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DM805-AI Hardware Installation Manual

9

HWMN-DM-R2011060

5V

0V

Motor Speed

Fully CW of HiSpeed Potentiometer

Analog

Input

-25rps

25rps

0rps

Half CW of HiSpeed Potentiometer

2.5V

Dead Band

Signal Sequence

Enable/Disable

Run/Stop

2.5-5V Input

Run

Stop

Positive Direction

Negative Direction

0-2.5V Input

Ramp Shaping

There are two potentiometers Accel and Decel for adjusting the acceleration ramp and deceleration ramp, respectively. When the input
ramp exceeds the value set by the potentiometer, the actual output ramp will be limited by the potentiometer value.

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Summary of Contents for DM805-AI

Page 1: ...Hardware Installation Manual for DM805 AI Digital Stepper Drive with Analog 0 5V Input www leadshine com HWMN DMAI R20110627 ...

Page 2: ...others Leadshine 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 Leadshine s terms and conditions of sales the user of Leadshine s products in life support or aircraft applications assumes all risks of such use and indemnifies Leadshine against all ...

Page 3: ...s document Caution Make sure the power supply voltage dose not exceed the drive s input range Double check the connections and make sure the power lead polarity is correct Warning Do not set high current to small stepper motor It is possible that the motor will be damaged Caution Disconnect the motor from the load if you are not sure the move direction Adjust the axis in the middle before trying t...

Page 4: ...ed Mode 5 Signal Sequence 6 Ramp Shaping 6 Low High Speed Mode 7 Signal Sequence 7 Ramp Shaping 8 External Potentiometer Mode 8 Signal Sequence 9 Ramp Shaping 9 Pulse Direction Mode 10 5 Control Signal Requirement 10 Pulse Direction Mode 10 6 Connecting the Motor 11 4 lead Motors Connections 11 6 lead Motors Connections 11 Half Coil Configurations 11 Full Coil Configurations 11 8 lead Motors Conne...

Page 5: ...step Resolution Selection 20 Current Settings 20 Dynamic current setting 20 Idle current setting 21 11 Protection Functions 22 Over current Protection 22 Over voltage Protection 22 Protection Indications 22 12 Frequently Asked Questions 23 Problem Symptoms and Possible Causes 23 APPENDIX 24 Twelve Month Limited Warranty 24 Exclusions 24 Obtaining Warranty Service 24 Warranty Limitations 24 Shippin...

Page 6: ...V power supply output for customer use Features Anti Resonance provides optimum torque and nulls mid range instability Motor self test and parameter auto setup technology offers optimum responses with different motors Multi Stepping allows a low resolution step input to produce a higher microstep output for smooth system performance Command Source 0 5V built in potentiometer and pulse Two preset v...

Page 7: ...Hz Velocity Control Item Specification Dead Band Resolution Min Max Analog Input 0 5V Speed Mode 0 5 V 10 mV 10 mV 0 Rev s 25 0 5 Rev s External POT Mode 20 mV Accel Decel Ramp Potentiometer 0 25 turns 10 mV 10 mV 0 5 Rev s2 250 1 Rev s2 LoSpeed Potentiometer 0 25 turns 10 mV 10 mV 0 Rev s 5 0 01 Rev s HiSpeed Potentiometer 0 25 turns 10 mV 10 mV 0 Rev s 25 0 5 Rev s Operating Environment Cooling ...

Page 8: ... 409 118 4 646 Elimination of Heat Driver s reliable working temperature should be 70 158 and motor working temperature should be 80 176 It is 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 It is recommended to mount the driver vertically to maximize heat sink area Use forced cooling method ...

Page 9: ...ator flashes periodicity to indicate the error type Power Connector 6 pin screw terminal 3 81 mm space Digital I O Signal Connector 6 pin screw terminal 3 81 mm space Analog Signal Connector 6 pin screw terminal 3 81 mm space Indicator Green Power Red Fault Potentiometers Adjusting Speed Acceleration Deceleration RS232 communication port RJ11 communicating PC software Note It is used to configure ...

Page 10: ...l Potentiometer Speed Mode Pulse Direction off off Pulse and Direction Position Mode Analog 0 5V Speed Mode In this mode motor speed follows the analog 0 5V input voltage Motor speed is also proportional to the HiSpeed potentiometer Direction input controls the motor direction The actual motor speed is calculated as follows Turns ter Potentiome HiSpeed of Turns V Input Ana RPS Speed RPS 25 5 log 5...

Page 11: ...al is active the motor speed follows the analog 0 5V input Enable Disable Run Stop Direction 0 5V Input Positive Negative Run Stop Low Speed High Speed Enable Ramp Shaping There are two potentiometers Accel and Decel for adjusting the acceleration ramp and deceleration ramp respectively When the input ramp exceeds the value set by the potentiometer the actual output ramp will be limited by the pot...

Page 12: ...eter is 5rps When the Speed input is HIGH level the maximum motor speed adjusted by the HighSpeed is 25rps 25 turns 0 Motor Speed HiSpeed Potentiometer Potentiometer LoSpeed Potentiometer Dead Band 25 0 5rps 5 0 02rps Signal Sequence After power up the DM805 AI does not make the motor run immediately The Enable and Run signal should be activated firstly Drive is enabled when the Enable Disable inp...

Page 13: ...motion Note Do not adjust too small or too high Ramp Otherwise the stepper motor may stall when switching between low and high speed Motor Speed Shaped by Ramp Potentiometer Time Actual Speed Command Speed Shaped by Ramp Potentiometer Low Speed High Speed External Potentiometer Mode In this mode motor speed follows the analog 0 5V input voltage Motor speed is also proportional to the HiSpeed poten...

Page 14: ...ead Band Signal Sequence Enable Disable Run Stop 2 5 5V Input Run Stop Positive Direction Negative Direction 0 2 5V Input Ramp Shaping There are two potentiometers Accel and Decel for adjusting the acceleration ramp and deceleration ramp respectively When the input ramp exceeds the value set by the potentiometer the actual output ramp will be limited by the potentiometer value ...

Page 15: ...the pulse input frequency and motor rotary angle is controlled by the pulse counts The microstep can be selected by the DIP switch SW5 and SW6 5 Control Signal Requirement Pulse Direction Mode DM805 AI can support Pulse Direction and CW CCW control signal modes In order to avoid some fault operations and deviations PUL DIR and ENA should abide by some rules shown as following diagram U Remark a EN...

Page 16: ...f coil is so described because it uses one half of the motor s inductor windings The higher torque configuration or full coil uses the full windings of the phases Half Coil Configurations As previously stated the half coil configuration uses 50 of the motor phase windings This gives lower inductance hence lower torque output Like the parallel connection of 8 lead motor the torque output will be mo...

Page 17: ... configuration has the most inductance the performance will start to degrade at higher speeds In series mode the motors should also be run at only 70 of their rated current to prevent over heating Parallel Connections An 8 lead motor in a parallel configuration offers a more stable but lower torque at lower speeds But because of the lower inductance there will be higher torque at higher speeds Mul...

Page 18: ...d 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 mot...

Page 19: ...DM805 AI Hardware Installation Manual 14 HWMN DM R2011060 The recommended power supply voltage for DM805 AI is 24 72VDC ...

Page 20: ... circuit to the signal GND When the Limit switch is activated the motor shaft will be free and the red indicator is on Accel Decel HiSpeed DM805 AI Motor 20 80VDC Disable Limit Direction Run Stop 0 5V COM Run Stop Pulse Direction Limit Speed Limit Enable Disable Signal GND 5V Output 0 5V Input Signal GND Signal GND Power GND 20 80VDC Motor A Motor A Motor B Motor B Accel Ramp Decel LoSpeed HiSpeed...

Page 21: ...e Accel Ramp DecelLoSpeed HiSpeed COM Run Stop Pulse Direction Limit Speed Limit Enable Disable Signal GND 5V Output 0 5V Input Signal GND Signal GND Power GND 20 80VDC Motor A Motor A Motor B Motor B DM805 AI Motor 20 80VDC Disable Speed Direction Run Stop Ramp LoSpeed HiSpeed ...

Page 22: ...l HiSpeed DM805 AI Motor 20 80VDC Disable Limit Limit Run Stop 10k 0 2 5V Negative 2 5 5V Positive COM Run Stop Pulse Direction Limit Speed Limit Enable Disable Signal GND 5V Output 0 5V Input Signal GND Signal GND Power GND 20 80VDC Motor A Motor A Motor B Motor B Accel Ramp Decel LoSpeed HiSpeed ...

Page 23: ...prevent noise incurred in PUL DIR signal pulse direction signal wires and motor wires should not be tied up together It is 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 drives separately connecting the drives...

Page 24: ...ating Mode Auto Configuration by SW4 To get the optimized performance switch SW4 two times in one second to identify the motor parameter after power up if it is the first time installation The motor parameter is identified and the drive s current loop parameters are calculated automatically when SW4 is activated The motor shaft will have a little vibration during auto configuration If the user cha...

Page 25: ...solution Microstep 200 Re The motor speed can be calculated as follows solution Microstep Frequency Input Pulse RPS Speed Motor Re When selecting the drive s microstep resolution for the system Consider the MAX speed needed MAX input frequency of driver and MAX output frequency of the controller 1600 pulses revolution 8 Microstep is suitable for most application 1600 pulses revolution only increas...

Page 26: ...he idle current OFF meaning that the motor coil current is automatic reduced and ON meaning that current is the same as the selected dynamic current By default the current automatically reduced to 60 of the selected dynamic current two second after the last pulse Theoretically this will reduce motor heating to 36 due to P I2 R of the original value If the user wants to change the idle time and cur...

Page 27: ...us current exceeds the limit or in case of short circuit between motor coils or between motor coil and ground and RED LED will turn on once within each periodic time Over voltage Protection When power supply voltage exceeds the limit protection will be activated and RED LED will turn on twice within each periodic time U Note U When above protections are active the motor shaft will be free or the L...

Page 28: ...rol systems can be traced to electrical noise controller software errors or mistake in wiring Problem Symptoms and Possible Causes Symptoms Possible Problems Motor is not rotating No power Microstep resolution setting is wrong DIP switch current setting is wrong Fault condition exists The drive is disabled Motor rotates in the wrong direction Motor phases may be connected in reverse The drive in f...

Page 29: ...ng 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 ...

Page 30: ...ralia 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 26050 Towne Centre Dr Foothill Ranch CA 926 USA Tel 1 949 608 7270 Fax 1 949 608 7298 Web http www leadshineUSA com...

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