ACS306 - Leadshine
Contents
1. Maximum Pulse Input Frequency Maximum Pulse Input Frequency is the highest frequency at which the drive can Tel 86 755 26434369 19 Website www leadshine com A Leadshine Technology Co Ltd se ACS306 Digital AC Servo drive Manual Rev1 0 interpret encoder feedback To convert this frequency to RPM use the following formula RPM n es ee EncoderLines X 4 Motor Speed Calculation The motor speed can be calculated as the following formula adin e EncoderLines x 4 Tel 86 755 26434369 20 Website www leadshine com A Leadshine Technology Co Ltd APPENDIX TWELVE MONTH LIMITED WARRANTY Leadshine Technology Co Ltd warrants its products against defects in materials and workmanship for a period of 12 months from shipping date During the warranty period Leadshine will either at its option repair or replace products which proved to be defective EXCLUSIONS The above warranty shall not apply to defects resulting from improper or inadequate handling by customer improper or inadequate customer wiring unauthorized modification or misuse or operation beyond the electrical specifications of the product and or operation beyond environmental specifications for the product OBTAINING WARRANTY SERVICE To obtain warranty service a returned material authorization number RMA must be obtained from customer service at e mail tech leadshine com before returni2. _ s eer er er er er ee es Controller ACS306 O R 0 if VCC 5V R 1K Power gt 0 125W if VCC 12V R 2K Power gt 0 125W if VCC 24V R must be connected to control signal terminal Figure 3 2 Connections to controller with common anode outputs Alarm Signal Connections The ACS306 has 1 OC open collector output for alarm fault output In figure 2 input circuit for these control signals and connections to a typical motion controller is illustrated Figure 3 3 illustrates connections to the controller with alarm signal outputs Controller Digital input Fault input Figure 3 3 Connections to controller with alarm signal outputs Encoder and Hall Sensor Connections The ACS306 can accept both incremental encoder and hall effect sensor inputs for motor shaft position feedbacks Note that twisted pair shielded cabling provides the best immunity in electrically noisy environments The ACS306 has the 5V power to supply the encoder amp hall sensor If the encoder Tel 86 755 26434369 7 Website www leadshine com A pai ACS306 Digital AC Servo drive Manual Rev1 0 and hall sensor drains less than 100mA the ACS306 can supply them directly and connect it as Figure 3 4 If the encoder drains more than 50mA use an external DC supply and connect it as Figure 3 5 m Ground 5V EA EA ACS306 seins Encoder amp EZ EZ Hall sensor HV HW Figure 3 4 The ACS306 supplies the encoder
3. Peak Current 15A Continuous Current 6 A Max 10 200 W FOC SVPWM technologies PC based and handheld configuration tools Electronic gear rate from 1 255 to 255 Self test function with trapezoidal velocity profile Support PUL DIR and CW CCW control signals Opto isolated support single ended and differential inputs Following error lock range adjustable Over voltage over current encoder failure protections 10 latest failures self record function Small size surface mount technology Tel 86 755 26434369 1 Website www leadshine com i Leadshine Technology Co Ltd se ACS306 Digital AC Servo drive Manual Rev1 0 Applications Suitable for large and medium automation machines and equipments such as inkjet printers engraving machines electronic manufacturing equipments special NC machines pick and place devices packing devices and so on Particularly adapt to the applications require high speed high precision and low motor noise 2 Specifications and Operating Environment Electrical Specifications T 25 C 77F 7 10 16 mA 0 200 kHz 500 MQ z 7 100 mA Performance Specifications with BLM Series Motors Position following error 1 count Velocity accuracy 2rpm Maximum acceleration speed No Load 80 rpm ms Allowable low speed reaches1 rpm Positioning accuracy 1 count Maximum speed 3000 rpm Suitable for 20 30 VDC AC
4. 86 755 26434369 14 Website www leadshine com A Leadshine Technology Co Ltd paa g ACS306 Digital AC Servo drive Manual Rev1 0 the supply has enough capacity To avoid cross interference DO NOT daisy chain the power supply input pins of the drives Instead please connect them to power supply separately 5 Tuning the Servo Testing the Servo You may wish to secure the motor so it can t jump off the bench Turn on the power supply the green Power LED will light The ACS306 has default parameters stored in the drive If the system has no hardware and wirings problem the motor should be locked and the drive should be ready If the motor jumps slightly and the red LED immediately turns on flickers then either the motor or the encoder is wired in reversal Open the tuning software ProTuner and check drive status by clicking Err_check If its Phase Error then exchange motor wires or encoder inputs and try again If it s Encoder Error please check encoder and its wirings and then try again If it still doesn t work after you followed all of the previous steps please contact us at tech leadshine com If the red LED is off and the motor is normal then you can start to tune the servo with selected tool PC based tuning software ProTuner and handheld small servo tuning unit STU are available for the ACS306 Tuning the Servo A servo system is error driven The Gain of the system determines how hard the servo tr
5. DC servo motors Tel 86 755 26434369 2 Website www leadshine com A Leadshine Technology Co Ltd Ra i Leadshine Technology Co Ltd 8 ACS306 Digital AC Servo drive Manual Rev1 0 ACS306 Digital AC Servo drive Manual Rev1 0 Mechanical Specifications unit mm inch 3 Connections 109 4 295 Connector Configuration General Information 26 5 1 044 Feedback Signal Connector warty i ea T 109 4 295 EA Encoder channel A input channel B input I E Signal ground GND E Hall sensor W input I N 5 Hall sensor U input I D Ground terminal for shielded GND X Reserve I Reserve I Hall sensor V input I Figure 2 1 Mechanical specifications Not Connected Elimination of Heat Encoder channel A input I Encoder channel B input I 5V 100 mA max O Not Connected Not Connected l Drive s reliable working temperature should be lt 70 C 158 F and motor working temperature should be lt 80 C 176 F It is recommended to mount the drive vertically to maximize heat sink area Operating Environment and Parameters Pulse signal input Pulse signal input Direction signal input 40 RH 90 RH Direction signal input Enable signal input 20 C 65 C 4 F 149 F Enable signal input Alarm fault signal Alarm fault signal OO m m m m ee Tel 86 755 26434369 3 Website www leadshine com Tel 86 755 26434369 4 Webs
6. directly DC power supply VCC EGND Ground 5V EA EA ACS306 EB EB EZ EZ Encoder amp Hall sensor Figure 3 5 Using external DC power supply to supply the encoder RS232 Interface Connection 1 PC with Protuner ACS306 2 STU ACS Small Servo Tuning Unit Digital Servo Driver Special R5232 Cable Figure 3 6 RS232 interface connection Tel 86 755 26434369 8 Website www leadshine com DIP Switch There is a 2 bit DIP switch built inside the ACS306 as follows It 1s reserved and now hasno use MOTOR SEL DIP switch 1 and 2 are reserved for future use 0 m V U lt v gt T A o gt v 174 U lt w 2 2 Q EREE lt Z a oo Eg E i Typical Connections A typical connection of the ACS306 is shown as Figure 3 7 Please consult Control Signal Connections and Encoder and Hall Sensor Connections for more information about controller and encoder connections Tel 86 755 26434369 9 Website www leadshine com A Leadshine Technology Co Ltd a ACS306 Digital AC Servo drive Manual Rev1 0 A Leadshine Technology Co Ltd SE ACS306 Digital AC Servo drive Manual Rev1 0 ACS306 PC Serial Port DB 9 or STU ACS RJ 14 Figure 3 7 Typical connection of the ACS306 4 Servo Setup Before you start the servo you should follow the below steps Tel 86 755 26434369 10 Website www leadshine com A Leadshine
7. Technology Co Ltd x 3 ACS306 Digital AC Servo drive Manual Rev1 0 Install Encoder and Hall sensor Encoder and Hall sensor provide information of the motor shaft position and rotor magnetic field orientation The output signals from the Hall sensor have absolute phase information which is used at motor startup If your motor has no encoder and hall sensor you must mount an encoder and hall sensor properly on the motor before you start Please assemble the selected module according to its factory manual Leadshine offers BLM series DC brushless servo motors for matching the ACS306 Please note that the ACS306 requires specific sequence of the back EMEF and hall sensor state phasing as figure 4 1 For the motor which is from other manufacturer or mounted by yourself you may have to try all the six combination of the HU HV HW and or the U V W wire Contact tech leadhine com for further information installations to non Leadshine servo motor Falling Edge of hall sensor signal HLYHYW HW N Zero of the back EMP Vuv View Ywu Figure 4 1 Back EMF and hall sensor sequence requirement of the ACS306 Please use shielded cables to increase noise immunity in interference environments Keep these wires far away from the power lines Prepare Power Supply Regulated or Unregulated Power Supply Both regulated and unregulated power supplies can be used to supply the Drive However unregulated power supplies are preferred due
8. The content in this manual has been carefully prepared and is believed to be accurate User s Manual but no responsibility is assumed for inaccuracies Leadshine reserves the right to make changes without further notice to any products For herein to improve reliability function or design Leadshine does not assume any liability arising out of the application or use of any product or circuit described herein neither does it convey any license under its patent rights of others Digital AC Servo Drive Leadshine s general policy does not recommend the use of its products in life Revision 1 0 support or aircraft applications wherein a failure or malfunction of the product may 2010 All Rights Reserved directly threaten life or injury According to Leadshine s terms and conditions of Attention Please read this manual carefully before using the drive sales the user of Leadshine s products in life support or aircraft applications assumes all risks of such use and indemnifies Leadshine against all damages azs 3S 300W Signal ee 0 M N U lt v gt T la o gt v v 0 lt Y a Q Feedback 15 High voltage gz oS Ze lt c Leadshine Technology Co Ltd 3 F Block 2 Nanyou Tianan Industrial Park Nanshan Dist Shenzhen China Tel 86 755 26434369 Fax 86 755 26402718 URL www leadshine com E Mail sales leadshine com All Rights Reserved 2010 by Leadshine Te
9. chnology Company Limited Contents Table of Contents 1 Introduction Features and Applications ccccccccccccccceeeeeeseeesesseeeeeeeeeeeeeeeeeeaaas i AACR OIG HON seene E uncecececacssus ence ecas see encenee an suees i Pea Uro Soni a E E E E E EE EEE HADPNICAULONS fies tone tasceiactadee toa saint iaace O acta saan 2 2 Specifications and Operating EnvirOnMent cccccccccccccceceeeesssseesseeeeeeeeeeeeeeeeaaaas 2 Plectical SpeciMiCatonS sranna a a a a dee MGs isaita dda ais 2 Perl ORMATICS SPeCCIICAONS aena E aN TNE aes 2 Mechanical S peciNcdHon esros a A 3 Fe lial Wat Om OP Cal AE N E ET E E E ee 3 Operating Environment and Parameters ccccccccccccsssssssesssseeeeceeceeeeeeeeaeeeeeeeeses 3 5 CONNEC HONS eea A R 4 Conmector Connie uralOn rse an shat ie icte sins Sanaa ena 4 Gener al TORNANO esri S nese aera een 4 M re about VOSI enal ccuutaiie sine an ene O 5 More about I O Signals Continue cisscesssceecei secs nasaia 6 Control Sienal Connections eroe ai dt acai Misa 6 Alani 51 onal ONMECHONS eera a aden sesa a A enaeoseens 7 Encoder and Hall Sensor Connections ssis irise nae nea 7 R252 IMlerhace CONNEC OM esaea NE 8 Typical Onnechons ae te ee als en ea aes 9 Be DET VOL UD erceheensetas sunset harden nee neces teede tase tale tctsetete en teceahedetes se taseatendeteenve ts cestndaaes 10 Install Encoder and Hall S6nsors 2 4 0 20 saried hin dient edad die lek 11 Prepare Pow Cr SW Oly
10. earth through a SINGLE low resistance point Avoiding repetitive links to PE creating ground loops which is a frequent source of noise Central point grounding should also be applied to cable shielding shields should be open on one end and grounded on the other Close attention should also be given to chassis wires For example motors are typically supplied with a chassis wire If this chassis wire is connected to PE but the motor chassis itself is attached to the machine frame which is also connected to PE a ground loop will be created Wires used for grounding should be of a heavy gauge and as short as possible Unused wiring should also be grounded when safe to do so since wires left floating can act as large antennas which contribute to EMI Power Supply Connection NEVER connect power and ground in the wrong direction because it will damage the ACS306 drive The distance between the DC power supply of the drive and the drive itself should be as short as possible since the cable between the two is a source of noise When the power supply lines are longer than 50 cm a 1000uF 100V electrolytic capacitor should be connected between the terminal GND and the terminal VDC This capacitor stabilizes the voltage supplied to the drive as well as filters noise on the power supply line Please note that the polarity can not be reversed It is recommended to have multiple drives to share one power supply to reduce cost if Tel
11. ies to reduce the error A high gain system can produce large correcting torques when the error is very small A high gain is required if the output is required to follow the input faithfully with minimal error A servo motor and its load both have inertia which the servo amplifier must accelerate and decelerate while attempting to follow a change at the input The Tel 86 755 26434369 15 Website www leadshine com A Leadshine Technology Co Ltd os ACS306 Digital AC Servo drive Manual Rev1 0 presence of the inertia will tend to result in over correction with the system oscillating beyond either side of its target It s called UNDER DAMPED status See Figure 11 This oscillation must be damped but too much damping will cause the response to be sluggish namely cause the system to get into an OVER DAMPED state When we tune a servo we are trying to achieve the fastest response with little or no overshoot namely get a CRITICALLY DAMPED response Step and Impulse Responses Under Damped A Critically Damped 4 i f eresse Over Damped i Impulse Interference Position Time Figure 5 1 Step and impulse responses As mentioned in previous contents the ACS306 is a digital servo drive and its input command is PUL DIR signal In other words step response just exists in each step command signal For each step command signal is a very small movement so OVER SHOOT and SETTLING TIME between each ste
12. ires lengths Twisted Wires Twisted wires effectively increase noise immunity The successive twists eliminate noise transients along the length of the cable Both signal cables and power cables should be of the twisted and shielded type Differential signal wires should be twisted as a pair The combination of twisted pair wires and a differential signal significantly adds to noise immunity Power wires should be twisted as a group along with the ground or chassis wire if available Cable Shielding All signal wires should be bundled and shielded separately from Drive power and motor power wires Power wires should also be bundled and shielded When grounding a shield the rule of thumb is to do so at the source of power while Tel 86 755 26434369 13 Website www leadshine com A Leadshine Technology Co Ltd os ACS306 Digital AC Servo drive Manual Rev1 0 leaving the other shield end open For example in the case of motor power wires this would be the drive side Ideally twisted pairs should be individually shielded and isolated from the outer shield which encompasses all wires within the cable However since this type of stringent shielding practice is often not required typical cables do not provide isolation between inner and outer shields System Grounding Good grounding practices help reduce the majority of noise present in a system All common grounds within an isolated system should be tied to PE protective
13. ite www leadshine com A Leadshine Technology Co Ltd a ACS306 Digital AC Servo drive Manual Rev1 0 R232 Communication Connector Pin Sigal Description O 1 x Not connected 5V power only for STU O RS232 transmit O Ground GND RS232 receive I Not connected Motor phase U Motor phase V Motor phase W DC power Input 20 30VDC Power Ground GND More about I O Signals Pulse input signal In single pulse pulse direction mode this input represents pulse signal each rising or falling edge active software configurable 4 5V when PUL HIGH 0 0 5V when PUL LOW In double pulse mode pulse pulse this PUL PUL input represents clockwise CW pulse active at both high level and low level For reliable response pulse width should be longer than 0 85us Series connect resistors for current limiting when 12V or 24V used The same as DIR and ENA signals Directions input signal In single pulse mode this signal has low high voltage levels representing two directions of motor rotation in double pulse mode DIR DIR software configurable this signal is counter clock CCW pulse active at both high level and low level For reliable motion response DIR signal should be ahead of PUL signal by 5ys at least 4 5V when DIR HIGH 0 0 5V when DIR LOW Enable input signal This signal used for enabling disabling the drive High level ENA ENA for enabling the drive and low level for disab
14. ler Prepare a controller with pulse and direction signals However the ACS306 has a built in motion controller for self test and Servo Tuning The built in motion controller can generate pulse signal with trapezoidal velocity profile System Connections and Noise Prevention After finishing the above steps you can connect your servo system Before you start make sure that the power is off Connect your system according to previous connection diagrams and pay attention to the following tips when wiring Tel 86 755 26434369 12 Website www leadshine com A Leadshine Technology Co Ltd x 3 ACS306 Digital AC Servo drive Manual Rev1 0 Wire Gauge The smaller wire diameter lower gauge the higher impedance Higher impedance wire will broadcast more noise than lower impedance wire Therefore when selecting the wire gauge it is preferable to select lower gauge i e larger diameter wire This recommendation becomes more critical as the cable length increases Use the following table to select the appropriate wire size to use in your application Current A Minimum wire size AWG 10 20 15 18 20 16 Cable Routing All content sensitive signal wires should be routed as far away from motor power wires and Drive power wires as possible Motor power and Drive power wires are major sources of noise and can easily corrupt a nearby signal This issue becomes increasingly important with longer motor power and Drive power w
15. ling the drive Usually left UNCONNECTED ENABLED Tel 86 755 26434369 5 Website www leadshine com A Leadshine Technology Co Ltd 5 ACS306 Digital AC Servo drive Manual Rev1 0 More about I O Signals Continue Alarm Fault signal output OC output high impedance when the working status is ALM ALM normal and low impedance when over voltage over current phase error encoder error limit error position following error happens Control Signal Connections The ACS306 has 3 differential logic inputs to accept Enable Pulse and Direction control signals and 1 OC open collector output for alarm fault output These inputs are isolated to minimize or eliminate electrical noises coupled onto the control signals Recommend use twisted wires and shielding cable for control signals to increase noise immunity in interference environments Keep these wires far away from the power lines In figure 3 2 input circuit for these control signals and connections to a typical motion controller is illustrated Figure 3 3 illustrates connections to the controller with common anode outputs ACS306 R 0 if VCC 5V R 1K Power gt 0 125W if VCC 12V R 2K Power gt 0 125W if VCC 24V R must be connected to control signal terminal Figure 3 1 Connections to controller with differential outputs Tel 86 755 26434369 6 Website www leadshine com A Leadshine Technology Co Ltd paa ACS306 Digital AC Servo drive Manual Rev1 0
16. ne Technology Co Ltd o ACS306 Digital AC Servo drive Manual Rev1 0 CONTACT US China Headquarters Address 3 F Block 2 Nanyou Tianan Industrial Park Nanshan District Shenzhen China Web http www leadshine com Sales Hot Line Tel 86 755 2641 7674 for Asia Australia Africa areas 86 755 2640 9254 for Europe areas 86 755 2641 7617 for Europe areas Fax 86 755 2640 2718 Email sales leadshine com Technical Support Tel 86 755 2641 8447 86 755 2641 8774 86 755 2641 0546 Fax 86 755 2640 2718 Email tech leadshine com for All Leadshine U S A Address 25 Mauchly Suite 318 Irvine California 92618 Tel 1 949 608 7270 Fax 1 949 608 7298 Web http www leadshineUSA com Email sales leadshineUSA com and support leadshineUSA com Tel 86 755 26434369 23 Website www leadshine com
17. ng product for service Customer shall prepay shipping charges for products returned to Leadshine for warranty service and Leadshine shall pay for return of products to customer WARRANTY LIMITATIONS Leadshine makes no other warranty either expressed or implied with respect to the product Leadshine specifically disclaims the implied warranties of merchantability and fitness for a particular purpose Some jurisdictions do not allow limitations on how long and implied warranty lasts so the above limitation or exclusion may not apply to you However any implied warranty of merchantability or fitness is limited to the 12 month duration of this written warranty Tel 86 755 26434369 21 Web site www leadshine com ACS306 Digital AC Servo Drive Manual Rev1 0 A Leadshine Technology Co Ltd SHIPPING FAILED PRODUCT ACS306 Digital AC Servo drive Manual Rev1 0 If your product should fail during the warranty period e mail customer service at tech leadshine com to obtain a returned material authorization number RMA before returning product for service Please include a written description of the problem along with contact name and address Send failed product to distributor in your area or Leadshine Technology Co Ltd Floor 3 Block 2 Tianan Industrial Park Nanshan Dist Shenzhen China Also enclose information regarding the circumstances prior to product failure Tel 86 755 26434369 22 Website www leadshine com A Leadshi
18. ons and deviations PUL DIR and EN should abide by some rules shown as figure 5 2 Tel 86 755 26434369 Website www leadshine com A Leadshine Technology Co Ltd x 3 ACS306 Digital AC Servo drive Manual Rev1 0 A Leadshine Technology Co Ltd os P ACS306 Digital AC Servo drive Manual Rev1 0 t gt 5us d te a t ke e High Level gt 3 5V f E High Level gt 3 5V en p Low Level lt 0 5V ito DUS DIR z t 5ps S Low Level lt 0 5V ENA i Figure 5 2 Sequence chart of control signals Notes a t EN must be ahead of DIR by at least 5 us Usually ENA is NC not connected See Connections section for more information b tz DIR must be ahead of PUL active edge by at least 5 us to ensure correct direction c tz Pulse width not less than 2 5 us d ty Low level width not less than 2 5 us Protection Functions To improve reliability the drive incorporates some built in protection functions The ACS306 uses one RED LED to indicate what protection has been activated The periodic time of RED is 5 s seconds and how many times the RED turns on indicates what protection has been activated Because only one protection can be displayed by RED LED so the drive will decide what error to display according to their priorities See the following Protection Indications table for displaying priorities Over current Protection Protection will be activated when contin
19. p are very small causing you hardly can see a step response such as Figure 11 even 1f the SET POINT is a very large quantity and the acceleration is very high However if you try to evaluate performances of the digital servo by investigating its position tracking error or position following error you may find it s much easier than investigating its step response The easiest way to get a tracking error or position following error response is to induce an impulse load on the motor See Tel 86 755 26434369 16 Website www leadshine com figure 5 1 at time 20 Leadshine offers a Windows based setup software ProTuner to its customers for evaluating servo performances Small servo tuning unit STU optional is available too and it s for field tuning without PC Tuning servo systems formed by the ACS306 can be summarized as the following rules 1 If servo system is UNSTABLE then the first thing of tuning is to stabilize the system You can increase Derivative Gain of Position Loop Kd or decrease Proportional Gain of Position Loop Kp or Integral Gain of Position Loop Ki 2 If servo system is UNDER DAMPED then increase Kd or decrease Kp or Ki 3 If servo system is CRITICALLY DAMPED then stop tuning and download the parameter settings to the Drive s EEPROM 4 If servo system is OVER DAMPED then decrease Kd or increase Kp or Ki Sequence Chart of Control Signals In order to avoid some fault operati
20. secasea sats a sansa cee Shc a aa 11 Regulated or Unregulated Power Supply cccccccsssssssessseeeeceeeeeeeeeeeaaas 11 Selects Supply Volta e onen E NA 12 Pre pare Contool E onca aE A 12 System Connections and Noise Prevention ccccssssssessssseeeeeceeeeeeeeeeeaeeeeeeeees 12 Tel 86 755 26434369 I Web site www leadshine com Contents VTE Gr Be areata A at gas seule E Gare eeeaasenceantameccateaaee 13 Cable ROUI er ce at Ore Arete Mr ate ane E neta nea te E r ere eae ea 13 WIS FSC W 1S cease nhc oa ce neuen etn a a tetas daee ne eeeatentc 13 Cable SI CLATING erreser aA E 13 SY SECM GOUN S eaaa N E EN 14 Power Supply Connecti oh ta ceutical ait ie cue Resta 14 S AAE E E E terete renter ter ease entree AAA AT E rrr terrier Serer rear ser ret rte 15 ESTING ENG SCEV O S 15 EIN THE SCE O ogee asa a a ty acntet ies 15 sequence Chart of Control Signals oi caincinnnci nannies 17 PrOleC WOME UNCHIONS etet canta a A O a eee es 18 Over c rrent PrOte Ctl OM case stesiassevssaasaddaisacdeusaadsadsaraaiasusesdeateensasddusuadeadaniates 18 Over voltase Proe CON a s25svssosi5is esctecvncasescicenctacsseaesseeceacaaazecnenees eetsanaeate 19 Encoder or Hall Error Protechion antes site Seis ie titel eae aces 19 Position Following Error Protection ccccccccccccccsssssssesesseseeeeeeeeeseeeeaaas 19 Protection IndicanonsS s 23 nuiecmeianueiian a ees 19 Maximum Pulse Inp t Frequency ssccsssscaccetiececcnteacencshiedsaetinceG
21. to their ability to withstand Tel 86 755 26434369 11 Website www leadshine com A Leadshine Technology Co Ltd ACS306 Digital AC Servo drive Manual Rev1 0 current surge If regulated power supplies such as most switching supplies are indeed used it is important to have large current output rating to avoid problems like current clamp for example using 4A supply for 3A motor drive operation On the other hand if unregulated supply is used one may use a power supply of lower current rating than that of motor typically 50 70 of motor current The reason is that the Drive draws current from the power supply capacitor of the unregulated supply only during the ON duration of the PWM cycle but not during the OFF duration Therefore the average current withdrawn from power supply is considerably less than motor current For example two 3A motors can be well supplied by one power supply of 4A rating Selecting Supply Voltage The ACS306 can actually operate within 20 30VDC including power input fluctuation and back EMF voltage generated by motor coils during motor shaft deceleration The rated voltage of the motor is an important parameter when selecting supply voltage Generally speaking do not use a power supply voltage more than 5 volts of the rated voltage of the motor Higher voltage may cause bigger motor vibration at lower speed and it may also cause over voltage protection or even drive damage Prepare Control
22. uhincsccatiocntetentd 19 Motor Speed Calculado Meiri eth Reena eee eats 20 PAE PEIN DS oa bate tis aa eee dae en Sean cia dae ea Sear a ns eaae tia dawk ne epeetetes dace ne eeee tet 21 TWELVE MONTH LIMITED WARRANTY ee eeeeeseeeessssessssstsessesseeens 21 EX CIEUSTOINS eara E E ANER 21 OBTAINING WARRANTY SERVICE escuenducis iiao n a E es 21 WARRANTY LIMITATION Siasa a E E E E 21 SHIPPING FAILED PRODUC I rretu r E E 22 CONTAC US e E E A NG 23 Tel 86 755 26434369 II Website www leadshine com A Leadshine Technology Co Ltd 1 Introduction Features and Applications ACS306 Digital AC Servo Drive Manual Rev1 0 Introduction Leadshine s fully digital AC servo drive ACS306 is developed with 32 bit DSP based on advanced control algorithm Since its input commands are PUL DIR signals the users can upgrade stepping drives to the ACS306 without changing control systems The ACS306 can offer high precision high speed and high reliability performance and widely used in inkjet printers engraving machines and etc A built in controller can be used for testing and tuning PC based and handheld configuration amp tuning tools can meet different tuning environments or requirements The ACS306 can drive both DC brushless and AC servo motors But it is more suitable for the DC brushless servo motors Compare to ACS606 the ACS306 has smaller size and additional alarm fault signal output to indicate error Features Input 20 30VDC
23. uous current exceeds 20A and RED LED Tel 86 755 26434369 18 Website www leadshine com A Leadshine Technology Co Ltd x 3 ACS306 Digital AC Servo drive Manual Rev1 0 will turn on once within each periodic time 5 s Over voltage Protection When power supply voltage exceeds 4021 VDC protection will be activated and RED LED will turn on twice within each periodic time 5 s Encoder or Hall Error Protection No encoder feedback signals or wrong encoder hall sensor feedback signals will activate this protection RED LED will turn on five times within each periodic time 5s Position Following Error Protection When position following error reaches Position Following Error Limit parameter setting in the drive this protection will be activated RED LED will turn on seven times within each periodic time 5 s Note that wrong motor connection will cause this protection too Please check your motor connection if this protection 1s activated at the startup Attention Since there is no protection against power leads reversal it is critical to make sure that power supply leads correctly connected to drive Otherwise the drive will be damaged instantly Protection Indications Priority Time s of ON Sequence wave of RED LED Description r 1 Over current protection Pi 2 Over voltage protection a gt 5 Encoder or Hall error protection 4 7 Position following error protection
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