BR-AIO-Master_Sectio..
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1. TE Sa ou 2 eae nec x x x x x x gt KARRARRRR RM XA A A ag ag og a a eg ag sts ajata a ajg slets Pw Hd ed Sae cp Oriy heseS rures may Hir seem E Stop Cannot be disabled The Active Low value is important Note THC related signals are on PORT 8 THC ON is the same as ARC OK CandCNC Page 71 THE CHARGE PUMP The Charge Pump CP is an important safety signal in MACH and used by the BladeRunner Itis Koop Alive signal that is waveform approx 12 KHZ and Is generated by MACH and controlled by MACH and the CandCNC drivers for any reason the power to the control system is turned on before the PC is powered up itis possible that as the PC boots tha parallel port can have signal changes during POST that would might cause an output to go active Stopper motors requie very specific signals to move making them inherently immune to random port signals The circulis inthe BladeRunner do not allow any signal to pass to any of he drives unless MACH is fully started and s functional and the operator has brought he system out of reset NO CP NO OUTPUTS HOW IT WORKS MACH is programmed to tum on the CP oniy when MACH is loaded and has control of the PC and tho parallel port and MACH is out of RESET While MACH controis the output signals through internal logic there are hardware functions that act as a second level of safely In the UBOB2. Open the DIAGNOSTICS PAGE for the test 5 To test the inputs use a small screwdriver or metal object to short across a pair of inputs Start with X Home and go down through A home 8 Note on the TABLE I O Card there are small LED s next to each pair When you short across and pair you should see the associated LED turn on That indicates the circuit is complete between the Input on the Table I O and the UBOBIII It also confirms the 25 pin cable is working MAKE SURE THE AUX AC INPUT CORD IS DISCONNECTED FROM THE WALL SOCKET BEFORE YOU RUN ANY TESTS ii DANGER ZONE WHEN AUX AC CORD IS PLUGGED IN INPUTS TO TEST SHORT ACROSS INPUT PAIRS Example of testing X HOME input and indications on the Fasia seur DIAGNOSTICS SCREEN Test each input at a ime and match up Lu the INPUT STATUS The RAW PORT BITS shows the signal AT THE PORT 1 input on the PC as MACH sees it NOTE You cannot test the LIMIT input The AUX 0 is NOT and input for the RII BladeRunner Checking the INPUTS RAW PORT INPUT BITS NORMAL INDICATIONS BIT 4 A omer THC DOWN wi PORT unplugged trom BladeRunner AL Bits 4 8 should BIT 5 Zhome THC UP Wit PORTI une BIT 6 Y home ARC OKAY When MACH is cut of reset then you should see the RAW PORT BIT 7 E STOP EPO BITS SHOWN ABOVE Flashing inputs Indicate activity on that BIT 8 X home LIMITS input E STO
3. Ill based system the CP signal MUST be present not just a logic level on the CP line from the PC or the internal buffers wil be disabled No outputs wil function Without CP no Step signal will be sent to any motor drive No MOTION Without CP no relay will fre Ifyou start MACH and the BladeRunner and you get no motion the fist thing is to check the CP LED on the side of the BladeRunner It detects and tums on the buffer circuits in the BladeRunner TABLE I O CARD LOCATION CHECKING INPUT SIGNALS The following sections detail how to use the hardware interface to use Inputs and Outputs Please review the section on the physical location of the intemal cards and then the section on the Table I O card where Homes and Limits and other Inputs are connected There are sections on using the E STOP either software or hardware or both Setting up HOMES and testing and optional LIMITS Even if you do not plan to use the XY or A homes it is important to at least test each input TABLE I O MODULE LOCATION INSIDE BLADERUNNER ESPII CASE To access Inputs tum off power and remove fron cover Locate Table I O Card and use detialed pages in this setion to make INPUT connections INSIDE TOP VIEW TABLE I O or TABLE 1 0 II CARD This area open fo DTHC or 185 02 Expansion CARDS Universal Breakout Board BLADERUNNER UBOB MODULE DETAILS SETTING and TESTING INPUTS HOMES Setting
4. an optional quad relay card and adds 4 more relays to the outputs Los The X Home shouid light up when you manually activate X Home switch It should be off when the switch is not active If itis reversed Le goes OFF when you activate the switch but stays on otherwise you will need to reverse the polarity of the switch in Ports amp Pins Input Signals We recommend using normally open NO contacts on Homes and Normally Closed NC contacts on the far limits if used The far limits are wired in series external to the Table I O card and itis setup so breaking the string at any point activates a hard limit The hard limits are safety switches located at points on the table to prevent the machine from going past the table travel limits You can have far limits opposite the 0 0 location of the table AND near limits at points where the machine would crash on the other side of the Home switches Limits are optional and on stepper based systems you could elect to have just hard stops since the motors can be stalled without damage A NOTE ABOUT LIMITS on the BladeRunner A stepper motor driver is a torque limited system meaning that the drives limit the amount of torque a stepper motor can apply to a load It does that by limiting the current on each pulse While most AC and DC motors will quickly exceed their ratings if presented with large overload the stepper just stalls starts slipping and
5. inputs from BANK A PORT 1 and then from BANK B PORT 8 Itis an effective way to increase the number of input signals without having to add more physical inputs al the compute Thero aro two things to keep in mind The shared inputs do not work when MACH Is in RESET because all outputs are off and that Includes the special pulse from MACH to switch back and forth between the two BANKS of inputs Tho shared input process is controlled through a special DRIVER plug in for the UBOBIII It has to be Installed and enabled and set correctly for the shared inputs to work versions of MACHS before 3 41 020 DO NOT SUPPORT SHARED INPUTS even if the UBORII driver is loaded driver is oce_UBOB 21 It is added during an auto install from the CD or the BladeRunnerAIO UBOBS install fle The DTHC critical signals of THC ON Arc OK THC UP and THC DOWN and the Z home for the IHS Initial Height Sensing aka are REQUIRED for a Plasma setup Other inputs not required but highly recommended to help in the cut process When you load the BladeRunnerAIO UBOB3 Instal fle earlier In this manual It loads the right Drivers plug ins enables them and sets their parameters It also provides default configuration for all of the INPUTS and OUTPUTS that are common on the BladeRunner The following screens show what the default settings wil look ike There may be differences in settings for Inputs NOT ENABLED Do not worry A disa
6. loses steps Because If this they are safe from overload and will simply stop turning Simple mechanical stops on an axis will keep motors from running to far and no damage to motor or drive is inflicted It sounds bad because the motor vibrates as it attempts to lum but no harm is done The motor will not overheat and the electronics will not see it as an overload unless all 4 motors are stalled at the same time LIMITS are more for decoration than function on a stepper system Some users like to have them If that describes you then by all means install and set them up you will feel much better SPECIAL SECTION Hooking up a remote control for doing Oxy Fuel cutting Disregard this section if you do not have an oxy fuel setup on you table IF YOU DO WANT TO SETUP AN OXY_FUEL SYSTEM PLEASE NOTE THE FOLLOWING 1 Setup and copy your working Plasma Profile using the MACH LOADER covered inPage 34 of this manual 2 Make the changes listed on the next pages to THAT NEW PROFILE 3 You can control the Z UP and DOWN manually during flame cutting using either a set of switches OR the PC keyboard but not BOTH 4 There may be some reconfiguration of outputs needed for oxy fuel if you want automated control of the Oxygen valve and or an automatic striker 5 The THC cannot sense the height of the tip since there is no cutting volts or current to read Typically oxy fuel is done on thicker material and at much slower feedrates than plasma so manua
7. the THC SENSOR PWM module to the module using the 25ft UTP Cable and test the TORCH ON by toggleing the TORCH button on the Diagnostics Screen and watching the TORCH LED on the front of the THC SENSOR PWM module You can test the other two AUX outputs by plugging in the AUX AC cable and plugging in an AC load table lamp 120VAC FAN etc and toggling the individual outputs on and off The AUX outlets can also be turned ON and OFF from G code using an M command What M command is used to turn on off an OUTPUT is a setting in MACh and comes defaulted so a or MO4 turns on OUTPUT Torch on the Plasma Profile Spindle on the Router Profile MOS turns OFF either In a full Spindle Speed System the M04 tums ON the REVERSE RELAY TABLE l O IS Dangerous High Voltage hen AUX AC CORD IS PLUGGED INI SETUP amp TESTING OUTPUTS Checking Outputs Using Diagnostics Page Once you have established that you are getting proper inputs see previous page then you can test the outputs With the BladeRunner connected and powered up and with the DC power on Front panel White Button pushed and GREEN Led is ON then open the Diagnostic tab Progra Run Settings Diagnostics Bring MACH out of RESET Indicator on steady GREEN If you cannot come out of RESET see previous page for ESTOP input being OFF Port2 INPUT INPUT Portt INPUT SERIAL INPUT Charge Pump LED Y
8. the input for something else You must still enable A home in the MACH Profile but map the A home to the same Port and PIN as the Master Home Y in this Typical rectangular table setup 4 motor setup dual drive on the gantry Z axis w t ZHOME x X Y Homes LI 0 axis If you stand here to run the machine then 0 0 is lower left comer from your location X is cross axis short axis Make this Switch Bracket Adustable SETTING and TESTING INPUTS HOMES SETTING HOME SWITCH SEEK DIRECTION Each HOME Swilch in the system has an associated set of parameters to define how itis used To access the Configuration Menu open the CONFIG Homing amp Limits window shown below Most of the defaults wil be correct The HOME NEG setting tells MACH which way to move to find a home switch After you setup your home Switches you should test each one and setup the seek direction 1 Make sure the HOME switch shows up in the Diagnostics Window when you manually activate the switch On the Z home for a plasma setup using the floating Torch holder manually raise the torch by hand and test the switch 2 Do one axis ata time In the Program Run and the Diagnostics Tab you will find REF button next to each axis DRO Move jog each axis out several inches away from it s home switch Click the REF button on the X axis and if it starts to move AWAY from the HOME Switch stop the motion and open the Hom
9. up HOMES Homes are used for establishing a known POSITION Most often to define the TABLE ZERO locations and be able to retum to the same fixed spot Much like the address on your house versus the location of you RV at any given time Ifyou establish TABLE 0 and do all of your cutting in reference to the TABLE ZERO than you can always re establish your cut at anytime even after a power fallure and STOP event that can cause the loss of position TESTING HOMES at the TABLE I O If you have not yet mounted or wired your HOME switches yel itis easy to test to make sure of there operation 1 UNPLUG THE AUXILLARY AC CORD THAT PROVIDES POWER FOR THE AC SOCKETS BEFORE YOU RUN ANY TESTS You vill need to power up the BladeRunner and the DC supply to run the INPUT tests but there is no AC high voltage in the top of the unit UNLESS YOU HAVE THE AUX AC CORD PLUGGED IN 2 Open the BladeRunner up remove the cover and place it gently off to one side leaving the cables to the Front Panel plugged in Expose the TABLE I O in the top of the case as shown in the illustration on page 73 Note the input terminal pairs are side by side in two rows 3 Power up the BladeRunner AIO with and tum on the DC Front Panel You do not need the motors plugged in but if they are it is okay MACH will not come out of RESET if the DC power is off Inputs do not work right if MACH is in RESET 4 Make sure MACH is loaded and the BladeRunner Profile is selected
10. Closed and when pushed or pulled on some types If switch is mounted more than 6 ft from Front Panel card use twisted pair wire 24 to 20 ga wire is okay REMOTE SWITCHES NOT INCLUDED MODE JUMPER ON UACM FRONT PANEL CARD cee j aE Em NS cance jE Lamps amp Switches soe s M m 4 on Backside of card i ud m e E so DH CandCNC SETUP amp TESTING OUTPUTS The BladeRunner AIO uses a unique method to get expanded outputs from just one Parallel Port Using the CandCNC UBOB Ill technolgy the outputs are mapped to a Virtual Port PORT 4 The status of each of those outputs is held in MACH on the PORT The ccc comm plug in then uses three of the parallel port pins 1 14 and 16 to send the data to the UBOB Ill card The data has 8 bits and that represents the status of 8 individual outputs The data is read and updated many times per second so any change in the MACH settings get refreshed in the hardware quickly Unlike most MACH Breakout Boards BoB s the UBOB Ill can control up to 8 independant relay outputs ot Sep Selecion Qupus pt Signals Sionat Enea MPCs Spe S Mi Ons A ied Bone Spal mm ETE iuga che ne Chase Parez Cert tow ETE AANNNARAAAA EE BE BE OC CBE Be Pis 2 8 11 16 2nd 17 gire No cel cin rumb
11. P MUST BE OFF STEADY dark CandCNC Page 76 SETTING and TESTING INPUTS HOMES Home Switch Connections At least one Home Z is required if you are using the BladeRunner Dragon Cut for plasma tables It is recommended you mount and connect up HOMES for the X amp Y but itis not required EXAMPLE of HOME SWITCH MicroSwitch Type switch with roller lever actuator Switch has 250 quik connects and a NO and NC set of contacts Mouting in this case is drilled and tapped AL block with High Strength 3M double sided tape holding it to the table frame Switch trips on bottom of gantry frame but allows it to roll past if needed Mount your HOME Switches they define the X and Y zeros on your table Mount some clips or brackets stops on the cutting surface or edges to let you index a sheet of material in relation to the table zero Even if the STOPS are not exactly at table zero you can deal with the offsets in the CAM layout Having alignment stops on your table let you accurately remove then re load a piece of material Having a defined table 0 0 that can be referenced to makes the recovery of a loss of absolute position easy to recover from We have provided enough inputs to allow for up to 4 Homes The Z home setup is covered on the next page and depends on the type Floating Torch Holder you are using The BladeRunner AIO enclosure is furnished with 2 access holes for routing switch wires into the box f
12. SETTING and TESTING INPUTS HOMES The bulk of MACHS and the Hardware has to do with Inputs and Outputs JO Inthe BladeRunner AIO system VO takes several forms Ultimately an INPUT is signal coming INTO MACHS from an external source as a logi level ether Active High or Active Low MACH is setup to watch certain Ports and Pins points and then using a term called mapping it assigns an INPUT to an ACTION The BladeRunner is unique in that It has double the number of normal inputs to a single Parallel printer LPT port so you have more than the normal 5 Inputs to work with Ts essential when using the THC function in MACH because I alone needs 3 dedicated Iis important to undorstand how the input Port Expansion works and how the mappings are used Tho UBOB Iis the hardware UO part of the BladeRunner It takes outside inputs from the Table VO card to sense physical switches and sets up the sharing of the inputs There are two PORTS defined inthe setup PORT and PORTS PORT 8 is the shared port to PORTI The physical inputs are individual and each one is opto olated and noise The circuit in the UBOB Ill takes all of the individual Inputs and puts them on TWO BANKS of signal each bank E STOP is not shared A specia pulse sent from MACH to tal the hardware which BANK to read This happens thousands of mes per second in a process called multiplexing MACH alternately reads of the
13. a shuld be sed DO NOT MAKE CHANGES TO THE Charge Pump SETTINGS 1 E 16 Pire 2 8 1 16 18 a 7 ae otal girs No prints sho be ust Note the Output SIGNAL name above is mapped to a PORT PIN pair and that defines which physical device is activated by the UBOB output section While there are 8 signals two of them pin 7 and Pin 8 are used with the internally Pin 8 goes though the DTHC module and fires the Torch Relay on a plasma setup in the THC SENSOR PWM module SETUP amp TESTING OUTPUTS OUTPUT Status Cont There are two AUXILLARY OUTPUT Relays on BladeRunner AIO unit They are designed as Output 1 and Output 2 on the Buttons and they toggle ON OFF the AC Outlets A and B on the end of the BladeRunner Box These outlets are wired to the AUX AC line cord on the BladeRunner That cord must be plugged in before the outlets can be used CAUTION there is high voltage 120VAC at the Relays and the Outlets DO NOT OPERATE THE BLADERUNNER WITH THE AUX AC CORD PLUGGED IN AND THE TOP COVER REMOVED NOTE The number of output relays can be expanded by adding in a Quad Relay Expansion card but is seldom used so connections and setup are not covered here On a BladeRunner Dragon Cut with DTH OUTPUT 1 is used for tum on the TORCH Relay located out on the THC SENSOR PWM Operation is covered in depth in the DTHCII User Manual but it is easy to simply plug in
14. bled Input ls ignored by MACH3 Only the pins that are enabled count THE DEFAULT SETUP 1 XYZ amp A Homes are enabled and set to the correct portipin pairs 2 Al LIMITS are disabled see setting up LIMITS for details 3 The THC INPUTS are all enabled and setup even on a Router Profile since those inputs can be re purposed and used for other functions if desired 4 The E STOP cannot be disabled and the Active Low setting is critical RED X default SETTING and TESTING INPUTS HOMES Each axis as and which are the FAR and NEAR LIMITS Each axis has a HOME Each axis has an Enabled Column Do not use Emulated ON Red X for normal setups ruts nis nce HOUSE ase eer sto wanen xe Is u F Li o EE Ek n d EE 1 0 1 1 EE 4 8 15 a 5 7 1 d fF o i 0 1 d o Eo 1 ro 1 f 1 es pn nter dan ascen DO NOT USE THIS BUTTON DESSIN The BladeRunner is unique in that it has two input PORTS 1 amp 8 The pins are shared so that PORT 1 Pin 11 is shared with PORT 8 PIN 11 That offers doubel the normal inputs Tee E D D x D a Li D D x v Am E 4 x D Note A home is enabled by default This may need to be changed if you do not software slave Ato another axis with a Home See the setup of Homes amp Limits section for details mer Tei
15. e amp Limits window and click the Home NEG indicator for that axis Each time you click it will change the setting from a Green Check to a RED X and back Setit to the opposite value and click OK Re Test the REF on the axis you changed and make sure it moves to it s Home Switch 3 Test and set each axis Home that you have When Homing the Z axis on a Plasma setup should move down to the material It will move until t trips the Z home switch then stop IT WILL NOT AUTOMATICALLY PICK UP THE Z above the material Entries are n setup ut ave akn Rome roretn eds ew am amm 28 tame xan cordate sp af moo HOME amp LIMIT WIRING Home and limit switch hook ups Typical comections for Homes and Lis All of the inputs are opto Isolated and map to a specific pin on the parallel pore In realty you use any input for any signal Inputs are not fast enough for Encoder feedback faster than a few pulses second The Inputs use oating ground 12 retum If you need more inputs than the 8 9 with EPO then a PORT 2 card can be hooked to the UBOB and the added Aux and Individual Homes Wired Normall Y x JUMPER EPO to be able to bring MACH out of RESET mesic Saar E 1 8 LE P Ji mond xov CACNC 4 TELE IO ELE ABLE LO eee is for
16. ellow soon as MACH is out of RESET the CP Charge Pump LED on the side of the Bladerunner should come on steady No CP will inhibit ALL outputs including Motor motion signals Nothing will tum on or move Lack of CP shows the parallel port is not working or at the wrong port address in MACH You can also get no CP if you are not running the correct profile or the ccc Ubob Output Toggle and ccc comm plug in s are not active Digize ouput Once you have the you can trip output it will start to flash in the OUTPUT STATUS Plasma systems will have 3 ouputs Torch is output Routers only have two outputs If you want to test the physical outputs on a Blade runner plug an AC device lamp fan elc into the A or B outlet on the end and toggle Output 2 or 3 to turn it on CandCNC Page 92 Torch Toggle
17. end you use fone of the other Pat ate ard hii Sis ius In St Sie ErestaMPG Sei Ml piene ET mte 5o mar Fete asta I ANJA AA ANON XAAA A AA NNNN 002576 8 Dre Snot mte wea CandCNC USING TABLE UO INPUTS FOR REMOTE CONTROL OF UP and DOWN OR Normally Open Momentary Switches used for external contol of UP and DOWN manual for OXY FUEL C DOWN 5 UP Single toogle TN t mope papaa s pma ON ee ES E E E amp romane ono awo zt HE otto on ene 2 aio aia oi RE momo ee ua anc pito wamuxo 3 o E isonbai gun jo uonmuauunoop eu s aed sti pue uj op o uo sed pose aey aM u npuais pue pear nof uondo stg duse ou og ONINYYM SLNANI HO SHOSNAS Tv3LLdO ONISN E STOP and Safety Shutdown In the BladeRunner system there are two forms of E STOP Software MACH3 based E STOP Hardware ESPII UACM Card E STOP SOFTWARE E STOP In MACH there is manditory input for E STOP It is implemented as a normally c
18. erator must inititate a RESET to bring the system back out of Software E Stop DANGER ZONE WHEN AUX AC EET CORD IS i PLUGGED IN Sc coc MUST BE JUMPERED Closed Jumper can be itches in STOP E STOP and Safety Shutdown HARDWARE E STOP HARDWARE E STOP As an option there are USE Dotted wiring for single connections provided for a Normally Closed switch You can wire multiple Hardware E stop that removes current flow from the Switches in series as long as Control relay The Control relay is a small electro they all are Normally Closed mechanical DPDT relay that DIRECTLY provides when inactive Pushing any power to the Main Safely Relay AC INPUT RELAY SWichin the string will OPEN This is a direct shutoff with no semiconductor failure points When the HARDWARE E STOP is tripped the DC power is removed from the motors dynamic braking is applied Load Dump a software e stop is sent via the second set of realy contacts on the Control Relay and the processor that controls all of the power monitor and functions is signaled As long as the Hardware E STOP is OPEN tripped than the AC is removed from the main power supply Barring failure of both the processor and the control software there is no possibilty of motion from the system even if the Hardware E STOP is pulled out of tripped condition Switch must be Normally
19. l height operation is possible Perrin ttre S rr ort p you want o use the manual UP and DOWN inputs on tho Table UO card controling the Z while code running you can use of the swich setups on the previous page into inputs You must then open the COFIG in MACH and select PORTS 7 PINS and te MILL OPTIONS TAB as shown Check the Allow THC UP DOWN Control von if notin THC Mode Checkbox and then APPLY button This sets up MACH so lt will isten to the UP and DOWN commands even when the THC Button is OFF in MACH Also remember that the UP and DOWN Inputs on the Table card aro in parallel with the UP and DOWN signals from the DTHC so MACH will LISTEN TO EITHER The manual UP and DOWN is not normally used with the and tha THC Button enabled You CAN manually control the plasma height if you turn off the THC button and have tho above box checked but it is not recommended The speed at which plasma normally cuts and the small are gaps involved makes the reaction time too slow for manual Z spacing To do the same thing using the keyboard you must setup the INPUT Pins in MACH so THC UP and THC DOWN use EMULATED enabled groen check YOu can then cick on the HOT KEY for each and use the Set Hotkey to select wo keyboard keys Do nol use Keys assigned any other function While you can use both hardware swches and the keyboard hot keys It could get confusing We present both as optons but recomm
20. losed input must be held low to come out of RESET That input is assigned in the BladeRunner AIO to input pin 10 With nothing attached to that pin itis pulled high by the parallal port IF MACH is in RESET all outputs are disabled and no inputs are acted on ignored There is a general misunderstanding about software E stop and if itis safe if the motors are still under power The answer lays in the fact that a stepper based system like the BladeRunner HAS TO HAVE PRECISE TIMED SIGNALS to special drivers to initiate motion It cannot simply run away It is virtually impossible to make a stepper motor turn without the operating software MACH and the electronics providing a valid pulse stream In any failure scenario of the hardware drive malfunction shorted open signals disconnected wires loss of power etc motor rotation is not possible Since the software MUST be in control to issue pulses and the Charge Pump will turn off if the software is frozen in a loop or malfunctioning putting the software into RESET for any reason will stop motion It is actually harder to get motion when you SHOULD have it than to have a stopped system One of the added benefits to a stepper based control is IF IT DOES NOT HAVE VALID STEP COMMANDS IT LOCKS THE MOTORS if power is still on the drives Any consequence of applying DC or a short to motor winding will cease rotation and typically lock the motor The only argument is that the input device f
21. or E STOP might fall but that is no more likely than a failure of a HARDWARE based e stop So a failed drive will not cause a motor to Run Away A failed computer or communications interface will not result in random or uncontrolled motion Coupled with the Charge Pump see section on the Charge Pump function the probability of any motion more than 050 inches is about the same as a computer attached to a printer and no keyboard activity no user firing up and printing a perfect of the Magna Carta from random noise Since it REQUIRES concise contral from the software to create motion the software effectively control it going into RESET and E STOP The user can willfully disable Software E STOP by setting the E STOP input to read the wrong polarity and render the E STOP disabled but a hardware E stop can be disabled as well E STOP and Safety Shutdown SOFTWARE E STOP Implementing a SOFTWARE ONLY E STOP The BladeRunner AIO when properly setup will be put into RESET if the E STOP EPO string is broken 30 O o System is ACTIVE All connections voltages and components MUST be intact and working OR the system will Software E STOP Anytime power is off MACH cannot come out of reset Jumper at EPO can be a string of N switches NC in series that can be wired at any point on the equipment switch or connection in the string that open will trigger an E stop Once closed condition is restored the op
22. or connection to the tabs on the TABLE I O card The holes are filled with two rubber knock out plugs that are easily removed HOME switch wires carry very small amounts of current lt 15ma and low voltage 3 5 volts DC so the wire size is not critical Itis recommended it be stranded for flexibility on moving part of the table and for longer runs twisted pair s are recommended Wire from 24Ga to 18Ga works best The smaller the conductor the more wire pairs will fit through the access holes Use the correct sized Crimp On connector for the size wire you Switch Wire Access Plugs on End of BladeRUnner AIO WHAT IS A FLOATING TORCH HOLDER and WHY DO I NEED ONE PrecisionPlasma Zaxis wi Floating BL The Floating Torch holder is torch holder mounted on a separate slide from the Z axis and allows the torch to move UP and DOWN independent of the Z motion In operation it uses the end of the torch torch tip as a Probe to find the Top of Material Because metal tends to warp and the slats may not be perfectly level the Z zero changes of the material as you move around the table surface The DTHCII wil track the rise and fall of the material as cuts to hold a constant arc gap BUT the absolute value of Z as displayed by the Z DRO is based on the LAST REFERENCE DONE Where it started Each plerce needs to be done at exactly the right height above the material
23. so a method if Initial Height Sensing IHS is needed The Floating Torch holder lets the Torch be the sensing probe for the IHS Itis a mechanical way to do the probe and is more reliable than ohmic or capacitive sensing Using Z homing sequence generated by the G Code from Example of a Z with the Floating Torch Holder for SheetCAM the Z is lowered until the tip doing the IHS for Plasma cutting of the torch touches the metal and the floating mount allows the torch to be pushed UP and that trisp the swtich IZ AXIS FLOATING HEAD ISWITCH Close up of switch connections Use Normally Open Pair Precision Plasma HD Gantry and Z CONNECTED TOZ HOME in BLADERUNNER the TABLE UO Page 78 SETTING and TESTING INPUTS HOMES Using an Optional Salve Side Home Switch Itis advantageous to use a HOME on the slaved axis in this case A There is an input for an A HOME If you set your inputs to have an A HOME in INPUT SIGNALS then slave the A axis the gantry will move towards the switches and stop the molor on the first one to make contact The other axis will continue to run uniti it contacts its swtich If the two sides have gotten out of sync the XY REF wil let the gantry Auto square itself If you make the bracket on side or the other adjustable you and fine tune the position and Square the gantry with the table Ifyou elect NOT to use a slave axis HOME case you need
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