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Servo Motor Terminology: 
 

Enable/Disable: 

The ability of a drive to release the motor to freewheel (disabled).

 

 

Encoder: 

a device that is connected to the motor shaft and measures the motor rotation

 

in small 

increments called ‘lines’ or ‘counts’. These are converted into electrical pulses that are sent to the 
servo Drive so that the motor position is known.  

 
Pulse or Signal Multiplier a.k.a

. ‘Electronic Gearing’: 

Some drives have the capacity to receive 

extremely high speed signals. If the CNC system is not capable of producing a very high speed 
signal, an electronic ‘ratio’ is established so that the slower signal is ‘multiplied’ to achieve the very 
high data rates needed by the drive. For example, if the multiplier is set at 10, every pulse coming into 
the drive is counted as if it were 10 pulses.

 

 
RPM and MAX RPM: 

Revolutions Per Minute. The speed at which the motor is turning. The 

MAXimum for each motor is established by the manufacturer and generally printed on a plate 
attached to the motor. 

 

 

 
Signals and Hardware Terminology: 

 

A/D Converter:

  Computers process and move digital data; however, there is a need, particularly in 

instrumentation, like a thermostat, for example, to have analog signals. Most of us are interested in 
the temperatures between freezing and boiling for example, so a signal that can represent any value 
is needed.  Because computers can only process digital signals, passing analog data to a computer 
requires an Analog-to-Digital converter, or A/D for short. 
 

Analog Signals:

 Like a digital signal, analog represents the values using voltage; but unlike digital, 

where you only have high and low, analog can represent everything in between. The voltage is 
normally not divided into tiny slices of time like digital, but rather the continuous presence of some 
particular variable voltage. 
 

Break Out Board:

  Very simple concept. A plug with any tiny pins at each end, such as a typical 

printer cable, is a difficult device to connect individual wires to. To solve this dilemma, a BOB simply 
has the correct plug for the many pi

ns in the cable connector and ‘Breaks Out’ each of those wires to 

an accessible terminal (typically a screw clamp type).  

 
COM Port: 

COMmunication ports carry a 

Serial

 signal

 (pulses lined up on a single wire). Also 

physically and electronically defined by IBM, but targeted at devices like modems that carry serial 
signals 
 

Differential Signals

Keyword here is ‘different’. The signal is split into two mirror images and 

transmitted across a pair of wires that are twisted together (Twisted pair, or UTP). Unlike single 
ended signals which are measured between the signal and ground, differential signals measure the 
differential (difference) between the two wires.  The operational theory is that any interference would 
affect both wires equally and since they are opposite polarity, that interference would cancel itself out.  
Far more reliable and having faster available speeds and limited need for shielding. More expensive 
and dedicated chips are needed to convert to and from the differential condition.  

 

Summary of Contents for 4th Axis Mill/Turn Motor Control System

Page 1: ...High Speed DSS Additional Serial Port optional Smooth RPM Ramping On Screen Parameter Entry Separate External Power Matched Interface Board 400khz Differential Signals Integrated Swapaxis function Di...

Page 2: ...ler to combo board 19 Connect wires to Your Servo Drive 19 Connect wires to Your Break Out Board 19 A Axis STEP color choice and Pin number choice by User 19 A Axis DIRection 19 Connect wires to a 5 V...

Page 3: ...B 26 Listing of Provided Macros 26 Addendum C 27 Definitions 27 CNC Terminology 27 Computer Terminology 27 InTurn Terminology 28 MACH Terminology 29 Servo Motor Terminology 30 Signals and Hardware Ter...

Page 4: ...very significant achievement to bring some of those capabilities to an existing benchtop of full size CNC mill for under US 5 000 Mill Turn requires the 4th axis to have the capability to spin continu...

Page 5: ...d selecting the InTurn profile 2 Create a shortcut that starts Mach3 while automatically using the InTurn profile To create a Shortcut follow these steps A Using a RIGHT click and hold drag the file C...

Page 6: ...that appear after unzipping the file In the end you need to have New macros from InTurn_Macros into the directory Mach3 macros InTurn Note Mach has a special macro named HiddenScript m1s which contai...

Page 7: ...simple things to make a difference and every little bit really does count Stella McCartney Screen Bitmaps from InTurn_Bitmaps into Mach3 Bitmaps MillBitmaps Note after copying the files into the above...

Page 8: ...may be different than shown Windows will find and install the drivers then be happy with the new USB device To determine which COM number the driver created use the following steps Make sure MACH3 is...

Page 9: ...tor Choose Brain Control from the drop down list Find InTurn4thAxis date brn on that list and click on it to highlight it If that name does not show up on the list the file is probably in the wrong pl...

Page 10: ...Configuration screen accessed from the Config drop down on the main MACH screen Add M4444 to the end of whatever is in the Initialization String Note Mach will only run one M code in this String so i...

Page 11: ...and that will only happen if the correct sequence is followed in the startup In the explanation below COM8 is used as an example for clarity but remember that your number may be different It is impor...

Page 12: ...your system Do not reset them to match this image Those are not associated with the InTurn Controller Note Do not change your Kernel Speed to match the image It is also unrelated to the InTurn Contro...

Page 13: ...ch3 Restart Mach3 Test ModBus Communication with the InTurn Controller With MACH3 closed Power up the InTurn Controller Start Mach3 be sure to use the InTurn Profile Click Function Cfg s and choose Se...

Page 14: ...14...

Page 15: ...ervo Enable for drives with this feature _____ OUTPUT 17 Out High PC Proportional Control industrial drives only _____ OUTPUT 12 Out High TL1 Torque Limit industrial drives only _____ OUTPUT 20 Out Lo...

Page 16: ...Turn capabilities the InTurn brings with it The controller s spindle control macros work with the Controller which in turn controls MACH in order to coordinate the movement of the cutting tools with t...

Page 17: ...17...

Page 18: ...ght when the shutter hole passes the sensor Note there are two types of sensors Those intended for more than 5V operation feature a Solid State Relay on the switched side This is a small black 6 pin c...

Page 19: ...DIR should be in a separate shielded cable This is especially important with 24V industrial drive electronics NOTE Operation of the high power 24V signals in the same cable as differential signals wil...

Page 20: ...r supply These are the red and the black wire next to it You can take power from pins on your BOB if the BOB can supply at least 150mA You can use a separate filtered and regulated 5Volt DC supply In...

Page 21: ...by additional gearing in back of the head For the 4th axis this is the extra belt and idler setup If your 4th axis does not have the double reduction setup enter the Main ration again here Drive Mult...

Page 22: ...ettings if you click on the SEND to InTurn checkbox Note New releases are provided in the same type of Distribution Packs as the original that you have installed using this manual The only difference...

Page 23: ...ting tool into a workpiece that has not reached its target speed As of version 32 of the firmware the user supplied operating parameters max RPM encoder res etc are collected on screen by a comprehens...

Page 24: ...will begin to turn slowly if the step signal is connected to the drive during this test Turning the Spindle switch OFF or leaving E stop mode will stop the spindle immediately and normal operation wil...

Page 25: ...25...

Page 26: ...indle M4010 Select LATHE Mode M4011 Select INDEX mode M4013 Select SetSpeed Mode M4014 Select AutoSpeed Mode M4015 Spindle OFF M4019 SET follow Axis to Y M4020 SET follow Axis to Z M4444 Initializatio...

Page 27: ...ogy Computer Terminology Configure A potentially scary term that actually describes something every single person does every day Configuring a machine is the simply act of entering information telling...

Page 28: ...signals ModBus only defines the language not the method by which is it transmitted This is an important distinction to remember See M Code under CNC Terminology Further description under Signals and H...

Page 29: ...nnected to pins A purpose of configuration is to tell MACH which pin is used for each signal Occasionally a signal may be needed that does not come in over a wire but is instead emulated by some inter...

Page 30: ...puter requires an Analog to Digital converter or A D for short Analog Signals Like a digital signal analog represents the values using voltage but unlike digital where you only have high and low analo...

Page 31: ...also uses the Term INPUT xx and OUTPUT xx as the names for additional signals When referring to a physical pin or a numbered physical terminal the words input and output refer to the DIRECTION that th...

Page 32: ...st personal computer Because all manufacturers followed that standard any parallel port printer can be simply plugged into any parallel port sometimes mistakenly called a printer port Single Ended Sig...

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