2MA2278 - Gbeshop.com
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1. can be serial connected to PLC input terminal Alarm signal negative Connector P2 Configurations AC power supply inputs Recommend use isolation transformers with theoretical output voltage of 80 180 VAC leaving room for power fluctuation and back EMF Motor Phase A Motor Phase B Ground terminal Recommend connect this port to the ground for better safety 4 Selecting Microstep Resolution and Driver Output Current This driver uses a 9 bit DIP switch to set microstep resolution motor operating current and control signal mode as shown in the following figure Microstep Dynamic Resolution Current PUL DIR or CW CCW selection Notes SW5 ON means CW CCW pulse pulse mode and SW5 OFF means PUL DIR mode Microstep Resolution Selection Microstep resolution is set by SW1 2 3 4 of the DIP switch as shown in the following table gt oO as Oe OO OO OO Z2 2Z2 2 24 Z zs z5 zZ ON O Z O O O e Z gt Z O O T T i T Current Settings Email ebay savebase com Web http stores ebay co uk SAVEB ASE 4 2MA2278 Microstepping Driver Manual V1 0 ECG SAVEBASE The latter four bits SW6 7 8 9 of the DIP switch are used to set the dynamic current Select a setting closest to your motor s required current Dynamic current setting Notes Due to motor inductance the actual current in the coil may be smaller than the dynamic current s2. User s Manual 2MA2278 High Performance Microstepping Driver Version 1 0 2012 All Rights Reserved Attention Please read this manual carefully before using the driver Easy Commercial Global Technology Co LTD Savebase kkk 2MA2278 Microstepping Driver Manual V1 0 ECG SAVEBASE ECG Safety Statement Easy Commercial Global is not liable or responsible for any accidents injuries equipment damage property damage loss of money or loss of time resulting from improper use of electrical or mechanical or software products sold on this website or other Easy Commercial Global sales resources Since Easy Commercial Global basically provide OEM machine builders components to build their machines for their own use or third party use it is their responsibility to maintain certify and comply the end user products built base on our components sold on this website or other Easy Commercial Global sales resources Assembling electrical CNC machine component like power supplies motors drivers or other electrical components involve dealing with high voltage like AC alternative current or DC direct current which is extremely dangerous and need high attention amp essential experience and knowledge of software electricity electro mechanics amp or mechanics For technical questions please contact us at ebay savebase com before purchase 2012 Easy Commercial Global Technology Corporation Limited All Rights Reserved E
3. etting particularly under high speed condition Standstill Current The NC 2MA2278 has automatic idle current reduction function The current automatically be reduced to 60 of the selected dynamic current setting 0 2 second after the last pulse Theoretically this will reduce motor heating to 36 due to P I2 R of the original value If the application needs a different standstill current please contact with us Control Signal Mode Setting SW5 is used for this purpose SW5 ON means CW CCW pulse pulse mode and SW5 OFF means PUL DIR mode Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 5 ECG SAVEBASE 2MA2278 Microstepping Driver Manual V1 0 5 Typical Connection A complete stepping system should include stepping motor stepping driver power supply and controller pulse generator A typical connection is shown as figure 2 Controller READY eau D 80 220VA C 120 310VDC_ _AciDC Aa ex Stepper Motor H0 if W E IK Pover 0 1257 if VOC 12V FE R 2h Pover 0 1258 if VOC 247 R must be connected to control signal tereinel Figure 2 Typical connection Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 6
4. hen PUL HIGH 0 0 5V when PUL LOW In double pulse mode pulse pulse this input represents clockwise CW pulse active at high level or low level set by inside jumper J1 amp J2 For reliable response pulse width should be longer than 1 5 u s Series connect resistors for current limiting when 12V or 24V used The same as DIR and ENA signals 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 jumper J1 amp J2 this signal is counter clock CCW pulse For reliable motion response DIR signal should be ahead of PUL signal by 5 s at least 4 5V when DIR HIGH 0 0 5V when DIR LOW Please note that motion direction is also related to motor driver wiring match Exchanging the connection of two wires for a coil to the driver will reverse motion direction Enable signal This signal is used for enabling disabling the driver High level NPN control signal PNP and Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 3 2MA2278 Microstepping Driver Manual V1 0 ECG SAVEBASE Differential control signals are on the contrary namely Low level for enabling for enabling the driver and low level for disabling the driver Usually left UNCONNECTED ENABLED Alarm signal positive READY is an opto coupler output from open collector circuit maximum permitted input voltage is 30VDC maximum output current 20mA It generally
5. mail ebay savebase com Web hitp stores ebay co uk SAVEBASE 1 2MA2278 Microstepping Driver Manual V1 0 ECG SAVEBASE 1 Introduction Features and Applications Introduction The 2MA2278 is a high performance and low noise microstepping driver based on pure sinusoidal current control technology It s suitable for driving 2 phase and 4 phase hybrid stepping motors By using advanced bipolar constant current chopping technique the 2MA2278 can output more torque than other drivers at high speed The microstep capability allows stepping motors to run at higher smoothness less vibration and lower noise Its pure sinusoidal current control technology allows coil current to be well controlled with relatively small current ripple therefore smaller motor noise and less motor heating can be achieved Features High quality cost effective Low motor amp driver heating Supply voltage from 80V AC to 240V peak AC or 110V DC to 350V peak DC Output current from 0 45A 0 32A AVG to 7 8A 5 57A AVG TTL compatible and opto isolated inputs Automatic idle current reduction Input frequency up to 400 KHz 16 microstep resolutions selectable Suitable for 2 phase and 4 phase stepping motors DIP switch microstep amp current settings Support PUL DIR amp CW CCW modes Applications Suitable for large and medium automation machines and equipments such as engraving machines labeling machines cutting machines laser phototypese
6. tting systems plotting instruments CNC machines pick place devices and so on Particularly adapt to the applications desired with low noise low vibration high speed and high precision 2 Specifications Electrical Specifications Tj 25 C 77T Operating Environment and other Specifications Avoid dust oil fog and corrosive gases Approx 1000g Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 2 2MA2278 Microstepping Driver Manual V1 0 ECG SAVEBASE Mechanical Specifications unit mm 108 Figure 1 Mechanical specifications Recommend use side mounting for better heat dissipation Elimination of Heat Driver s reliable working temperature should be lt 70 C 158 F and motor working temperature should be lt 80 C 176 F tis recommended to use automatic idle current mode namely current automatically reduce to 60 when motor stops so as to reduce driver heating and motor heating tis recommended to mount the driver vertically to maximize heat sink area Use forced cooling method to cool the system if necessary 3 Pin Assignment and Description The 2MA2278 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 of the 2MA2278 Connector P1 Configurations Pulse signal In single pulse pulse direction mode this input represents pulse signal 4 5V w
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