Chapter 2 - AutomationDirect
Contents
1. Wiring Connections and Configuration Switches Terminals Switches Indicators Status LEDs Rotary Switch FAULT FAULT EN EN DIR DIR STEP STEP DIP Switches Terminal Block 1757051 Removable Signal Power Terminal Block 1803633 OOODCOC R404908 gt Removable Terminal block part s shown are Phoenix Contact www phoenixcontact com External wiring is connected using two separate pluggable screw terminal connectors The power connections share a six position connector and the digital inputs and output share an eight position connector 2 4 SureStep Stepping Systems User Manual Fourth Edition 12 2012 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Connecting the Motor Warning When connecting a step motor to a SureStep STP DRV 6575 microstepping drive be sure that the motor power supply is switched off When using a motor not supplied by AutomationD irect secure any unused motor leads so that they can t short out to anything Never disconnect the motor while the drive is powered up Never connect motor leads to ground or to a power supply See the Typical Wiring Diagram shown in this chapter for the step motor lead color code of AutomationD irect supplied motors Four lead motors Four lead motors can only be connected one way as shown below Red 4 A lead A motor White Green Black B B 4 L2. e Automatic idle current reduction to reduce heat when motor is not moving switch selectable 50 or 90 of running current e Switch selectable step resolution 200 full step 400 half step 2 000 5 000 12 800 or 20 000 steps per revolution e Switch selectable microstep emulation provides smoother more reliable motion in full and half step modes e Automatic self test switch selectable e Operates from a 24 to 65 VDC power supply e Running current from 0 5 to 7 5A Block Diagram 24 65 DCG from extemal power supply 3 3 5 15V Regulators Voltage Status LEDs Sensors oN AMPLIFIER motor STEP Optical Digital DIR isolation Filter Overcurrent Sensors ___ Optical Software Isolation Filter DSP g g ouT1 CPtical Isolation 12345678 fi it 2 2 SureStep Stepping Systems User Manual Fourth Edition 12 2012 Chapter 2 SureStep STP DRV 6575 Microstepping Drive ue Specifications SureStep Microstepping Drive Specifications Part Number STP DRV 6575 Input Power 24 65 VDC external power supply required fuse at 7A fast acting Output Current 0 5 7 5 A phase peak of sine Current Controller Dual H bridge digital MOSFET 4 quadrant PWM at 20 kHz Step 5 24 VDC nominal range 4 30 VDC 5mA 4V 15 mA 30V O ptically isolated differential Minimum pulse width 0 5us Maximum pulse frequency 150 kHz or 2M H
3. in 1 2 position 2MHz e Jumper in 1 3 position 150 kHz factory default Rotary Switch Settings Motor Current Settings STP DRV 6575 Motor Selection Table Motor Data Drive Configuration Data a Rotary Switch Position F P N reserved custom NEMA 17 custom NEMA 23 custom NEMA 34 17040 3 03 1 60 434 17048 2 65 1 40 586 17060 i 3 30 2 00 883 23055 l 2 36 0 08 23079 l 3 82 1 10 34066 l 7 70 1 11 H 23079 1 18 0 40 H 34066 1 52 0 25 H 34097 2 07 0 03 H 34127 i 4 14 0 49 TmT mO OOD P O 0O NI OF A A W Fourth Edition 12 2012 SureStep Stepping Systems User Manual 2 11 Chapter 2 SureStep STP DRV 6575 Microstepping Drive E Alarm Codes In the event of a drive fault or alarm the green LED will flash one or two times followed by a series of red flashes The pattern repeats until the alarm is cleared STP DRV 6575 Alarm Codes Status LED Alarm Code Error solid green no alarm motor disabled flashing green no alarm motor enabled flashing red configuration or memory error 1 green 4red power supply voltage too high 1 green 5red over current short circuit t 1 green 6 red open motor winding 2 green 3 red internal voltage out of range 2 green 4 red power supply voltage too low Does not d
4. the same Anti resonance and damping feature improve motor performance Set motor and load inertia range to 0 4x or 5 10x St For smoother motion and more precise speed set the pulse step Poa resolution to 20000 12800 5000 2000 400 smooth 400 200 Resolution smooth or 200 steps rev Automatically rotates the motor back and forth two turns in each direction in order to confirm that the motor is operational Idle Current Reduction DIP Switches Load Inertia Self Test DIP Switch Settings Factory default all switches O FF Step Resolution steps rev 20000 12800 5000 2000 400 400 200 SMOOTH SMOOTH Load Inertia Idle Current Reduction Self Test aj y ON ON 100 90 80 120 5 10x 0 4x 50 90 ON OFF Use 120 when microstepping 2 10 SureStep Stepping Systems User Manual Fourth Edition 12 2012 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Jumper Settings Jumpers S3 and S4 are located on the internal circuit board and they can be accessed by removing the drive s front cover Remove connectors and cover to access Jumpers S3 and S4 They are located on the upper left corner of the circuit board Jumper S4 Step Pulse Noise Filter Jumper S3 Step Pulse Type Jumper S3 Step Pulse Type e Jumper in 1 2 position Step amp Direction factory default e Jumper in 1 3 position Step CW Step CCW Jumper S4 Step Pulse N oise Filter e Jumper
5. when unloaded Use the Recommended Component Compatibilty chart in the Chapter 1 Getting Started to select the appropriate SureStep power supplies for use with SureStep drives Current The maximum supply current you will need is the sum of the two phase currents However you will generally need a lot less than that depending on the motor type voltage speed and load conditions That s because the SureStep drives use switching amplifiers converting a high voltage and low current into lower voltage and higher current The more the power supply voltage exceeds the motor voltage the less current you ll need from the power supply We recommend the following selection procedure 1 If you plan to use only a few drives choose a power supply with at least twice the rated phase current of the motor 2 If you are designing for mass production and must minimize cost get one power supply with more than twice the rated current of the motor Install the motor in the application and monitor the current coming out of the power supply and into the drive at various motor loads This test will tell you how much current you really need so you can design in a lower cost power supply If you plan to use a regulated power supply you may encounter a problem with current foldback When you first power up your drive the full current of both motor phases will be drawn for a few milliseconds while the stator field is being established After
6. DRV 6575 STEP A O electrical noise problems There is no electrical 220pF ig a connection between the control and power circuits Giese within the drive and input signal communication between the two circuits is achieved by infrared light Externally the drive s motor power and control circuits should be supplied from separate D 220pF AY K sources such as from a step motor power supply EN O with separate power and logic outputs 220pF Aw K For bidirectional rotation supply a source of step EN pulses to the drive at the STEP and STEP i terminals and a directional signal at the DIR and FAULT I I Na nY DIR terminals Uy cree ee ee 1 The ENABLE input allows the logic to turn off the Drive Digital Input Circuit Current to the step motor by providing a signal to the EN and EN terminals The EN and EN terminal can be left unconnected if the enable function is not required All logic inputs can be controlled by a DC output signal that is either sinking NPN sourcing PNP or differential Connecting the Input Signals STEP and DIR Connecting Inputs to an Indexer with Sinking O utputs 2 STP DRV 6575 Indexer DIR DIR Dri with vs Sinking Outputs S RH N C STEP 6 4 3 3SH N C Od 6 STP DRV 6575 Indexer IR DIR Drive with 8 Sourcing Outputs SQH N C STEP 654 6 6RH N C Fourth Edition 12 2012 SureStep Stepping Systems User Manual 2 7 Chapter 2
7. SURESTEP STP DRV 6575 M ICROSTEPPING DRIVE In This Chapter FOUTS gavhiwa os oeedy petunia dha eee coda Awana sod 2 2 Block Diagram 6 ee ees 2 2 SpecificationS 2 0 ce ees 2 3 Typical Wiring Diagram 1 i ee 2 4 Wiring Connections and Configuration Switches 2 4 Connecting the Motor aaea cee eee 2 5 Connecting the Power Supply 00 00 eee eee 2 6 Connecting the I O 1 ce ees 2 7 SureStep Drive Digital Inputs and Outputs 2 7 Connecting the Input Signals STEP and DIR 2 7 Connecting the Input Signals EN Input 2 8 Connecting the Fault Output assas aa aaea 2 9 Drive Configuration ssaa aaaea 2 10 Drive Configurations SettingS s a s ssas cee eee 2 10 Alarm Codes 1 0 cc ee ees 2 12 Choosing a Power Supply 0 000 ee eee es 2 13 Mounting the Drive 00 ee 2 14 Dimensions and Mounting Slot Locations 2 14 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Features e Low cost digital step motor driver in compact package e Operates from Step amp Direction signals or Step CW amp Step CCW jumper selectable e Enable input amp Fault output e Optically isolated I O e Digital filters prevent position error from electrical noise on command signals jumper selectable 150 kHz or 2MHz e Rotary switch easily selects from many popular motors e Electronic damping and anti resonance
8. SureStep STP DRV 6575 Microstepping Drive E Connecting the Input Signals STEP and DIR continued Connecting Inputs to an Indexer with D ifferential O utputs Indexer with Differential Outputs N C N C Connecting the Input Signals EN Input The ENABLE input allows the user to turn off the current to the motor by providing a 5 24 VDC positive voltage between EN and EN The logic circuitry continues to operate so the drive remembers the step position even when the amplifiers are disabled However the motor may move slightly when the current is removed depending on the exact motor and load characteristics Warning 24VDC is the maximum voltage that can be applied directly to the standard speed EN input If using a higher voltage power source install resistors to reduce the voltage at the input Do NOT apply an AC voltage to an input terminal Connecting ENABLE Input to Relay or Switch switch or relay closed logic low Proximity sensor STP DRV 6575 Drive 2 8 SureStep Stepping Systems User Manual Fourth Edition 12 2012 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Connecting ENABLE Input to PNP Proximity Sensor Proximity Sensor j Leave the ENABLE input unconnected if you do not need to disable the amplifiers Connecting the Fault Output The SureStep advanced drives have one digital output that has separate and terminals and can be used to sink or source c
9. eads j All AutomationD irect SureStep motors are four lead bipolar step motors Six lead motors Six lead motors can be connected in series or center tap Motors produce more torque at low speeds in series configuration but cannot run as fast as in the center tap configuration In series operation the motor should be operated at 30 less than rated current to prevent overheating a_Grn Wht A Grn Wht 6 6 n c bauli lead A Aig lead motor motor As Green ale Green Red Red Red Black Wht Red Black Wht B nic B B B nic 6 Leads Series Connected 6 Leads Center Tap Connected j Step motor wire lead colors vary from one manufacturer to another Fourth Edition 12 2012 SureStep Stepping Systems User Manual 2 5 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Eight lead motors Eight lead motors can also be connected in two ways series or parallel Series Operation gives you more torque at low speeds but less torque at high speeds When using series connection the motor should be operated at 30 less than the rated current to prevent over heating Parallel operation allows greater torque at high speeds When using parallel connection the current can be Increased by 40 above rated current Care should be taken in either case to assure that the motor does not overheat Orange Orange A A BIk Org Wht 8 Wht 8 lead a lead rg BIk Wht motor Wht motor A A Black Black Red Red Red Yel Ye
10. isable the motor The alarm will clear about 30 seconds after the fault is corrected Disables the motor Cannot be cleared until power is cycled t The over current short circuit alarm typically indicates that an electrical fault exists somewhere in the system external to the drive This alarm does not serve as motor overload protection 2 12 SureStep Stepping Systems User Manual Fourth Edition 12 2012 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Iu Choosing a Power Supply Fourth Edition Voltage Chopper drives work by switching the voltage to the motor terminals on and off while monitoring current to achieve a precise level of phase current To do this efficiently and silently you ll want to have a power supply with a voltage rating at least five times that of the motor Depending on how fast you want to run the motor you may need even more voltage Generally more is better the upper limit being the maximum voltage rating of the drive itself If you choose an unregulated power supply do not allow the no load voltage to exceed the maximum voltage rating of the drive Unregulated supplies are rated at full load current At lesser loads such as when the motor is not moving the actual voltage can be up to 1 4 times the voltage list on the power supply label The STP PW R xxxx power supplies are designed to provide maximum voltage while under load without exceeding the drive s upper voltage limit
11. llow tet Wht Wht e Red B B p Wht Wht B 8 Leads Series Connected 8 Leads Parallel Connected Step motor wire lead colors vary from one manufacturer to another Connecting the Power Supply An STP PW R xxxx power supply from AutomationDirect is the best choice to power the step motor drive If you need information about choosing a different power supply refer to the section entitled Choosing a Power Supply in this chapter If your power supply does not have a fuse on the output or some kind of short circuit current limiting feature you need a fuse between the drive and the power supply Install the fuse on the power supply lead e Connect the green ground screw to earth ground e Use 18 or 20 AWG wire Fuse EMI External fuse not req d when using an STP PWR xxxx P S fuse is internal CE use requires an EMI line filter Do NOT use STP PWR 70xx power supplies with an STP D RV 6575 drive because those power supplies exceed the voltage limit of this drive 2 6 SureStep Stepping Systems User Manual Fourth Edition 12 2012 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Connecting the I O SureStep Drive Digital Inputs and Outputs The SureStep STP DRV 6575 drive includes two high speed 5 24 VDC digital inputs STEP amp DIR one standard speed 5 24 VDC digital input EN and one 30 VDC digital output Fault Internal tothe The digital inputs are optically isolated to reduce STP
12. n mm 7 118 4 0 13 4 40 3 2 111 8 4X 0 14 3 6 1 2 98 0 89 75 6 22 7 T j 1 04 aall R EEEE 26 5 0 22 0 41 T 15 6 10 5 0 35 bo 1 8 9 33 01 2 14 SureStep Stepping Systems User Manual Fourth Edition 12 2012
13. that the amplifiers start chopping and much less current is drawn from the power supply If your power supply thinks this initial surge is a short circuit it may foldback to a lower voltage With many foldback schemes the voltage returns to normal only after the first motor step and is fine thereafter In that sense unregulated power supplies are better SureStep STP PWR xxxx power supplies from AutomationDirect are the best choices of DC power supply to use with SureStep STP DRV xxxx D microstepping drives 12 2012 SureStep Stepping Systems User Manual 2 13 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Ej Mounting the Drive You can mount your drive on the wide or the narrow side of the chassis using 2 6 screws Since the drive amplifiers generate heat the drive should be securely fastened to a smooth flat metal surface that will help conduct heat away from the chassis If this is not possible then forced airflow from a fan may be required to prevent the drive from overheating e Never use your drive in a space where there is no air flow or where the ambient temperature exceeds 50 C 122 F e When mouting multiple STP D RV xxxx drives near each other maintain at least one half inch of space between drives e Never put the drive where it can get wet e Never allow metal or other conductive particles near the drive Dimensions and Mounting Slot Locations 4 66 Dimensions i
14. tions performance Set motor and load inertia range to 0 4x or 5 10x Step For smoother motion and more precise speed set the pulse step resolution to Resolution 20000 12800 5000 2000 400 smooth 400 200 smooth or 200 steps rev Automatically rotate the motor back and forth two turns in each direction in order Self Test to confirm that the motor is operational Drive Cooling Method Natural convection mount drive to metal surface Mounting Use 2 6 screws to mount wide or narrow side to metal surface Removable Connectors M otor amp Power Supply Screw term blocks Phoenix Contact 1757051 30 12AW G Signals Screw terminal blocks Phoenix Contact 1803633 30 14 AWG Weight 10 8 oz 306g including mating connectors Operating Temperature 0 to 85 C 32 to 185 F interior of electronics section Ambient Temperature 0 to 50 C 32 to 122 F drive must be mounted to suitable heat sink Humidity Maximum 90 non condensing Agency Approvals Fourth Edition 12 2012 CE EMC amp LVD RoHS SureStep Stepping Systems User Manual Chapter 2 SureStep STP DRV 6575 Microstepping Drive Typical Wiring Diagram Step Motor Power Supply SureStep Typical Wiring Diagram Motor Power 5VDC xx VDC Logic Power DRV xxxx Stepper Drive Extension Cable 12 Motor Pigtail Step Motor STE hy A20 with Connector STP MTR H xxxxx D
15. urrent Connecting FAULT Output to Inductive Relay relay coil inductive load STP DRV 6575 Drive 1N4935 suppression diode STP DRV 6575 Drive FAULT amp STP DRV 6575 Drive Do not connect more than 30 VDC Current must not exceed 80 mA Fourth Edition 12 2012 SureStep Stepping Systems User Manual 2 9 Chapter 2 SureStep STP DRV 6575 Microstepping Drive Ej Drive Configuration You need to configure your drive for your particular application before using the drive for the first time The SureStep STP D RV 6575 microstepping drive offers several features and configuration settings including Drive Configurations Settings STP DRV 6575 Configuration Settings T Configuration Feature Description Method Motor Phase Select motor based on part number or set by motor current Rotary Switch Step and Direction default Step signal step pulse Direction signal direction Step CW amp CCW Step signal CW step Direction signal CCW step Jumper S3 Noise Filter Select 150 kHz or 2MHz default Jumper S4 Reduce power consumption and heat generation by limiting Current motor running current to 100 90 or 80 of maximum Reduction Current should be increased to 120 if microstepping Torque is reduced increased by the same Reduce power consumption and heat generation by limiting motor idle current to 90 or 50 of running current Holding torque is reduced by
16. z user selectable Function Step or Step CW pulse Input Signals Direction 5 24 VDC nominal range 4 30 VDC 5mA 4V 15 mA 30V O ptically isolated differential Minimum pulse width 0 5us Maximum pulse frequency 150 kHz or 2M Hz user selectable Function Direction or Step CCW pulse Enable 5 24 VDC nominal range 4 30 VDC 5mA 4V 15 mA 30V O ptically isolated differential Function disable motor when closed Output Signal Fault 30 VDC 80mA max optically isolated photodarlington sinking or sourcing Function closes on drive fault Rotary Switch Selectable Function Select motor based on part number or by motor current Step Pulse Step and Direction Step signal step pulse Direction signal direction Jumper Type Step CW amp CCW Step signal CW step Direction signal CCW step Selectable aa Functions gt SP USE Select 150 kHz or 2MHz Noise Filter Client Reduce power consumption and heat generation by limiting motor running current Reduction to 100 90 or 80 of maximum Current should be increased to 120 if microstepping Torque is reduced increased by the same Idle Current Reduce power consumption and heat generation by limiting motor idle current to DIP Switch Reduction 90 or 50 of running current Holding torque is reduced by the same Selectable load inerta Anti resonance and damping feature improves motor Func
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