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CSD205H

1. CW CCW Pulse Mode Signal Mode Off Pulse Direction Mode Control System In M otion Page 7 CSIM Inc SETCTION 5 OPERATION INSTRUCTIONS 5 1 Motor Selection The CSD205H microstepping drive module is a current controlled driver to maintain a given set of motor current It chops the voltage using a constant chopping frequency and varying duty cycle This characteristic is directly related to the motor s winding resistance and inductance To avoid improperly chopping it is necessary to choose a motor with a low winding resistance In fact a motor s winding resistance is usually related to its current rating Lower winding resistance means higher current rating In this case selecting the motor with current rating approximate to but no more than 5 Amps and with the lowest possible winding resistance is a good practice Since the CSD205H microstepping drive module is a constant current driver it is not necessary to use a motor that is rated at the same voltage as the supply voltage 5 2 Supply Voltage The CSD205H microstepping drive module works with a wide range of input voltage from 24Vdc to 75Vdc For better performance however use of higher voltage is recommended The higher the voltage used the faster the current can flow through the motor coils This means the higher step rate However care should be taken not to exceed the maximum voltage 75Vdc An unregulated supply similar to that shown in Figure 5 1 i
2. power supply minus connection Connecting the pins incorrectly will not damage the CSD205H because of the built in protect circuit but the CSD205H will not operate An unregulated power supply coupled with a filter capacitor is preferable A switching regulated power supply may not be suitable for use with the CSD205H Please refer to section5 2 about the supply voltage CONTROL SIGNAL INPUT The control signal input is made via the 4 terminal Head JP3 Table 3 2 JP3 Pin Pin Name Function Description 1 OPTO This terminal should be connected to 5Vdc supplied power for the opto isolators Pulse CW In pulse mode A high to low transition on this SW 8 On terminal will advances the motor one step The direction is determined by Pin 3 state In CW CCW mode A high to low transition on this SW 8 Off terminal will advance the motor one step in clockwise direction OPTO This terminal should be connected to 5Vdc supplied power for the opto isolators DIR CCW In pulse mode When the signal is high motor rotation SW 8 On will be clockwise Rotation will be counterclockwise when the signal is low In CW CCW mode A high to low transition on this SW 8 Off terminal will advance the motor one step in counterclockwise direction OPTO This terminal should be connected to 5Vdc supplied power for the opto isolators Hold Off When the signal is low output current will be ze
3. CSD205H MICROSTEPPING DRIVE MODULE USER S MANUAL CSIM Inc Control System In M otion September 2002 SECTION 1 1 1 1 2 1 3 SECTION 2 SECTION 3 3 1 3 2 3 3 SECTION 4 SECTION S 5 1 5 2 5 3 5 4 5 5 SECTION 6 6 1 6 2 TABLE OF CONTENTS INTRODUCTION ct ee OVERVIEW atada ode sats Product Features o eee nene eee Electrical Specifications mereeereeeee EXPRESS START UP PROCEDURE TERMINAL LOCATIONS AND ASSIGNMENTS Motor connection Powempit omamist Control Signal Input EE DIP SWITCH SETTINGS oouaaa aa aa aa a ae aa aa ene ca OPERATION INSTRUCTION aa Motor Compatibility oe eee eee eeeenees Supply Ve TEE Current Selling gassuvedessavrsduwioesscanduever rd Current Damping Function ow eee eee eee eee Automatic Current reduction o ee eee eee ee eee eee eee TROUBLE SHOOTING eee eee e cece cece essen e ee 1 General E EAEE E hale CHICK TASH ate Control System In M otion Page 1 9 N NNN naa A A VD O O 00 00 00 10 10 CSIM Inc SECTION 1 INTRODUCTION 1 1 Overview The CSD205H Microstepping Drive Module is microstepping driver a high performance It can provide an output current up to 6 rms amperes per phase to operate a step motor at 40 000 microsteps per revolution 1 2 Product Features Single power supply input High and wide range i
4. current to a 50 level Control System In M otion Page 9 CSIM Inc SECTION 6 TROUBLESHOOTING 6 1 In General If installation and operating instructions have been followed carefully the CSD205H microstepping drive module should operate correctly In case the motor fails to rotate properly the following check list will be helpful to locate and correct the problem e oe supplied Check all installation wiring carefully for wiring errors or poor connections Check to see that a proper voltage level i e 24Vdc 75Vdc is being Be sure that the motor s leads are correctly connected to CSD205H microstepping drive module s corresponding phase terminals 6 2 Check List SYMPTON PROBLEM POSSIBLE SOLUTION Indicator LED not lit Without input voltage or the power polarity is inversed Connect input voltage properly The fuse is burned Replace a new fuse of 6 Amps rating But if the fuse is still burned don t try this again Motor has no holding torque with Motor is cross wired with each winding connected to Reconnect motor windings to the corresponding phase torque but can not rotate power applied to both Phase A and Phase B terminal the driver Hold Off Input is Hold Off input Pin4 of JP4 enabled should be high or not connect Motor has holding Step pulse input is absent Check pulse input with an oscilloscope If the pulse train is ab
5. nput voltage 24 to 75Vdc Switch selectable current level from 3 to 6 Amps rms 4 2 to 8 4 Amps peak Switch selectable microstepping resolution from 400 to 40 000 microsteps per revolution Automatic idle current reduction Optically isolated inputs Input signals use Pulse Direction mode or CW CCW pulse mode is selectable by a switch Selectable current damping function to reduces resonant vibration and noise at low speed Motor clockwise or counterclockwise rotate can be swapped by a switch All input signal terminals are equipped with convenient Snap In head 1 3 Electrical Specifications ITEM Min Typ Max Input power 24Vdc 65Vdc 75Vdc Output current per phase 3 Amps RMS 6 Amps RMS 4 2 Amps Peak 8 4 Amps Peak Microstep resolution 400 40 000 steps revolution steps revolution Maximum input pulse rate 1 000 000 pulses sec Control System In M otion Page 2 CSIM Inc SETCTION 2 EXPRESS START UP PROCEDURE The following instructions define the minimum procedures necessary to make the CSD205H microstepping drive module operational Ji Check the motor used is suitable to the CSD205H Please refer to the section 5 1 about how to select a motor Set the correct current level for the motor as described in section 4 and section 5 3 While the current setting is more than 3 amps heat sinking may be required to maintain case temperature below 70 C Select the appropriate step resolution and set the swi
6. ro There will be no holding torque at this state Control System In M otion Page 5 CSIM Inc CSD205H JP3 330 ohms PIN 1 st PIN 2 330 ohms PIN 3 PIN 4 330 ohms PIN 5 PIN 6 Figure 3 2 Input Interface Circuit 12Vdc Ohms H A3 same as pin 1 same as pin 2 CSD205H same as pin 1 5 same as pin 2 5Vdc 11 JP3 CSD205H same as pin 2 i 5Vdc JP3 same as pin 1 CSD205H same as pin 2 7406 same as pin 1 same as pin 2 Figure 3 3 Suggested Methods for Input Control System In M otion Page 6 CSIM Inc SECTION 4 DIP SWITCH SETTINGS Table 4 1 Dip Switch Function Select Switch Position Description Channel No 1 2 Set Output Swl Sw2 Output Current Refer to Current RMS Peak section 5 3 On On 6Amps 8 4Amps Off On 5 Amps 7 Amps On Off 4Amps 5 6 Amps Off Off 3 Amps 4 2 Amps 3 Set Current On Enable Current Damping Refer to Damping Off Disable Current Damping section 5 4 4 Chang Motor Switch On Off will alternate the Rotate motor s default rotate direction Direction 5 7 Select Sw5 Sw6 Sw7 Microsteps Per The value list Microstep Resolution is based on to Resolution On On On 40 000 use 1 8 Step Off On On 20 000 Motor On Off On 10 000 Off Off On 5 000 On On Off 2 000 Off On Off 1 600 On Off Off 1 000 Off Off Off 400 8 Select Input On
7. s preferable If a regulated supply is used it must be a linear regulated supply and should be capable of operating with added filter capacitor A switching regulated supply is not recommended F1 AC110V 1 nm 5 AC48v FUSE 5A DC65V TRANSFORMER 240VA D1 C1 BRIDGE 10 000U 100V Figure 5 1 Control System In M otion Page 8 CSIM Inc 5 3 Current Setting The CSD205H can provide 4 different current levels from 3 to 6 Amps This is selected by the dip switch 1 to 2 Please refer to the Table 4 1 It is important to set the current level according to the motor s current rating A lower current setting will reduce the motor s torque and speed performance On the other hand a higher current setting will cause the motor over heating 5 4 Current Damping Function The CSD205H has a selectable current damping function Setting the dip switch 3 to On position will reduce output current at low speed This could reduce the motor s resonant vibration and noise However it may also reduces the motor s low speed output torque Setting the current damping On will not affect the high speed performance 5 5 AUTOMATIC CURRENT REDUCTION The CSD205H microstepping drive module will automatically reduce the output current to the motor while in idle state The reduction occurs approximately 1 second after the last falling edge of the step pulse input The CSD205H microstepping drive module will reduce the
8. sent troubleshoot stepping source and interconnection wiring Only one motor phase has been driven Check phase current in both phases by placing an ammeter in series with each winding If not present check for open circuit in motor phase winding by measure the resistance Start speed is too high Lower the start speed Control System In M otion Page 10 CSIM Inc SYMPTON PROBLEM POSSIBLE SOLUTION Motor misses steps Output current level setting is too low Set current to higher level Improper use Current Damping Disable Current Damping Speed or acceleration is too high Lower the speed Motor operation is rough or erratic Operation is on resonance region Change work speed Use Current Damping function Microstep resolution setting is improper For instance 400 steps per revolution at low speed Adjust microstep resolution to a higher value Output current level setting is too high Set current to a lower level CSIM Inc Control System In M otion Control System In M otion Page 11 CSIM Inc
9. tches as described in section 4 Connect the motor following the Motor Connections description in section 3 1 Connect the control input signal as described in section 3 3 Connect the power source to the DC input terminal as described in section 3 2 The indicate LED should turn on immediately after power on The motor will be locked by a holding torque Send the pulses signal input to driver the motor should rotate according to the pulse rate and the step resolution set If the motor s rotation direction is improperly swap the dip switch 4 as description in section4 will change it Caution Always disconnect the power to the module before connecting or disconnecting the motor leads Failure to do this will result in a shock and may damage the driver Control System In M otion Page 3 CSIM Inc SECTION 3 TERMINAL LOCATIONS AND ASSIGNMENTS 3 1 Motor Connection The motor connections are made via the 4 terminal Head JP2 Table 3 1 JP2 Pin Assignment 4 Phase B 3 Phase B 2 Phase A 1 Phase A The CSD205H is a Bipolar driver It could work equally well with both Bipolar motors i e 4 and 8 lead motors and Unipolar motors i e 6 lead center tapped motors Figure 3 1 Motor connection Control System In M otion Page 4 CSIM Inc 3 2 3 3 Power Input The DC input power is connected to head JP1 Please be aware that pin is the power supply plus connection and pin is the

CSD205H

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