SRAC8 UserManual-EN
Contents
1. AC Input Step Motor Drive 0 i p 99988999 g pi WNNENNNS MOons me TE MOTOR DRIVE SRAC Serial Na iiia ba RoHS ce 0 Current Table DE 5868 eme fon on Jon lana OEF OF LYS GD DD ja m M GU O BD sas m Input Sognet Filer ON YS or W set owt v or Ou GR Green RD Red SOLID GREEN GR GA GR 1GR IRO 1GR 4RD 16R SRO 1GR GRO 2GR SRO 2GR 190 GR SRO User Manual Rev 1 1 AMP amp MOONS Automation SRAC8 User Manual MOONS Contents 1 Introduction arrrvnnnnvnnnnnnvnennvnnnenavnenarnnnenavnnnennnnenenannenannenevunee 3 1 1 Features r mransrvrenvnenrvnenenevavnenenevnvnenenevnvnenenevnnnenenevnenenennnnnnenene 3 VZ ojo UNN 4 2 Mounting the Ure esse eee eee eee d 3 Connections ee 5 3 1 Connecting to POWET 2 ee ee 5 3 2 Connecting GN ee 6 3 3 Connecting the Inputs and Outputs eee ee ee ee eee 7 3 3 1 Step amp Direction INputS 2 eek ass lst t simaa oksaa kasana vaain T K EN MO TT 8 PN OI 9 4 Switch Selection eee 10 4 1 Microstep Resolution eee ee ee eee 10 4 2 Running Mee 11 4 3 Idle Current 11 4 4 Anti RESONANCE cece ee 12 4 5 Step Input Mode eee eee 12 4 6 Step Input Signal Filter nona kanan anakan 12 4 7 Step Smoothing Filter onnaa aan nana a naan 12 4 8 Self Test2. 2 5 3 0 3 5 4 0 4 5 5 2 5 9 6 6 7 3 8 0A e Idle Current automatic reduction of running current 1 second after the motor stops switch selectable 4 settings 25 50 70 90 of running current e Anti Resonance raises the system damping ratio to eliminate midrange instability and allow stable operation throughout the speed range of the motor switch selectable 4 settings for low to high inertia loads e Control Modes Step Direction pulse input or CW CCW pulse input switch selectable e Input Signal Filter filters out unwanted noise that can cause extra steps switch selectable 2MHz or 150KHz e Step Smoothing Filter Microstep Emulation performs high resolution stepping by synthesizing coarse steps into fine micro steps switch selectable ON or OFF e Self Test performs a 2 rev 0 5RPS CW CCW move test switch selectable ON or OFF e Motor Selection a 16 bit rotary switch is used to select the desired motor database which is pre loaded at the Factory Rev 1 1 5 5 2011 SRAC8 User Manual 1 2 Block diagram Universal AC Input DOT 80 to 265 VAC Upply 5V switching reg SRAC8 Block Diagram Gate MOSFETs SI 8 Rotary Motor Selection switch STEP DIR EN Optical FAULT eerie Microstep Idle Current Run Current N Load Inertia Settings 16 bit Input Signal switch Signal Filter Smoothing Filter Self Test 2 Mounting the Drive The SRAC8 drive can be mounted
3. 12 5 Motor selection rrrnnnnrrrnnnnnnenavnvnenevevnenenenavnnnenenanavnnnenanennene 13 5 1 Recommended motors sese eee 14 6 Error Codes rnannrnnnnnnnvnnnnavnenavnenavnenavneravnenannennnnevnnnevnnnennennnee 15 7 Reference Materials see e 15 7 1 Mechanical Outline see ee 15 7 2 SEAN rene 16 1 21 lelez Eeee lele 16 1 2 2 Environmental Specifications e eee ee e ee e e 16 7 3 Torque Curves EE 17 8 Contacting MOONS eerarenernannnnrnnrnnnnnernnnnnnenernnnnnerneennnnneennn 18 Rev 1 1 5 5 2011 2 SRAC8 User Manual 1 Introduction Thank you for selecting the MOONS SRAC8 Step Motor Drive The SRAC8 series AC input drives are based on advanced digital current control technology and provide high torque low noise and low vibration Many of the operational paramteres are switch selectable We hope our dedication to performance quality and economy will make your motion control project successful 1 1 Features e Advanced digital current control provides excellent high speed torque e Auto Setup measures motor parameters and configures motor current control and anti resonance gain settings e Uses universal AC input 80 to 265 VAC e Speed Range up to 50 rps e Microstep Resolution switch selectable 16 settings 200 400 800 1600 3200 6400 12800 25600 1000 2000 4000 5000 8000 10000 20000 25000 steps rev e Running Current peak setting switch selectable 16 settings 0 4 0 6 0 9 1 2 1 5 2 0
4. only on the narrow side of the chassis M4 screws should be used in the two holes at the back of the drive The amplifiers in the drive generate heat To operate the drive continuously at maximum power forced air cooling as from a fan should be provided Never use the drive in a space where there is no air flow or where other devices can cause the surrounding air to be more than 40 C Never put the drive where it can get wet or where metal particles can fall into it Rev 1 1 5 5 2011 4 SRAC8 User Manual 3 Connections To use the SRAC38 Step Drive the following items are needed e Universal AC input of 80 to 265 VAC e Pulse amp Direction signal e Acompatible step motor 3 1 Connecting to Power LED WO Connector Selection Switches Motor Connector Power Connector Motor Selection Switch OUT OUT EN EN DIR DIR STEP STEP PPPOP Use the supplied connector to connect to the AC supply according to the diagram below Use 16 AWG wire for Line L and Neutral N Use 14 AWG for Earth Ground G Care should always be taken when working with high voltages In regions where the single phase supply is higher an auto transformer can be used to drop the voltage to the correct level The SRAC38 contains an internal 10A fast acting fuse Regeneration Clamping Circuit Earth Ground green Neutral white Line hot black High speed motion generates high voltage which can be tran
5. 8001 P R China Tel 86 0 755 25472080 Fax 86 0 755 25472081 m Beijing Branch Office Room 202 Unit 2 7th Building Huilongsen International Science amp Technology Industry Park No 99 Kechuang 14th Street Beijing 101111 P R China Tel 86 0 10 59755578 Fax 86 0 10 59755579 m Qingdao Branch Office Room 10E No 73 Wangjiao Mansion mid Hongkong Road Qingdao 266071 P R China Tel 86 0 532 85879625 Fax 86 0 532 85879512 a Wuhan Branch Office Room 3001 World Trade Tower No 686 Jiefang Avenue Jianghan District Wuhan 430022 P R China Tel 86 0 27 85448742 Fax 86 0 27 85448355 m Nanjing Branch Office Room 302 Building A Tengfei Creation Center 55 Jiangjun Avenue Jiangning District Nanjing 211100 P R China Tel 86 0 25 52785841 Fax 86 0 25 52785485 Rev 1 1 5 5 2011 18
6. BE Pa ee os pe 3 6 1850 27 34HD1802 03 Double Shaft series 34HD6801 01 Single Shaft 115 0 M 34HD2805 01 Single Shaft 34HD2805 03 Double Shaft 1 8 3 6 50 recommended recommended H Rev 1 1 5 5 2011 14 SRAC8 User Manual 6 Error Codes The SRAC8 Drive has two LEDs to indicate status When the motor is enabled the green LED flashes slowly when the green LED is solid the motor is disabled If the red LED flashes an error has occurred Errors are indicated by combinations of red and green flashes as shown below oe I eo esse H 90 asting vooren 0000 aa over Temperate 00000 29 Bea itera voro 66666 ee lani Hon 566666 aa Suoy Votegelow REE H 5666666 re Par 00000005101 oron ETT 7 Reference Materials 7 1 Mechanical Outline MOONS STEP MOTOR DRIVE 177 GERT GECEELEI o o i a R Y our 5 o EN z n N S m x O E oO Wu al B B A A N L A Unit mm Rev 1 1 a 5 5 2011 SRAC8 User Manual 7 2 Specifications 7 2 1 Electrical Specifications aa Mm me v a aa eo onome O of o a id STEP Minimum Puse Waaa 20 oRmnmmPuseman es ter VotageProtcton 0 aaa ms E 40 our Maximum Ouputcurent a A Gut Maximum ouput 7 2 2 Environmental Specifications Environmental Specifications Heat Sinking Method Natural coo
7. OFF O Z Z lt O O O Z O Z Z Z O n ov alati m mn 3 5A 5 2A on tali ov a ole 6 5 9A 6A 7 3A 8 0A 4 3 Idle Current The running current of the SRAC8 drive is automatically reduced whenever the motor isn t moving The SW9 and SW10 switches control the percentage of the running current the idle current is reduced to The 90 setting is useful when a high holding torque is required To minimize motor and drive heating it is highly recommended that the idle current reduction feature be set as low as the application can tolerate Rev 1 1 5 5 2011 SRAC8 User Manual 4 4 Anti Resonance The SW11 and SW12 switches select the load Option SW11 swi2 Inertia inertia There are 4 settings Ihe inertia selection o ESA Na Len can help the SRAC8 drive to calculate the current 4 or on control parameter If the load inertia is close to that of the motor rotor the low setting should be High selected If the load inertia is higher than that of the rotor a proportionally higher setting should be selected 4 5 Step Input Mode Most indexers and motion controllers provide motion commands in the Step and Direction format The Step signal pulses once for each motor step and the Direction signal commands direction Some PL Cs use a CW CCW command signal one signal pulses once for each desired step in the clockwise direction CW Step while a second signal pulses for counterclockwise mot
8. g the Input to Sourcing Outputs Rev 1 1 5 5 2011 8 SRAC8 User Manual 3 3 3 Fault Output The FAULT Output is optically isolated The maximum collector current is 100mA and the maximum collector to emitter voltage is 30 volts The output can be wired to sink or source current When drive is working normally the output is open When the drive encounters an error the output closes 5 24 volt Power Supply Connecting a Sinking Output 5 24 volt Power Supply Connecting a Sourcing Output 5 24 volt Power Supply 5 24 volt Power Supply Driving a Relay 9 Rev 1 1 5 5 2011 SRAC8 User Manual 4 Switch Selection Many of the operational parameters of the SRAC8 can be set or changed by position switches either by a single switch or a combination of ON OFF settings of 2 or more switches Microstepping Running Current l l Idle Current Anti Resonance Step Input Mode Smoothing Filter Step Input Signal Filter Self Test 4 1 Microstep Resolution The microstep resolution is set by the SW1 SW2 SW3 and SW4 switches There are 16 settings Microstep steps rev Swi sw2 sw sm 20 o on o ON gt OFF 25600 ag a L 5000 ol 25000 Rev 1 1 5 5 2011 10 SRAC8 User Manual 4 2 Running Current The output current is set by the SW5 SW6 SW7and SW8 switches There are 16 settings Current Pea W sw OFF
9. ion CCW Step In the CW CCW control mode the CW signal should be connected to the STEP input and the CCW signal to the DIR input Setting SW13 to OFF enables the Step amp Direction format the ON position enables the CW CCW format Note The power must be cycled each time the position of SW13 is changed 4 6 Step Input Signal Filter The STEP and DIR signal inputs have a built in digital filter to reduce the external noise If the system works on the low microstep the 150 KHz setting should be selected If the system works on the high microstep the 2 MHz setting should be used The SW14 switch selects the digital signal filter ON sets it to 150 KHz OFF sets it to 2 MHz Note The power must be cycled each time the position of SW14 is changed 4 7 Step Smoothing Filter Command signal smoothing can soften the effect of inmediate changes in velocity and direction making the motion of the motor less jerky An added advantage is that it can reduce the wear on mechanical components SW15 selects this function ON enables it OFF disables it This function can cause a small delay in following the control signal and it should be used with that in mind Note The power must be cycled each time the position of SW15 is changed 4 8 Self Test Setting SW16 to ON after the drive is powered up will cause the drive to perform a Self Test move of 2 revolutions both CW and CCW at 5 rps Setting SW16 to OFF will disable this feature Re
10. is controlled by the DIR input state A closed input logic O will result in clockwise rotation and an open input logic 1 will result in counterclockwise rotation vo with Sinking STEP Outputs Connecting to Indexer with Sinking Outputs DIR viat SRAC8 Sourcing Outputs Connecting to Indexer with Sourcing Outputs Indexer r Differential STEP STEP Connecting to Indexer with Differential Outputs Many high speed indexers have differential outputs Rev 1 1 5 5 2011 SRAC8 User Manual 3 3 2 EN input The EN input enables or disables the drive amplifier It is an optically isolated input that accepts a 5 to 24 volt single ended or differential signal The maximum voltage that can be applied to the Input is 28V When EN input is closed the driver amplifier is deactivated all the MOSFETs will shut down and the motor will be free When EN input is open the drive is activated When the drive has encountered an error and the fault is removed from the system a falling signal into the EN input will reset the error status and activate the drive amplifier again Switch or Relay closed logic low SRAC8 Connecting the Input to a Switch or Relay 5 24 volt Power Supply Indexer with Sinking Outputs Connecting the Input to Sinking Outputs 5 24 volt Power Supply Indexer with Sourcing Outputs Connectin
11. ling or fan forced cooling Surrounding Air Conditions Avoid dust oily mist and corrosive air Operating Temperature 0 40 C 32 104 F Maximum Ambient Humidity 90 non condensing Storage Temperature 10 70 C 14 158 F Rev 1 1 5 5 2011 16 SRAC8 User Manual 7 3 Torque Curves 34HD0802 01 34HD 1802 01 Drive SRAC8 Drive SRAC8 1 8A Peak 220V Microstep 25000 steps rev Microstep 25000 steps rev 6 5 E E z 2 g 3 S S G 2 1 0 0 10 20 30 40 50 Speed rps Speed rps 34HD2805 01 34HD4802 01 Drive SRAC8 1 8A Peak 220V Drive SRAC8 Microstep 25000 steps rev Microstep 25000 steps rev 7 6 5 a E E 4 2 S s 3 5 Ek 1 0 0 10 20 30 40 50 Speed rps Speed rps 34HD6801 01 Microstep 25000 steps rev 6 5 Torque N m w Speed rps Rev 1 1 LU 5 5 2011 SRAC8 User Manual 8 Contacting MOONS Service Center i 86 400 820 9661 m Headquarters No 168 Mingjia Road Industrial Park North Minhang District Shanghai 201107 P R China Tel 86 0 21 52634688 Fax 86 0 21 62968682 E mail info moons com cn m MOONS Industries Europe S r l Via Torri Bianche n 1 20059 Vimercate MB Italy Tel 39 039 62 60 521 Fax 39 039 96 31 409 m MOONS Industries South East Asia Pte Ltd 33 Ubi Avenue 3 08 23 Vertex Singapore 408868 Tel 65 6634 1198 Fax 65 6634 1138 m Shenzhen Branch Office Room 2209 22 F Kerry Center No 2008 Renminnan Road Shenzhen 51
12. sferred to the drive during rapid deceleration and the drive may indicate an over voltage error condition after stopping from a high speed motion The SRAC8 has regeneration clamping circuitry built in but requires an external resistor for operation To protect the drive in a high speed high load inertia application MOONS recommends connecting a 400hm 50W resistor to the regen connector located on the side of the SRAC8 drive Rev 1 1 5 5 2011 SRAC8 User Manual 3 2 Connecting to a Motor N p 2 Motor Connector N n At is Motor connections should be made according to the following diagrams 4 Lead Bipolar Motor Black A 4 LEAD MOTOR Green A Red B Blue B 6 Lead Center Tap 6 Lead Series Black At Black At 6 LEAD 6 LEAD Yellow A MOTOR Yellow NC MOTOR Green NC Green A B B NC B NC B Red White Blue Red White Blue 8 Lead Parallel 8 Lead Series PG White A Green Brown 8 LEAD 8 LEAD Green MOTOR Brown MOTOR Yellow C C Yellow Gray B Gray Pim Pink B Pink Ping Red D Rev 1 1 6 5 5 2011 SRAC8 User Manual 3 3 Connecting the Inputs and Outputs 3 3 1 Step amp Direction Inputs The SRAC8 Step Drive has two high speed optically isolated inputs called STEP and DIR They accept 5 to 24 volt single ended or differential signals up to 2MHz The maximum voltage that can be applied to the input is 28V The motor executes one step when the STEP input closes The direction of rotation
13. v 1 1 5 5 2011 12 SRAC8 User Manual 5 Motor selection Each position of the 16 bit rotary switch selects a different motor and automatically sets the configuration parameters in the drive The SRAC8 drive comes programmed with up to 16 typical motors as factory defaults Drives can be customized with specially selected motors when required When the motor selection is changed the drive power supply will need to be cycled Series Connected 34HD0802 01 Parallel Connected Series Connected 34HD1802 01 Parallel Connected Series Connected 34HD2805 01 Parallel Connected pe Series Connected 34HD4802 01 Parallel Connected renn Series Connected 34HD6801 01 Parallel Connected A 4 lead Biploar 4 lead Biploar C 4 lead Biploar 4 lead Biploar E 4 lead Biploar Rev 1 1 a 5 5 2011 SRAC8 User Manual 5 1 Recommended motors 34HD Series 1 8 3740 5 L 25 41 22 0 2 73 025 0 025 69 6 0 2 8 LEAD WIRES AWG22 UL3266 B B C C s 014 0 013 A 1320 Unit mm m These dimensions are for the double shaft models For the single shaft models ignore the shadow HE area Parameters Length Current A Phase KS Jr poe Wiring Of Q Phase Inertia Weight Part Shaft Diag Leads 34HD0802 01 Single Shaf 66 5 1100 34HD0802 02 Double Shaft 34HD4802 01 Single Shaf 34HD1802 01 Single Shaf B parallel a drive voltage drivevoltage 220VAC 110VAC
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