C11- MULTIFUNCTION CNC BOARD Rev. 9.3 - Stepper Motor ...

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C11 (Rev. 9.3) User ManualFig. 12. Motor Tuning and Setup screenshot.After configuring the Mach, these steps should be followed.Step 1. Ensure that all external power sources are set to OFF.Step 2. Connect the power supply to the Power Inputs Connectors (X1).Step 3. Turn on the external suppliesStep 4. Connect a multimeter in the analog outputs connectors (X2) and make andfine tune this output:Make sure that when you reach the maxspeed in the control software you get 10VDCout (X2). This voltage can vary dependingon many things, including the electricalproperties of parallel port or breakout boardyou are using, the length of the step pulseyour software is delivering, and the normal hior low status of your step pin. Play with thepot, hi/low status of the pin, and pulse lengthto fine tune the output voltage.6.3 Electromechanical relays. (pins 1 and 16)Mechanical relays are very flexible because they can be used for AC or DC andcome with NO and NC (Normally Open and Normally Closed) positions. Relay areindependents, one reacts to Pin 1 and the other one to Pin16 and that both can beused at the same time. The relay specification are showed in the below table.ELECTROMECHANICAL RELAYS SPECIFICACTIONSMaximun Current (AC)7A@240VAC; 10A@125VACRevision: 01/27/2010 http://cnc4pc.com/TechDocs/C11R9_3_User_Manual.pdf 18/22
C11 (Rev. 9.3) User ManualMaximun Current (DC)15A@524VDC; 10A@28VDCTable 2. Electromechanical Relays Specifications.6.4 Using the COM configuration jumper.This is for selecting the value toget at the COM terminals foundnext to step and directionterminals (Pin2 2-9). Some driversexpect a ground, and othersexpect +5vdc. There is a jumperthat allows you to select +5VDC orGND for the COM pins.1-2: COM= +5V2-3: COM= GND7. Troubleshooting.SYMPTOM 1: THE BOARD DOES NOT REKAY THE SIGNAL.POSSIBLE CAUSEPOSSIBLE SOLUTIONS- Pin conflict or mach3 configuration.It is possible that the port addressused for the pin is not right, or thatthere is a pin conflict with the. That isthat you are using that same pin twice.(it could be assigned to a differentfunction).- The board does not like thewaveform it is getting. Somebreakout boards could invert thesignals or modify the pulse width.- Go to the device manager in windows,and check the memory address used forthe parallel port you are using. Usually itwill be 378 for LPT1. Check also thatthe port does not have a conflict. Thenin mach3, go to Ports & Pins / Port Setupand Axis Selection. Check the memoryaddress is correct.- Check that the pin you are using is notbeen used anywhere else in your setup.Got to motor output and output signals,and check all the entries.- Play with the active low status of the pinused for the frequency.Revision: 01/27/2010 http://cnc4pc.com/TechDocs/C11R9_3_User_Manual.pdf 19/22
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C11- MULTIFUNCTION CNC BOARD Rev. 9.3 - Stepper Motor ...

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