User`s Manual
Contents
1. inputs are isolated to minimize or eliminate electrical noises coupled onto the control signals It s recommended to use line driver control signals to increase noise immunity of the driver under an 4 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd interference environment Connections to open collector and PNP signals are illustrated in the figure 3 and the figure 4 Controller 3L883M vec e PUL DIR 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 Connections to open collector signal common anode 3L883M R 0 if VWOC 5 R 1K Power 1250 if VOC 12V R 28 Power 1250 if VOC 2AV R must be connected to control signal terminal Figure 4 Connections to PNP signal common cathode 5 Connections to Stepping Motors The connection between the driver and 3 phase stepping motors includes two different kinds of connections namely delta connection and star connection Using delta connection the performances of the motor under high speed condition are better but the driver current is higher too about 1 73 times the motor coil current while using star connection the driver current equals 5 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd to the motor coil current U V W V W V W Delta connection Intra delta2. Figure 1 Mechanical Specifications Recommend use side mounting for better heat dissipation 2 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd Elimination of Heat Driver s reliable working temperature should be lt 65 C and motor working temperature should be lt 80 C Recommend use automatic idle current reduction mode namely current automatically be reduced to 60 when motor stops so as to reduce driver heating and motor heating 3 Pin Assignment and Description The 3L883M has two connectors connector P1 for control signals connections and connector P2 for power and motor connections The following tables are brief descriptions of the two connectors More detailed descriptions of the pins and related issues are presented in section 4 5 9 Connector P1 Configurations DIR signal In single pulse mode this signal has low high voltage levels representing two directions of motor rotation in double pulse mode set by inside J1 jumper this signal is counter clock CCW pulse effective for low level For reliable motion response DIR signal should be ahead of PUL signal by Sus at least 4 5 V when DIR HIGH 0 0 5V when DIR LOW Notes PUL DIR mode is the default mode and under cover jumper J1 can be used to switch it to CW CCW mode 3 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd Selecting CW CCW or PUL DIR Mode There is
3. connection Star connection Figure 5 Motor connections 6 Power Supply Selection The 3L883M can match medium and small size stepping motors from NEMA size 17 to 34 made by MotionKing or other motor manufactures around the world To achieve good driving performances it is important to select supply voltage and output current properly Generally speaking supply voltage determines the high speed performance of the motor while output current determines the output torque of the driven motor particularly at lower speed Higher supply voltage will allow higher motor speed to be achieved at the price of more noise and heating If the motion speed requirement is low it s better to use lower supply voltage to decrease noise heating and improve reliability Regulated or Unregulated Power Supply Both regulated and unregulated power supplies can be used to supply the driver However unregulated power supplies are preferred due to their ability to withstand 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 driver 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 driver draws current from the power supply capacitor of the unregulated su
4. User s Manual For 3L883M Extremely Low Noise 3 phase Microstepping Driver Version 1 0 2008 All Rights Reserved Attention Please read this manual carefully before using the driver QotionKing MotionKing China Motor Industry Co Ltd T 86 519 8988 6261 F 86 519 8515 1172 Web site www MotionKing com E Mail sales MotionKing com The content in this manual has been carefully prepared and is believed to be accurate but no responsibility is assumed for inaccuracies MotionKing reserves the right to make changes without further notice to any products herein to improve reliability function or design MotionKing 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 MotionKing s general policy does not recommend the use of its products in life support or aircraft applications wherein a failure or malfunction of the product may directly threaten life or injury According to MotionKing s terms and conditions of sales the user of MotionKing s products in life support or aircraft applications assumes all risks of such use and indemnifies MotionKing against all damages 2008 by MotionKing All Rights Reserved Contents Table of Contents 1 Introduction Features and Applications cccccccccceeeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeees l DART CES Omes a a a tanmsGast geen
5. a jumper J1 including pin 1 to pin 9 inside the 3L883M specifically for selecting pulse signal mode Settings for the one pulse mode PUL DIR and for the double pulse mode CW CCW are shown in the following figure Default mode out of factory is PUL DIR mode and effective at rising edge 456789 Ui ess eal ofacate a PUL DIR mode and effective at rising edge 6 7 amp 9 12345 J1 o ee exe 0 b PUL DIR mode and effective at falling edge 3456789 2345 6 7 8 9 neea 0 d CW CCW mode and effective when the opto coupler of the fixed level is in off state c CW CCW mode and effective when the opto coupler of the fixed level is in conducting state Figure 2 Control signal mode setting jumper Notes For c the user should move R137 a OQ resistor to R136 besides setting J1 and let R137 NC open circuit Connector P2 Configurations DC power supply 24VDC 80VDC Including voltage fluctuation and EMF voltage Remark Please note that motion direction is also related to motor driver wiring matches Exchanging the connections of two phases to the driver will reverse motor motion direction 4 Connections to Controller The 3L883M can accept differential and single ended control signals including open collector namely common anode and PNP output namely common cathode The 3L883M has 3 optically isolated logic inputs which are located on connector P1 to accept line driver control signals These
6. electrical noise controller software errors or mistake in wiring Problem Symptoms and Possible Causes Microstep resolution setting is wrong DIP switch current setting is wrong Fault condition exists Motor phases may be connected in reverse DIP switch current setting is wrong Something wrong with motor coil Current setting is too small ris un zed tor the appli Acceleration is set too high Power supply voltage too low Inadequate heat sinking cooling current reduction f incuon not bein PU tiliz ec Control signal is too weak Control signal is interfered Something wrong with motor coil Current is set too high 12 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd 13 Web Site www MotionKing com
7. g Motor R 0 if VCC 5V Re1K 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 6 Typical connection 10 Sequence Chart of Control Signals In order to avoid some fault operations and deviations PUL DIR and ENA signals should abide by some rules as shown in the figure 7 t 2518 illa I High Level gt 3 5V Ani ai UU High Level av t ill Low Level lt 0 SV ENA Figure 7 Sequence chart of control signals Remark 1 t ENA must be ahead of DIR by at least Sus Usually ENA and ENA are NC not connected See Connector P1 Configurations for more information 2 t DIR must be ahead of PUL effective falling edge by at least Sus to ensure correct 10 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd direction 3 t3 Pulse width not less than 1 5us 4 ty Low level width not less than 1 5us 11 Protection Functions To improve reliability the driver incorporates some built in protection features Over voltage Protection When power supply voltage exceeds 91 VDC protection will be activated and the LED will turn red Short voltage Protection When power supply voltage is lower than 16VDC protection will be activated and the LED will turn red Short Circuit Protection Protection will be activated in case of short circuit between motor coil and ground Whe
8. he motor output more torque but at the same time causes more heating in the motor and driver Therefore output current is generally set to be such that the motor will not overheat for long time operation Phase current rating supplied by motor manufacturer is important in selecting driver current however the selection also depends on leads and connections DIP Setting for Dynamic Current The 3L883M uses an 8 bit DIP switch to set motor dynamic current standstill current and microstep resolution as shown below Dynamic Current Microstep Resolution w i 1 2 3 4 5 6 7 8 Standstill Current half full The first three bits SW1 2 3 of the DIP switch are used to set the dynamic current Select a setting closest to your motor s required current E ON OFF OFF OO BA 3A ON ON OFF 7 Web Site www MotionKing com Notes Due to motor inductance the actual current in the coil may be smaller than the dynamic current settings particularly under high speed condition DIP Setting for Standstill Current SW4 is used for this purpose OFF meaning that the standstill current is set to be half of the selected dynamic current and ON meaning that standstill current is set to be the same as the selected dynamic current The current automatically reduced to 60 of the selected dynamic current 0 5 second after the last pulse when use automatic idle current reduction mode Theoretically this will reduce motor heating to 36 d
9. n short circuit protection function is active the LED will turn red Over current Protection Protection will be activated in case of over current which may otherwise damage the driver Over temperature Protection Protection will be activated in case of the temperature of the driver reaches 75 C 5 C and the LED will turn red Attention Since there is no protection against power leads reversal it is critical to make sure that power supply leads correctly connected to the driver Otherwise the driver will be damaged instantly When protection function is active the user should REPOWER the driver to reset the driver 12 Frequently Asked Questions In the event that your driver doesn t operate properly the first step is to identify whether the problem is electrical or mechanical in nature The next step is to isolate the system component that is causing the problem As part of this process you may have to disconnect the individual 11 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd components that make up your system and verify that they operate independently It is important to document each step in the troubleshooting process You may need this documentation to refer back to at a later date and these details will greatly assist our Technical Support staff in determining the problem should you need assistance Many of the problems that affect motion control systems can be traced to
10. oetnanned tie l EEAMUTOS 15001010 invasiivne a es l ADDI CATIONS eni E E T A TE E T TE l 2 Specifications and Operating Environment ccccccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees l Electrical Speci Nedon airne eon n a E EE l Operatine EM VITO MAGE arean a 2 Mechanical Specifications itta desiiiiaic ai kl olli aid ll ie ll aa 2 EIA CLO OT LUC AL eh tikai rk ae tia kaak elan atika 3 3 Pin Assignment and Description 1 00 khanaat nkdakkuan aaa san dsasesssusesesasdsesbesensessoesoes 3 Connector PL CONATI ONS kaubamaja 3 Selecting C W CCW or PUL DIR Mode mmmmenennnnnnnnnnnnennnnenna 4 Connector E 2 HE OMI SU TAO AS ska taak laka taala ka T tia 4 A CONNECTIONS 0 COMMON CE crte a tia 4 3 ACOMNECHONIS tO SLeDpIn e MOOS aces kaise a a hates nar ecashamoaseeres tenes 5 6 Power Supply Selection incl et el eh ee en es ae ee 6 Regulated or Unregulated Power Supply e 6 MAD LG IT 150 8 ahha ae aiamaa aiaiai aa 6 Selectine Supply Voltave mia ee ee ee 7 7 Output Current and Microstep Resolution Settings cccccccccceeeeeeeeeeeeeeeeeeeeees 7 CUm TAS A nee MeO ae REMC e me aa a a a DIP Setting for Dynamic Current 1054 vegasd e liaanid dia aaa dna 7 DIP Setting Tor Standstill CEPOLi taan daamil aoe os e 8 Microstep Resolution Setting nsien niintin i a 8 S MILLS NOS sarea a E aatal main tita malli A Oth 9 Ep ca CONNEC OI esia a ATA t A 9 10 Sequence Chart of Control Sipmals o
11. pply 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 Multiple Drivers It is recommended to have multiple drivers to share one power supply to reduce cost if the supply has enough capacity To avoid cross interference DO NOT daisy chain the power supply input 6 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd pins of the drivers Instead please connect them to power supply separately Selecting Supply Voltage The power MOSFETS inside the 3L883M can actually operate within 24 80VDC including power input fluctuation and back EMF voltage generated by motor coils during motor shaft deceleration Higher supply voltage can increase motor torque at higher speeds thus helpful for avoiding losing steps However higher voltage may cause bigger motor vibration at lower speed and it may also cause over voltage protection or even driver damage Therefore it is suggested to choose only sufficiently high supply voltage for intended applications and it is suggested to use power supplies with theoretical output voltage of 24 72V leaving room for power fluctuation and back EMF 7 Output Current and Microstep Resolution Settings Current Setting For a given motor higher driver current will make t
12. r heating have been reduced by 15 30 Features High performance low noise and lost cost Low driver heating and low motor heating Supply voltage up to 80 VDC Output current up to 8 3A RMS 5 94 Input signal TTL compatible Automatic idle current reduction Suitable for 3 phase stepping motors including 3 lead and 6 lead motors Optically isolated differential input signals Applications pulse frequency up to 300 KHz 16 selectable resolutions up to 25600 steps rev DIP switch current setting with 8 different values PUL DIR amp CW CCW modes optional Over voltage short voltage over current and over temperature protection Small size for easy mounting Suitable for a wide range of 3 phase stepping motors from NEMA size 17 to 34 It can be used in various kinds of machines such as X Y tables labeling machines laser cutters engraving machines and pick place devices and etc It s extremely suitable for the applications desired with low noise low vibration high speed and high precision 2 Specifications and Operating Environment Electrical Specifications T 25 C l Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd Supply voltage 24 Okaa 7k Operating Environment Vibration 5 ee Approx 550 gram 19 4 oz Mechanical Specifications unit mm 1 inch 25 4 mm t 5 ot 4 md i JT T ja r B H o 4
13. uc 5 scciieneud nena alal nena 10 ls PEOLEEHOM FUNC IONS aeti kaa ni ahela tiaara dl allaktid 11 OV ET V la re PEOLE OMON na alasi ik ai ij aj ij kail la 11 SOLE VOA SEP LOLGEM NL rinna naa a name andi 11 I Web Site www MotionKing com Contents Short Ciregit PIOlECHON orelist Oe 11 OVE CUT EENET FOLSOMI Oene A aka aaa a Gotten haba Getter at alb ta a ls 11 OV Gf temperalule PEOLEGMON senses cies imetamine amaan eat aitas ehee 11 2 Etegu el y Asked QUCSHONS oree a ence cence tec A AAAA 11 Problem Symptoms and Possible Causes irirrrernnenrnnnnnnnnna annan 12 II Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd 1 Introduction Features and Applications Introduction The 3L883M is a high resolution 3 phase microstepping driver based on precision current control technology It s suitable for driving 3 phase hybrid stepping motors from NEMA size 17 to 34 By using the advanced pure sinusoidal current control technology both the noise and vibration of the stepping motor have been greatly reduced which makes the stepping motors offer servo like performances Compared to the 3ND583 it has broader supply voltage range and offers more microstep resolutions thus can be used to replace more 2 phase stepping systems directly without changing application software offering better performances And compared to most of the microstepping drivers in the market both driver heating and moto
14. ue to P I R of the original value QotionKing MotionKing China Motor Industry Co Ltd 6000 OFF ON OFF OFF 8000 ON OFF OFF 0 OFF 10000 OFF OFF OFF OFF 8 Wiring Notes In order to improve anti interference performance of the driver it is recommended to use twisted pair shield cable To prevent noise incurred in pulse dir signal pulse direction signal wires and motor wires should not be tied up together It 1s better to separate them by at least 10 cm otherwise the disturbing signals generated by motor will easily disturb pulse direction signals causing motor position error system instability and other failures If a power supply serves several drivers separately connecting drivers is recommended instead of daisy chaining It is prohibited to pull and plug connector P2 while the driver is powered ON because there is high current flowing through motor coils even when motor is at standstill Pulling or plugging connector P2 with power on will cause extremely high back EMF voltage surge which may damage the driver 9 Typical Connection A complete stepping system should include stepping motor stepping driver power supply and controller pulse generator A typical connection is shown in the Figure 6 9 Web Site www MotionKing com QotionKing MotionKing China Motor Industry Co Ltd Controller 3L883M AN PUL 2100 am Ja ee es Came E ee EE ENABLE VDC 24V to 80V GND U Steppin
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