inital voltage Vpp V 1 05Eac Rush current V2 V Lo Rs Note 1 n means coiling ratio Note 2 Rs is supply power impedance looking at transformer secondary side
14. e ambient humidity 35 to 85 RH without dew condensation 6 Be careful to install the unit in the environment without increasing temperature 7 Be careful not to let metal powder oil mist or water enter the unit 8 Be careful not to let metal powder enter the unit while installing 5 3 5 DESIGN 5 1 3 Wiring 1 Earth line Wire earth line ground line as follows so that the total system secures noiseproof characteristics Noise filter Input AC line 3 phase or single phase Power unit Servo driver Servo driver One point earth terminal Green 2 mm or up Note 1 Do not insert earthing line into the same ducts of signal lines nor bundle then together Note 2 In case of wiring in metal conduits and ducts connect metal body with A 2 Wiring and cable size Connection Name Cable size Color terminal Main circuit power input P N Main circuit DC power output 2 0mm2 P RedN Blue or black External regenerative resistance 1 25 mm RG Frame GND Note 1 Above figures show that HIV thermal proof vinyl cable 75 C is used at ambient temperature 55 C Note 2 In order not to miswire main circuit DC power output use red colored cable for P and blue or black colored cable for N 5 DESIGN 5 2 Explanation of each section R88S R203 R88S R205 e omacn 9885 8203 POWER SUPPLY Power 04261
15. en P and N To access the terminal wait until this green LED lights OFF completely When voltage rises between P and N due to motor regenerative operation To lower voltage regenerative circuit works This LED lights when current flows to the regenerative resistance Indication of regenerative operation Terminal section Display sign GR Frame Frame ground of the unit Connect ground this terminal with low impedance earth item 3 or up ALM Alarm output This contact opens when temperature of the unit radiation fin exceeds 90 3 C External When a separate regenerative regenerative resistance is installed outside the resistance unit connect it with this terminal connection and P Be sure to remove a short bar between JP and RG Terminal for the inside regenerative resistance Prior to use this resistance be sure to short JP and RG with short bar At delivery the unit is arranged to use the inside regenerative resistance Main circuit Main circuit DC power output to DC power servo drivers Connect P and N of the power unit regenerative resistance Caution Be sure not to short circuit output terminals or misconnect P and N terminals When output terminals are shorted the fuse inside the unit may blow or the unit may be damaged When P and N are connected in reverse output transistor module of servo driver ma
16. ent 100 V single phase R88S R310G R88S R315 15 A 7A Figures in refer to output at single phase 200 V 3 phase or single phase R88S R310G has built in regenerative absorption circuit When regenerative power is more than the installed power unit use separate type regenerative unit R88A RG50 O Feature of this power unit series 1 No need to input power transformer as units have rush current preventive circuit 2 Small ripple voltage thanks to large capacity smoothing capacitor decreased torque ripple and beat phenomena 3 Optimum configuration of each system available by getting suitable input voltage and output current unit 200 VAC d i 100 VAC 6 E lt AC servo motor Aj No transformer power unit AC servo driver 1 1 X lt 2 Y 5 SPECIFICATIONS 2 General Specifications Operating ambient temperature Operating ambient humidity 35 to 8596 RH without dew condensation Storage ambient temperature and 10 to 75 C and 35 to 8596 RH without dew humidity condensation Without corrosive gas Structure 1 Installin a board Insulation resistance 5 MQ or up at 1 000 VDC megger between an outside terminal and the case One minute at 1 500 VAC 50 60 Hz between and outside terminal and the case Vibration proof Lighter case between 2G and 0 1
17. he description of servo driver trial operation 1 Check that polarity of main circuit DC power P and N is connected correctly Miswiring may break servo drivers 2 In case of R88S R203 and R88S R205 input voltage range is single phase 85 to 127 VAC Inputting 200 V type power would broke the unit as well as the driver 3 Input voltage of R88S R305 R88S R310 R88S R315 and R88S R310G are 3 phase or single phase 170 to 253 VAC 4 Make a sequence circuit to shut off supply power to the power unit by abnormal signal from the servo driver 5 At trial operation disassemble the motor shaft from a mechanical section If disassembly is unavailable be ready to execute emergency stop any time O Put on power 1 Input power to the servo driver and check that there is no abnormality Then input power to the power unit 2 Check that the power indication LED on the power unit lights If it does not light check supply power 3 While the system is in no load condition the main circuit DC power voltage P and N should be 240 to 350 VDC Check this voltage 4 After above checking turn OFF power once In this stage the power unit discharge voltage stored in a smoothing capacitor in the main circuit DC power through an inside resistance It becomes 50 VDC or less after one minutes Do not touch terminals while this discharge operation In case of R88S R310G REGEN LED flickers and discharge this voltage through the regenerative circuit
18. in circuit 200 220 VAC Frame ground of the unit Connect this terminal with low impedance earth item 3 or up AC power input of main circuit Supply power within 170 and 253 VAC Main circuit DC power output to AC power input Main circuit DC power servo drivers P as positive as output negative outputs Be careful that this terminal supplies 42 of input voltage Caution Be sure not to short circuit output terminals and misconnect P and N terminals When output terminals are shorted fuse inside the unit may blow or the unit is damaged When P and N are connected reverse output transistor module of servo driver may be broken 5 6 5 DESIGN O R88S R310G Display section POWER Power Lights ON when voltage outputs indication between P and N To access the terminal wait at lease one minute after this green LED lights OFF and input 200 VAC is disconnected When voltage rises between P and N due to motor regenerative operation To lower voltage regenerative circuit works This LED lights when current flows to the regenerative resistance gt omron 8885 2310G POWER SUPPLY O Power Indication of regenerative operation O REGEN DAMACA maw vatist M 001 ear foe e Terminal section Display sign Frame Frame ground of the unit Connect ground this termi
19. move a short bar between JP and RG terminals and connect the external regenerative resistance between P and RG 6 REGENERATIVE ENERGY External regenerative resistance The following resistance are available Select and order in accordance with regenerative capacity while checking delivery terms Model Mfg Nominal Power Radiation capacity at condition 120 C CF220N470K OW 60W T1 0 SPCC 350 X 350 CHIBA OHM CO LTD 200W 754 350 350 SURE dd 350 X 350 E 350 X 350 e o 350 X 350 MLS20L470K 20 80W T1 0 SPCC 350 X 350 MLC301470K 30 110W T1 0 SPCC 350 X 350 LTD 350 X 350 In order to prevent smoke and fire due to thermal produced by resistance we recommend N N MICRON INSTRUMENTS INC to use thermal switch or temperature fuse installed types Installation of a thermal switch near by the resistance has same function Set actuating temperature considering surrounding condition 6 4 7 OPERATION 7 1 Unpack Check the following points at unpack the case e There is no difference between delivered items and ordered items There is no damage due to transportation All accessories are delivered Accessories packed in vinyl bag 2 pcs of fitting metal 4 pcs of fitting screws M4 x 6 Spare fuse R88S R310G Note R88A RG50 is not delivered spare fuse element 7 1 7 OPERATION 7 2 Trial Operation Check item prior to operation Also see t
20. nal with low impedance E E earth item 3 or up Maim circuit AC power input of main circuit 200 220 VAC AC power Supply power within 170 and 253 input VAC ALM Alarm output This contact opens when 227 exceeds 85 3 External When a separate regenerative resistance is installed outside the unit connect it with this terminal and P Be sure to remove a short bar between JP and RG Terminal for the inside regenerative resistance Prior to use this resistance be sure to short JP and RG with short bar At delivery the unit is arranged to use the inside regenerative resistance Main circuit DC power output to servo drivers P as positive N as negative outputs Be careful that this terminal supplies A2 of input voltage regenerative resistance connection terminal Inside regenerative resistance terminal Main circuit DC power output Caution Be sure not to short circuit output terminals and misconnect P and N terminals When output terminals are shorted fuse inside the unit may blow or the unit may be damaged When P and N are connected in reverse output transistor module of servo driver may be broken 5 DESIGN 88 50 ommon RBBA RGSO REGENERATION UNIT O power O REGEN P O te ss Testa NM AFTER POLI tore Display section POWER Power Lights ON when voltage outputs indication betwe
21. p torque 12 I3 given by output torque and main circuit current in 4 4 S 3 Compare this Irms with output current value of each power unit in 4 4 and select a power unit so that the Irms becomess less than the output current value Main circuit DC current A Main circuit DC current A Main circuit DC current A R88M R10030 5 0 2 4 6 4 SELECTION OF MODELS L1 Output torque and main circuit DC current Main circuit DC current varies in compliance with motor output torque and number of rotation Output torque and main circuit DC curret at each number of rotation are shown below R88M R06030 2 4 6 8 10 12 14 Output torque kgf cm 10 12 14 Output torque kgf crn R88M R30030 0 5 10 15 20 25 30 35 Output torque kgf cm Main circuit DC current A Main circuit DC current A Main circuit DC current A 4 4 R88M R11030 5 0 2 4 6 8 10 12 14 Output torque kgf cm R88M R20030 0 5 10 15 20 25 Output torque kgf cm R88M R45030 10 4 SELECTION OF MODELS R88M R60030 RB8M R82030 Main circuit DC current Main circuit DC current 40 60 80 Output torque kgf cm RB8M RIK130 Main circuit DC current A J 1 0 20 40 60 86 100 Output torque kgf cm Note These values of main circuit DC current are for when voltages are 280 VDC 3 phase 200 VAC When the main circuit voltage decreases the current will inc
22. power 5 W 10 W 15 W 20 W capacity 23W Heating value at 220 V 23 W t2 Capacitor capacity 1 100 pF 2 350 uF 3 760 2 350 1 6 kgf Note 1 Above power factors are for reference only They may vary by input power impedance Note 2 Rush current may vary with input power impedance Note 2 1 W 1 J S 1 cal 4 2 J R88A RG50 capacity capacity voltage voltage Heating value at no operation of 4W regente 220 1 6 kgf 2 2 3 MODEL DENOMINATION Power unit Model R88S R 3 10 G NEMO specification G Integrated regenerative power absorption circuit Output current of nominal value Max output 3A SA 10A 15 current Means number of input power phase 2 Single doubled voltage rectifier 3 3 phase Means R series Means power unit Regenerative unit Model R88A R G 50 Regenerative power capacity Average regenerative 40 W power capacity Means regenerative unit Means R series Means support unit of servo system 3 1 4 SELECTION OF MODELS 4 1 Selection by Using Servo Motor Capacity Multiply the figures for each model for respecitive motor capacities and total the results Model Figure coefficient Nominal capacity Wa R88M R10030 pow 14 140 W R88M R20030 200 W 220 W 1 4 1 1 R88M R30030 R88M R45030 R88M R60030 1 0 2 0 1
23. rease in proportion to decreasing rate of the voltage and vice versa 4 5 4 SELECTION OF MODELS The table below shows rated torques main circuit DC current at the rated rotation speed of motors as well as main circuit DC current at instantaneous max torque while in the rated rotation speed Main circuit voltage 280 VDC Number of rotation 3 000 rpm Motor model At rated torque At instantaneouns max torque R88M ROG030 RS8M R11030 82A Note 1 Above figures are standard value and 10 allowance should be considered R88M R45030 Note 2 The servo system increases main circuit current when main circuit voltage decreases and vice versa as it has fixed output power system Note 3 Use as much current capacity cables as possible in order to endure required current at instantaneous max torque and considering voltage drop Note 4 Design a system to make acceleration zone instantaneous max torque becomes shorter than one second Too long in this zone may cause fuse to blow 4 6 5 DESIGN 5 1 Installation 5 1 1 Outside inside and installation dimensions of power units and regenerative units DI R88S R203 R88S R305 R88A RGS0 Outside dimensions e Omron 9885 2305 SUPALY 250 270 280 Panel installation dimensions Installation dimensions 4 4 or M5 screw 4 M4 or M5 screw MAN 260 2702 270 2 5 DESIGN D R88S R205 R88S R310 R88S R315
24. t torque Motor output becomes shown in figure c Negative zone is regenerative energy and is not supplied from input power Therefore actual output current becomes smaller The main circuit current becomes as the above d It is given by the formula below in ty 1220 Irms 5 EZ GE A Compare this Irms value with output current of each power unit nominated in 4 1 and select power unit that Irms value is below the selected power unit To get 11 and 12 see the curb for output torque and main circuit DC current in 4 4 Example Using a motor R88M R20030 when is 15 kgf cm at 3 000 rpm becomes 3A 4 2 4 SELECTION OF MODELS 2 In case of vertical installation of motor TN a Rotation speed b Output torque c Motor output egenerative power la d Main circuit current In case of vertical installation of a motor holding current flows even at stop rotation When regenerative energy is down there is no power consumption from input power Actual current of output current can be given as the same procedure of horizontal installation As such servo system having start and stop operation needs only small main circuit DC current compared with actual output torque and the power unit does not need much output current Actual circuit current of d shown above can be derived from the formula below Ij 5 Q2 TH t2 13 ts 1 14 142 141 112 ts to Il sto
25. tive circuit rectifier or the regenerative capacity resistance Installed fuse element of each model is as follows Power unit model R88S R203 R88S R205 R88S R305 R88S R310 R88S R315 R88S R310G R88A RG50 MF6INR 250V 5A 8 1 8 MAINTENANCE The curbs below show fuse element blow characteristics These characteristics are typical ones Blow time sec 5 7 10 20 30 40 50 70 100 200 30 Current A 8 MAINTENANCE 8 2 Troubleshooting When a trouble occurs while in operation check causes and recover referring to the flow chart below Power unit Put ON power Light OFF Main circuit fuse blows Power indication Check short circuit LED lights Check fuse Lights Contact with our service center Too slow voltage down of the main cirucit DC output P and N Malfunction of regenerative Does not Check flicker of egenerative indication Flickers Put ON power Abnormal output works Regenerative indication LED works well Using the unit exceeding the continuous output current Change to a larger capacity unit or Regenerative processing capacity overs Install a unit exclusive for a motor or prepare a larger capacity unit Abnormal output works Regenerative indication LED doesn t work well Over the limit of load current Install another unit exclusive for a motor or
26. y be broken 5 8 5 DESIGN 5 3 Connection with Support Equipment and External Equipment 5 3 1 Connection example 3 phase 200 V or single phase 200 100 V 50 60Hz Earth penuh MCB 3 n Serge absorber Tue DC power unit zi AC 24V Noise AC Alarm output P To other servo driver To main circuit DC power ON 24 MC E OFF Alarm output Le 96 Power unit Emergency alarm output stop 5 2 2 Ee 5 Serge suppressor Servo driver 88D Servo motor R88M R OV Note Power units without built in regenerative power absorption circuit have no abnormal output terminal ALM and regenerative resistance terminal 5 9 5 DESIGN 5 3 2 Usage at 100 VAC input Input power voltage of servo drivers are unified to 200 V However operation with 100 VAC using R88S R203 and R88S R205 power units is available Then connection diagram is shown below ower unit Power uni Servo driver R88S R20D R88D RB RR e omnon R88D omon 885 8203 C AC SERVO DRIVER POWER SUPPLY O Power O POWER MCB A Single phase di Noise 100 VAC fiter Ground earth GR 77 When an alarm occurs at the servo driver with connection above be sure to tum OFF RUN command Note 1 Control power input is usable 220 VDC to 360 VDC Note 2 Use servo drivers not to exceed control power input voltage more than 360 VDC 5 10
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