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PMDX-125 User`s Manual, Revision 0.4

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1. Relay K1 is controlled s determined by DIP Switch Config 7 see section 3 3 N o label Relay K 1 is disabl d cah install the jumper sideways on the center pin Table A Jumper JP1 Settings Relay K1 Control Pins Label Eupen Pin 1 Relay K2 is controlled from parallel port 1 pin 14 multimode Relay K2 is Controlled as determined by DIP Switch Config 8 see section 3 3 N o label Relay K2 is disabled can install the jumper sideways on the center pin Table 5 Jumper JP2 Settings Relay K2 Control Pins Label Eugen 1 2 On 5V is connected to J16 and J17 pins 26 Use this setting if you want to power a SmoothStepper from the PMDX 125 s power supply USE THIS SETTING ONLY IF YOU ARE POWERING A SMOOTHSTEPPER FROM THE PMDX 125 NOTE You must change the SmoothStepper s power supply jumpers in order to have it powered by the PMDX 125 Remove any jumper on the SmoothStepper JP4 this disconnects both the USB power and the External 5V Then install a jumper on one or both of the two pin jumpers next to the 26 pin Port 1 and Port 2 connectors Please refer to the SmoothStepper User s Manual for more information You cannot use this jumper to provide power to the PMDX 125 from the SmoothStepper The PMDX 125 must be powered from the AC mains 2 3 Off Nothing is connected to J16 and J17 pin 26 If a SmoothStepper is connected to the PMDX 125 the SmoothStepper must be powered from its
2. 2 pin 16 or expanded mode bit stream 5 DI Outputfrom parallel port 2 pin 17 or expanded mode bit stream BL Bond Ground referenced to the ground on the PC parallel port connectors Table 14 Secondary Control Output Connector Pin Out J5 10 3 Primary Control Output Connector J6 Pin Number Label Description S 16 O utput from parallel port 1 pin 16 4 6 PCgnd Ground referenced to the ground on the PC parallel port connectors Table 15 Primary Control Output Connector Pin Out J6 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 21 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 10 4 External LED Connector J7 Pin Number Label Description Cd PC 12V Unregulated 12V power supply referenced to the PC gnd on pin 6 or v raw On newer boards this will be called v raw 2 CPOK Connection for external charge pump OK LED on newer boards this or O E will be called O E for outputs enabled Connection for external step activity LED 4 EStop Connection for external E Stop LED Connection for external Power On 6 PCgnd Ground referenced to the ground on the PC parallel port connectors Table 16 Primary Control Output Connector Pin O ut J7 10 5 AC Power Connector J8 WARNING Set
3. Support page for the downloads page Please refer to the plug in documentation for information on how to configure Mach3 to access the additional input and output signals Use of Expanded UO Mode with EMC requires an EMC HAL configuration l that supports Expanded UO Mode l 5 3 2 Expanded Output Mode Expanded O utput Mode provides the additional 4 output signals and 2 relay control signals that Expanded UO Mode provides without the multiplexed input signals It is not intended for use with dual parallel ports or with a SmoothStepper 12 full speed output signals on J1 J2 J3 J4 and J6 pin 17 must be the charge pump signal 4 slow update rate signals on J5 see note above about update rate 2 relay control signals with slow update rate 1 E Stop input signal on parallel port pin 10 4 input signals on parallel port pins 11 12 13 and 15 Use of Expanded O utput Mode withMach3 requires the PMD X 125 Mach plug in which may be downloaded fronvour web gie at http www pmdx com see the Support page for the downloads page Please refer to the plug in documentation for information on how to cohfigure Macha3 to access the additional output signals Use of Expanded O utput Modes with EMC requires an EMC HAL configuration that supports Expanded Output Mode 5 4 Test Modes The PMDX 125 provides a method for stand alone motor testing These test mode generate internal step and direction signals with
4. X 132 as well as Rutex Hobby CNC and other products that expect the step signals on the odd numbered pins and the direction signals on the even numbered pins The Alternate pin out is compatible with X ylotex Mechatronics and other products that expect the step signals on the even numbered pins and the direction signals on the odd numbered pins NOTE Youmust conform to one of the two pin out configurations shown in Table 7 below in order to be able the use the PMDX 125 s built in test function If you do not need the test functions any pin out may be used for step and direction PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 13 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C Confit Step D Connector ER r GE J19 GE J19 19 19 Closed Pin 9 Pin 8 n also J Closed Open Open O pen O pen J1 also 2 foe leew oo fos ECS Te ENS feo Le Table 7 Test Mode Step and Direction Pin Out Mapping 5 5 Pulse Stretch Mode Pulse stretch mode is designed for use with a sensorthat ma y generate a pulse that is too narrow to be guaranteed to be seen by the CN C software For example with Mach running with a 25 KHz kernel rate and the PMD X 125 operating in Evpanded HO M ode the pulse from a spindle sensor must be at least 80 microseconds wide Depending on The spindle sensor des
5. sensors e 5V logic signals e 24V PLC signals PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 14 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C These devices can act as limit switches home indicators or other status information The PMDX 125 s inputs should be connected to the adjacent GN D terminal left floating or driven from ato 5V to 24V source Mechanical switches can be wired directly between the input pins on J11 or J12 and adjacent GND terminals N ote that the examples below show the signals connected to a particular input pin but the inputs may be connected to any of the input pins on the two connectors The sensor switch or input circuit must be capable of sinking 6 mA when pulling or driving the input signal to ground There is an LED next to each input terminal that lights when the input is connected to GND or driven to alogic low level WARNING The PMDX 125 s inputs are optically isolated from the PC side ground The terminals on J11 and J12 marked GN D are NOT the same ground as any other connector on the board Connecting any GN D terminal on connectors J11 or J12 to the PCgnd terminal on another connector will defeat this isolation Normally Closed Switches The left hand drawing in Figure 1 shows an example of hormally closed mechanical switches The switches are wired in
6. signal on parallel port 1 pin 16 Please l refer to the PMD X 125 plug in documentation for more information on this signal WARNING The corresponding relay jumper JP1 for relay K1 and JP2 for relay K2 must be set to multimode in order for the expanded relay functionality to be available 5 3 1 Expanded UO Mode Expanded I O Mode provides the maximum functionality from a single parallel port It is not intended for use with dual parallel ports or with a SmoothStepper In Expanded UO mode using the Mach PMD X 125 plug in the PMD X 125 provides the following signals via parallel port 1 e 12 full speed output signals on J1 J2 J3 J4 and J6 pin 17 must be the charge pump signal and pin 16 must be the bit stream data signal see the plug in documentation for more information e 4 slow update rate signals on J5 see note above about update rate e 2 relay control signals with slow update rate e 1 E Stop input signal on parallel port pin 10 e 8 input signals from J11 and J12 multiplexed onto parallel port pins 11 12 13 and 15 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 11 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C NOTE Use of Expanded UO Mode with Mach3 requires the PMD X 125 Mach3 plug in which may be downloaded from our web site at http www pmdx com see the
7. when driven by approx 6 mA 10 0 Connector Pin out Summary The PMDX 125 contains several connectors as listed in Table 9 below Refer to the following tables for details on the pin outs for each connector For all connectors pin 1 is the pin closest to the reference designator i e J1 pin 1 is the pin closest to the J1 text on the circuit board In addition all connectors have square pads on pin 1 look on the bottom of the circuit board J1 J2 J3 J4 Parallel port 1 pins 2 through 9 usually used for step and direction J5 Secondary Control O utputs parallel port 2 pins 1 14 16 and 17 Primary Control O utputs parallel port 1 pins 1 14 16 and 17 External LED signals NNN External LED signals Parallel port 1 25 pin B connector 16 Parallel port 1 26 pin ribbon cable connector Table 9 Summary of PMDX 125 Connectors 10 1 Data Bus Connectors J1 J2 J3 and J4 The data bus connectors are labeled to denote which pin on parallel port 1 that is associated with each connector pin Each connector also provides a PC referenced 5V and GND signal either of which may be used as the common signal for your motor driver s step and direction inputs Pin Number Label Description Cid PC ASV 5V power supply referenced to the PC opd on pin 4 a ee ee Buffered signal from pin 8 of the parallel port 1 3 9 Buffered signal from pin 9 of the parallel port 1 4 PC nd Ground referen
8. 0 Test Your Configuration in Normal Mode A Nu ua aere 7 211 Test Your Configuration with the C harga PURPN A N O nasisira 7 242 Test Your Configuration in Expanded Mod amp SN NN kernstesssessssteesseesssstesseesssseesseessssueeseesssnsisseesssnieeseeessnaeset 7 3 0 Lc e E nl 7 31 O perational Mode SWItCheS see 8 3 2 Auxiliary MOJE SWItCNES E E 8 33 Relay Mode SWitthes NN escea n vag 8 A0 Jumper Settings e 9 LrUMEEeJ 18 0 E 10 51 e ETRURIAE I 52 Normal Modes 5 2 1 Normal Mode without C harge Pump 5 22 Normal Mode with Charge Pump 53 Expanded Modes n anaa 5 3 1 Expanded UO Mode 5 3 2 Expanded O utput Mode nsss 54 Test Modes 5 5 Pulse Stretch MOdB AN 60 Input 14 6 1 General RO pteg IDEA 14 6 2 E Stop Input 6 3 Fault Input 6 4 Gecko Error Input Le ie ET E E 17 71 General Purpose CHIESA 17 7 2 Relay Contact O utputs 73 Restart Out ute eege 8 0 Charge PUMP 90 LEDS 19 9 1 External LED C OMM GtOr UL aerer 19 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 2 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PC B 476C Document Revision 0 4 Serial N umber
9. BD mA PC 12 Supply on connector J7 Unregulated 12V Maximum current TBD mA 5V Supply on connectors J11 and J12 Regulated 5V Maximum current TBD mA 12V Supply on connectors J11 and J12 Unregulated 12V Maximum current TBD mA Inputs including E Stop and Fault Low must be able to sink Gm ales than 0 8V High must be open circ it or greater than 3 0 volts and no greater than 25VD C Response time i 20 s O utputs High at least 3 8V driving IGMA load Low at most 0 8V sinking 16mA Maximumvdata rate 500 KHz Relay K 1 Contact Ratings 30 amperes at 120 VAC 30 amperes at 240 VAC 10 amperes at 24 VDC Relay K2 Contact Ratings 10 amperes at 120 VAC 10 amperes at 240 VAC 5 amperes at 24 VDC Charge Pump Min Frequency 150 Hz minimum square wave appearing on parallel port 1 J15 or J16 pin 17 Environmental Temperature 0 to 455 C Relative H umidity 20 to 80 relative humidity non condensing PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 27 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C Appendix A Warranty Statement Practical Micro D esign Inc PMD warrants that this hardware product is in good working condition according to its specifications at the time of shipment for a period of 90 days from the date it was shipped from PMD Should the product in PMD s opinion
10. J15 note 1 note 2 PMDX 125 Signal Comment Relay control and connector J6 See sections 3 3 and 4 0 for relay information O utput signals to connectofs JT Normally used for step and direction signals 6 6 through JA andJ19 but may be used as generic outputs H high wh S Driven high when E Stop or Fault is active or E Stop input to PC on Gecko Error Status Input from J12 Eh 12 12 Status Input from J12 Status Input from J12 WER Relay control and connector J6 See sections 3 3 and 4 0 for relay information 15 15 Status Input from J12 17 Control Output to connector J6 Can act as charge pump 18 25 18 25 PC Ground Table 23 PC Parallel Port Connectors J15 and J16 6 16 Control Output to connector J6 7 NOTE 1 The PC Pin number column lists the pin numbers as they would appear on the PC s 25 pin D connector when using a standard printer cable NOTE 2 J15 isthe 25 pin D connector on the PMDX 125 J16 not shows in this table is the 26 pin ribbon cable header on the PMDX 125 The pin out on J16 matches the industry standard for D B 25 signals on a ribbon cable PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 24 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 10 12 Parallel Port 2 Connector J17 The PMDX 125 provides a 26 pin ribbon cable header for the parallel po
11. PMDX 125 Multi Mode Break O ut Board User s Manual m LA PMDX YT ues e lIPMDX 125 xm timode Bregkovt PRELIMINARY Document Revision 0 4 Date 11 January 2010 PCB Revision PCB 476C Revision 1 through 4 Serial Numbers All built on PC B 476C PMDX W eb http www pmdx com 9704 D Gunston Cove Rd Phone 1 703 372 2975 Lorton VA 22079 2366 USA FAX 1 703 372 2977 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 1 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PC B 476C Document Revision 0 4 Serial Numbers All built on PC B 476C DEO o UE el ET 4 11 Important Safety Information 4 12 UR leur e fretus oae iaa n n a n D D D D T He tt 4 13 Trademarks aodio oic ded An 4 14 Rer c M 5 1 5 Updates to ETHIC 5 20 Quick Start GUC pc HT EET 6 2 1 Select A ee EE ua Noo Ne uere rene eere ore 6 2 2 Initial Power O Ee E ME 6 2 3 Connecting Motor D FIVers sasatoanana pue e ER RECETTE RENE 6 24 est Motor Cer De ccce rette e RN EA 6 2 5 Connect E Stop SWiECh G5 enee Ed qe en rentttscktas ttt tt tok aa tattoo ERES 6 2 6 Connecting Limit amp Home Switches and O ther Inputs s A E DE N DG Mann 6 2 7 Connecting C MO S 5V O UEpUts eeh 6 2 8 Connecting Relay O tputs 3 3 HE a NON N N Mechel 7 29 Connecting to a PC or SmoothStepper Au an E eene 7 2 1
12. USB connector or an external power supply It will NOT be powered from the PMD X 125 Table 6 Jumper JP3 Settings SmoothStepper Power PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 9 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 5 0 Operation Modes 5 1 Changing Modes The PMDX 125 changes operating modes only upon power up or when the Test push button is pressed and released If the Status LED is on or flashing indicating some error or fault condition then pressing the push button attempts to clear the error rather than changing modes In order to change modes the Status LED must be off unless you are in Test mode or you can power the board off and back on 5 2 Normal Modes In either of the two normal modes the PMDX 125 may be connected to one or two parallel ports or to a SmoothStepper The PMDX 125 provides buffering but not optical isolation for all outputs signals and optical isolation for all input signals Motor drivers and output devices often provide their own built in isolation There are screw terminal connectors for all signals on parallel port amp T and for the control outputs pins 1 14 16 and 17 and status inputs pins 11 12 13 and 15 for parallel port 2 PMDX sells option boards that can provide optically isolated inputs or outputs for the data bs on parallel port 2
13. When using test mode to generate step and direction signals on pins 1 and 14 make sure to set jumpers JP1 and JP2 to disable relays K1 and K2 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 12 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C Pressing and holding the Test push button when no fault is indicated turns the Status LED on solid and causes the PMD X 125 to generate the following step profile Brief pause approx 1 2 second 5 steps at a rate of 2 steps per second Ramp up to 400 steps per second and maintain that rate until the push button is released D Ramp down from 400 steps per second to 25 steps per second then stop 91 LA Toggle the test mode direction so that the next push button press will move the motor in the opposite direction except as described below If the push button is released during step 1 of the test profile no step pulseNS generated but the direction signal is toggled If the push button is released during step 3 ofthe test profile it immediately ramps down from the current step frequency and then stops i e it does notswaituntil the ramp has reached it maximum frequency before ramping down and stopping N ote that if the push button is pressed while a fault is indicated the push button serves to attempt to clea
14. able or disable all of the PM DX 125 s output signals i e all PMDX 125 output signals are disabled as long as either the E Stop or Fault signals are active 6 3 Fault Input The Fault input provides an interface for external fault detection circuits his signal is active low meaning that a logic low or ground indicates a fault condition and a logic high or floating means all isOK The Fault input can be connected to an external wired or configuration of open collector status signals or mechanical switches to ground switch closed means fault Alhof th external fault signals should be tied together and connected to the PMD X 125 s Faultinput provided that the fault signals can share the same ground reference the GND terminal on 13 T he Fault input has an internal pull up resistor and may be left unconnected when not used To indicate a fault condition drive this input to ground via either open collector or TTL style drivers or mechanical switches The fault circuit must be capable of sinking 6 mA of current when pulling or diving the Fawltsignal to ground The E Stop and Fault inputs are combined to drive pin10 on the PC s parallel port and to enable or disable all of the PM D X 125 s output Signals ie all PMD X 125 output signals are disabled as long as either the E Stop or Fault sighals are active NOTE The PMDX 125 s Fault signal must be either driven high 5V or allowed to float in order for the ou
15. ced to the ground on the PC parallel port connectors Table 10 Data Bus Connector Pin Out J1 Pin Number Label Description Cid PC 5V 5V power supply referenced to the PC gnd on pin 4 2 6 Buffered signal from pin 6 of the parallel port 1 Buffered signal from pin 7 of the parallel port 1 4 PC od Ground referenced to the ground on the PC parallel port connectors Table 11 Data Bus Connector Pin Out J2 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 20 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C Description Pin Number Label PC 5V 5V power supply referenced to the PC opd on pin 4 2 Buffered signal from pin 4 of the parallel port 1 Buffered signal from pin 5 of the parallel port 1 A PC od Ground referenced to the ground on the PC parallel port connectors Table 12 Data Bus Connector Pin Out J3 Pin Number Label Description Table 13 Data Bus Connector Pin Out JA 10 2 Secondary Control Output Connector J5 Pin Number Label Desripion S Ss PC 5V 5V power supply ref renced to the PC gnd on pin 6 Output from parallel port 2 pin 1 or expanded mode bit stream 3 B Output from parallel port 2 pin 14 or expanded mode bit stream 4 EI Outputfr m parallebport
16. ch3 ArtSoft http www machsupport com SmoothStepper W arp9 Tech Design Inc http www warp9td com PMD X 106 PMD X 107 PMD X 108 PMD X Practical Micro Design Inc http www pmdx com PMDX 125 Manual 04 doc 02009 Practical Micro Design Inc Page 4 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual Document Revision 0 4 1 4 Features The PMDX 125 has the following features e Provides up to 16 outputs and 9 inputs by using dual parallel ports or a single port by using expanded mode drivers e integrates well with SmoothStepper by providing dual parallel ports with ribbon cable connections mounting holes for stacking SmoothStepper onto the PMD X 125 as a daughter board and power to run the SmoothStepper fed via ribbon cables e Supports up to 12 outputs as step and direction signals for up to 6 motor axes using dual printer ports or Smoothstepper e Mach software plug in and EMC sample HAL files provided to support enhanced UO features e Onboard LED indicators on all signals e Terminal strip outputs provided for external LED s showing status of Power Q n E Stop C harge Pump and step signal activity e All status inputs are optically isotated e All parallel port signals are terminzted and filtered to help resist noise problems e All step direction and contra output signals are buffered with 16 mA drivers e Special isolated interface to sense ERR RST signal used by Geckodrive servo
17. ct or d asaresult of any event circumstance action or abuse beyond the control of Practical Micro Design Inc whether such damages be direct indirect consequential special or otherwise and whether such damages are incurred by the person to whom this warranty extends or a third party PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 28 of 28 11 January 2010 All Rights Reserved
18. d via the E Stop switch chain or a direct jumper in order to prevent an E Stop condition which will disable the outputs and relays on the PMDX 125 board Fault input active low ERR Gecko Error Input 4 Restart O utput 6 COM Common terminal for Gecko Error Input and Restart Output Table 22 E Stop Fault Gecko Error and Restart Connector Pin Out J13 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 23 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 10 10 Reserved Connector J14 WARNING DO NOT CONNECT ANYTHING TO J14 While it is an RJ45 connector and looks like a twisted pair Ethernet connections this is NOT an Ethernet interface Plugging this connector into an Ethernet port may damage both the PM DX 125 and the Ethernet port 10 11 Parallel Port 1 Connectors J15 amp J16 The PMDX 125 provides a 25 pin D connector and a 26 pin ribbon cable header for the parallel port 1 The pin out of the 26 pin ribbon cable header J16 matches the industry standard for D B 25 signals on aribbon cable and is not shown in the table below NOTE Some printer cables do not have good signal shielding Sin dditior some cables omit some of the status or control signals such as pin numbers 13 and 14 W e recommend using cables that are listed as IEEE lt 1284 Compliant Pin Numbers PC
19. e the corresponding DIP switch will have no effect on the relay PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 8 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PC B 476C DIP Switch Position Function amp Config 7 Closed Relay K1 controlled via expanded I O data only if the PMDX 125 is in an mode see section 5 3 Otherwise the relay will remain off Relay K1 controlled from option card installed in J8 for example from a PMDX 107 Isolated Speed Control eee 8 C pP Relay K2 controlled via expanded I O data only if the PMDX 125 is in an expanded mode see section 5 3 0 therwise the relay will remain off n pen ees K2 controlled by O utputs Enabled signal The relay is on when PMD X 125 s outputs are enabled and the relay is off when the outputs are disabled This can be used as a machine enable relay Table 3 Relay MultiMode DIP Switch Settings 4 0 Jumper Settings The PMD X 125 contains three jumpers Two of these determine thea operation ofthe two on board relays along with DIP switches Config 7 and Config 8 see section 3 3 he third routes 5V to pin 26 of the two 26 pin ribbon cable connectors J16 and J17 Jhsean be used to provide power to a SmoothStepper board Lo Function Relay K1 is controlled from parallel port 1 pin 1 multimode
20. e for their step and direction inputs NOTE When usindoutputs 5157 1457716 17 A B C or D for step and direction signals connect to the step signal to pins 1 16 A or C in order for the activity monitor to function correctly see Steps LED in section 9 0 2 4 Test Motor Driver Connections Power on the board and use the PMD X 125 s built in test modes to verify that you have the step and direction signals wired correctly between the PMDX 125 and your stepper drivers See section 5 4 for more information on the PMDX 125 s test modes 2 5 Connect E Stop Switch es If your system will use an emergency stop circuit remove the jumper wire from J13 and connect your E Stop circuit to the PMDX 125 on connector J13 from the E Stop terminal to the GND terminal Verify that the red E Stop LED on the PMDX 125 turns on when the E Stop switch is pressed or the E Stop circuit is activated Verify that the LED turns off when the E Stop switch is released or the E Stop circuit is de activated See section 6 2 for more information about the E Stop input 2 06 Connecting Limit amp Home Switches and Other Inputs Connect any limit or home switches spindle sensors etc to the PMD X 125 s input terminals See section 6 0 for more information 2 7 Connecting CMOS 5V Outputs The output signals on connectors J5 and J6 are TTL CMOS level digital outputs i e OV to 5V approximately Connector J6 ha
21. ed Motor drivers and output devices often provide their own built in isolation PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 17 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 7 2 Relay Contact Outputs The PMDX 125 has two on board relays Relay K1 provides connections to its normally open ND set of contacts Relay K1 always has an MO V connected across its terminals see below for information on MO Vs Relay K2 provides connections to both its normally closed N C and normally open contacts as well as an MO V protection terminal see below Depending on DIP switch and jumper settings the relays can be controlled by parallel port 1 pins 1 and 14 for relays K 1 and K2 respectively from the expanded mode bit stream by the O ption Connector J18 or by the outputs enabled signal also called CP OK or charge pump OK See sections 3 0 and 4 0 for more information The connector for relay K2 J10 has a terminal labeled MO V This terminal is connected to the relay s COM terminal through an MO V metal oxide varistor see http en wikipedia org wiki Varistor The MOV helps absorb any inductive voltage spikes that may be generated when opening the relay contacts for example when powering a motor or solenoid like a vacuum pump or coolant valve This in turn helps prevent arcing on the relay co
22. el port pins 2 through 9 and the PC parallel port ground pins 18 through 25 N ote that these pin numbers are the D B 25 equivalent pin numbers and not the actual pin numbers on J19 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 25 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 11 0 Mechanical Specifications lt 5 000 gt ay NS Be 7 850 6 each holes for 6 screw to mount board n d oO 9 E Bo 4 500 38 0 750 4 250 BS oO D Co o Q 0 150 4 850 CO EE lt N 0 000 2 1 0 150 l 0 000 Figure 5 PMDX 125 Dimensions and Mounting Holes WARNING The PMDX 125 should be protected from liquids dirt or chips especially metal chips which can cause shorts coming in contact with the board PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 26 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 12 0 Electrical and Environmental Specifications Main Power 115VAC 110 to 125VAC or 230VAC 220 to 240VAC switch selectable PC 5V Supply on connectors J1 J2 J3 J4 J5 J5 and J6 Regulated 5V Maximum current drawn from all PC 5V pins T
23. ernal pull up resistor so that the default condition is E Stop This also means that the external emergency stop circuit must be capable of sinking at least 6 mA of current when the switch contacts are closed NOTE The E Stop signal must be grounded or driven low in order for the PMDX 125 s outputs to be enabled and for the pin 10 status signal to the PC parallel port to go low If you do not have an E Stop switch or circuit then install a jumper wire between the E Stop terminal and the GN D terminal on connector J13 the board ships with this jumper wire installed The E Stop input should be connected to an external normally closed switch or group of switches all wired in series The external switch es should be wired between the E Stop pin and the ground signal on connector J13 such that the switch contacts open to signal an emergency stop condition PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 16 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C WARNING Do not connect the E Stop circuit to any ground or common signal on the PM DX 125 other than on connector J13 Doing so will defeat the optical isolation provided by the PM DX 125 and possibly damage the l board or your PC s parallel port The E Stop and Fault inputs are combined to drive pin 10 on the PC s parallel port andto en
24. es the configuration and operation of the PMD X 125 Multi Mode Break O ut Board The PMDX 125 provides an interface between a PC and a multi axis step amp direction controlled motor system or other user equipment This document pertains to the following versions of the PMDX 125 Circuit Board Revision PCB 476C marked on the bottom of the board Revision 1 through 4 marked on silk screen block above serial number Serial N umber Range All built on PC B 476C 1 4 Important Safety Information The PMD X 125 is intended for integration by the purchaser into industrial control systems It is solely the purchaser s responsibility to assure that the system is configured in a m nner consistent with applicable safety requirements Practical Micro Design Inc does not Control how this board is integrated into the purchaser s system and cannot be responsible for guaranteeingthe safety of your system The PMDX 125 is not guaranteed to be fail safe The system into which the RMD X 125 is installed should provide fail safe protection and emergency stop capability lt The PMDX 125 contains circuitry that may be connected to dangero s Gites Care must be taken that user cannot come in contact with these voltages An enclosure that allows for modest ventilation but prevents intrusion by operator s hands and foreign objects especially conductive byproducts of machining Operations should be utilized with this board Interlock aa on power circuits should
25. harge Pump see sections 3 1 and 5 2 2 Verify that the CP OK LED turns on when your CNC software is enabled and that it turns off when the CNC software is disabled 2 12 Test Your Configuration in Expanded Mode If you will be using one of the PMDX 125 s expanded modes Expanded UO Mode or Expanded Output Mode download the PMD X 125 Mach3 plug in and documentation Follow the instructions to install and configure the plug in and Mach3 See section 5 3 for more information 3 0 DIP Switch Settings The PMD X 125 contain 8 DIP switches labeled Config 1 through Config 8 A switch is closed when it is depressed or pushed towards the silk screen text Config x The switch is open when it is depressed or pushed towards the side away from the silk screen text also towards the O PEN text on PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 7 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C the DIP switch body These switches along with the two jumpers see section 4 0 determine the operating characteristics of the PMD X 125 as follows 3 1 Operational Mode Switches The O perational Mode switches are read only on power up or when the Test push button is pressed Closed O pen Closed Run in Expanded I O Mode see section 5 3 O pen Closed O pen Do Not Use Table 1 Operational Mode DIP Switch Se
26. ign and spindle speed this may not be possible W ith pulse stretching mode the PMD X 125 extends the trailing edge of the signal to guarantee that the PC or SmoothStepper sees a pulse that is at least 100 microseconds wide Pulse stretch mode operates with th following constraints O perates on the Pin 15 input only Assumes the signal from the sensor is active low Your CNC software must be configured with the pin 15 input as active low Stretches the active low pulse to provide a minimum 100us wide pulse to the PC The active falling edge of the PC signal is aligned with the signal from the sensor The inactive rising edge is delayed going to the PC 6 0 Input Signals 6 1 General Purpose Inputs The PMDX 125 provides eight 8 optically isolated general purpose input signals four on connector J12 parallel port 1 and four on J11 parallel port 2 In Expanded I O M ode all eight of these signals are available on a single parallel port see section 5 3 Internal circuitry on the PMD X 125 pulls these inputs high when there is nothing connected to the input terminal or when a switch circuit is open The PMD X 125 s inputs can be driven by any of the following e Mechanical switches in either normally open or normally closed configurations e Open collector transistor outputs e NPN style sensors such as the PMD X 170 O ptical Interrupter and the PMD X 171 Hall Effect Sensor and many other commercially available
27. ion 4 0 2 10 Test Your Configuration in Normal Mode The PMDX 125 has several different operating modes some of which have additional requirements for proper operation Starting to test your setup withthe PMDX 125 in N ormal mode removes most of those requirements and makes it easier to test the basic set p This allows you to test the wiring to from the PMDX 125 as well as the I O settings iR your motion control software Mach3 EMC etc e Turn all of the DIP switches to the closed p sition this should be the default setting when we ship the board to you and the coffig natio n Heen step 2 2 e Apply power to the PMDX 125 and verify that the CP OK LED is on note that this LED will be named O utputs Enabled on later boards If the CP OK LED is not on all of the PMDX 125 s outputs will be disabled Using your CNC software on the PC e Configure and test the E Stop input on parallel port 1 pin 10 also present on parallel port 2 pin 10 e Configure your motor step and direction signals and using jog commands verify that your CN C software can drive each motor e Test any other output signals coolant pump spindle on off e Test any input signals limit switches spindle sensors etc 2 11 Test Your Configuration with the Charge Pump If you will be using the charge pump feature see section 8 0 then enable that in your CNC software and change the PMD X 125 s DIP switches to Run Normal with C
28. malfunction within the warranty period PMD will repair or replace the product without charge Any replaced parts become the property of PMD This warranty does not apply to the software component of a product or to a product which has been damaged due to accident misuse abuse improper installation usage not in accordance with product specifications and instructions natural or personal disaster or unauthorized alterations repairs or modifications Limitations All warranties for this product expressed or implied are limited to 90 days from the date of purchase and no warranties expressed or implied will apply after that period All warranties for this product expressed or implied shall extend only to the original purchaser The liability of Practical Micro D esign Inc in respect of any defective product will be limited to the repair or replacement of such product Practical Micro Design Inc may use new or equivalent to new replacement parts Practical Micro D esign Inc makes no other representations or warranties as to fitness for purpose merchantability or otherwise in respect of the product No other representations warranties or conditions shall be implied by statute or otherwise In no event shall Practical Micro Design Inc be responsible or liable for any damages arising a from the use of the product b from the loss of use of the product c from the loss of revenue or profit resulting from the use of the produ
29. n this connector O ptically isolated input for parallel port 2 pin 11 or multiplexed onto port 1 pin 11 4 GND Isolated ground reference 5 EI O ptically isolated input for parallel port 2 pin 12 or multiplexed onto port 1 pin 12 6 GND __ Isolated ground reference 7 G O ptically isolated input for parallel p rt 2 pin 13 or multiplexed onto port 1 pin 13 8 GND isolated ground reference H O ptically isolated input for parallel port 2 pin 15 or multiplexed onto port 1 pin 15 Isolated ground reference Table 20 Secondary Status Input Connector Pin Out J11 10 8 Primary Status Input Connector J12 Pin Number Label Desripion 7 O Unbegulated 12V power supply referenced to the GND pins on this or 124 Connector O n newer boards this will be called 12U Regulated 45V power supply referenced to the GND terminals on this connector 4 GND Isolated groundreference o o 6 GND Isolated ground reference 8 GND Isolated ground reference 9 I5 Opticalyisolatedinputforparalle port gou Table 21 Secondary Status Input Connector Pin Out J11 10 9 E Stop Fault Gekco Error and Restart Connector J13 Pin Number Label Description Cd 1 E Stop Emergency Stop input active high i e open to signal E Stop You must provide a groun
30. ntacts and extends the life of the relay T o use the MO V connect your load to the MO V terminal in addition to the N O or N C Terminal A C Power Vacuum MOV Pump N O Coolant Solenoid etc COM N C J10 Figure 4 Sample MO Vand Relay Contacts Connections 7 3 Restart Output The Restart output is a pair of solid state relay contacts that are closed for approximately 1 second every time the PMD X 125 enables its outputs The Restart output can be used to reset the Gecko G320 G 320X G 340 step servo drivers or as a momentary machine enable pulse Please see the application notes section on our web site for example configurations using the Restart output http www pmdx com then look on the Support page 8 0 Charge Pump The charge pump circuit also called a watchdog circuit is designed to disable the PMD X 125 and all motor drivers when the software running on the PC stops working properly The charge pump also keeps the PMDX 125 disabled while the PC starts up i e all outputs are disabled until the PC boots and the CNC controller application software is running It does this by monitoring pin 17 on the first PC parallel port W hen this signal is toggling between high and low the charge pump is OK W hen pin 17 stops toggling the charge pump is not OK The DIP Switch mode settings determine whether the output from the charge pump is used to enable and disable the PMD X 125 outp
31. or when the PMD X 125 is in Test mode see section 5 4 The E Stop LED and E Stop signal to the PC will also be asserted for approximately 1 second when the PMDX 125 detects a Gecko Error signal see section 6 4 Relay LEDs Each relay has an LED associated with it This LED is on when the relay is energized and off when the relay is de energized Input LEDs Each input signal except E Stop Fault and Gecko Error have an LED adjacent to the connector terminal The LED is on then the input is being pulled low to ground and is off when the input is open or pulled to a voltage above TBD volts Output LEDs Each output signal has an LED adjacent to the connector terminal The LED is on when the output is driven to a logic 1 5V The LED is off when the output is driven low 0V 9 1 External LED Connector J7 Connector J7 provides a Charge Pump OK really outputs enabled Step Activity EStop and Power signals that can be connected to external LEDs for remote status indicators These signals have PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 19 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C current limiting resistors so all that is needed is to connect an LED from the signal to the GN D pin on connector J7 The LED should be a high efficiency model that can generate sufficient light
32. out needing a PC connected The step pulses are generated by pressing the momentary contact push button switch SW 2 labeled Test The test mode will also operate when the PMDX 125 connected to a PC If a PC is connected to the PMDX 125 while it is in test mode the PMDX 125 will ignore all incoming signals from the PC including the charge pump for as long as test mode is active W hile in test mode all PMD X 125 output signals are forced to a low zero volts and all relays are de energized except for the two signals that are being driven as step and direction All inputs are passed through the PMDX to the PC but they are ignored by the PMDX 125 except for the E Stop Fault and Gecko Error signals which will disable the test mode step and direction outputs as long as they are asserted The PMDX 125 asserts the E Stop signal to the PC as long as it is in Test mode T his tells the PC that it cannot or should not attempt to control any signals through the PMD X 125 Test mode only controls the current step and direction pins If your machine requires the on board relays or other output signals to be functional while a motor is moving then you will need to temporarily re wire your machine to manually control those functions For example if you use relay K2 to control power to your stepper motor drivers you will need to re wire power to them so that they will be powered on when the PMDX 125 is in test mode WARNING
33. products that can sense faults and also reset and enable Geckodrive servo products from the computer e E Stop Fault ERR RST and C harge Pump timeouts turn off all outputs without assistance from host software e Provides one 30 ampere electromechanical relay useful for spindle control e Provides one 10 ampere electromechanical relay for auxiliary functions e Relays have MO V arc suppressors for longer life of contacts 1 5 Updates to this Manual PCB Revision PCB 476C Serial N umbers All built on PCB 476C Powered directly by AC mains 115 or 230 volts switch selectable Self resetting poly fuse protects mains power input Has option card connector for directly mounting the PMD X 107 or using a ribbon cable to the PMD X 106 spindle speed controllers and also other future products Buffered step and direction available as screw terminal blocks and as a ribbon header for direct connectiomto driver boards with ribbon header inputs for parallel port signals Terminal blocks also provide 5 volts and Groundalong with Step D ir outputs to drivers Screw terminalblocks for isolated status inputs also provide 5 volts and unregulated 12 volts to power sensors such as the PMD X 170 PMDX 171 and NPN proximity sensors Status sensor inputs work with mechanical switches N PN sensors 5 volt logic signals and are 24 volt tolerant to allow use with PLC system signals PN P sensors are not directly supported P
34. r the fault it does not enter test mode or generate step pulses When a fault is indicated it takes two button presses to enter test mode one to dear De faultxand the second to enter test mode Each time test mode is entered the motor direction iS reversed from the previous test mode It is possible to tap the push button to fofce direction vev rsal without holding the switch long enough to generate a step pulse In this manner you Cam achieve successive runs of slow steps in the same direction The Steps LED will flicker whenever a Step pulse is generated by the PMD X 125 in test mode The output signal LED next to connectors Ji through J6 for the step signal may glow dimly when steps are generated depending on the step speedsand polarity WARNING If you press the push button for test mode and nothing happens a fault may have occurred while starting test mode Release the push button and look at the Status LED If there was a fault the LED will remain on or flash to indicate a fault condition If the LED turns off indicating no fault condition then double check the E Stop LED and E Stop wiring The DIP switches provide for two different step and direction pin outs while in test mode PMDX and Alternate These two pin outs are shown in the table below Note that the pin outs only differ for the first four pin combinations pins 2 to 9 PMDX pin out is compatible with PMDX drivers and motherboards such as the PMD
35. remove power when the enclosure is opened Automated machine tools into which the PMD X125 may be integrated can cause injury Precautions should be taken to assure that Oper dor ae trained4f their proper operation and safety procedures and that they are protected from TAMER pantsthat may be under remote control and may move unexpectedly This product may not be used in life support or other critical safety applications 1 2 Warranty Summary The PMD X 125 is warranted against failure due to defective parts or workmanship for 90 days from the date of sale Refer to Appendix A for complete warranty details If you have an item requiring service please see the support page on the PMD X web site http www pmdx com for return instructions Do not return the board to PMDX without contacting us first The purchaser must pay shipping to return the unit to PMDX For customers in the USA we will ship the repaired unit back to you via USPS Priority Mail at our expense For international customers we request that you pay for the return shipping Repairs are normally completed within 10 business days See Appendix A for our complete warranty details 1 3 Trademarks The following product names used in this manual are the trademark tradename or registered mark of the respective companies Product Names Company EMC Linux CNC http www linuxcnc org G203V G320X and Geckodrive Geckodrive Inc http www geckodrive com Ma
36. rt 1 pin 17 see section 8 0 for more information The PMDX 125 powers up with its outputs disabled The outputs are not enabled until a valid charge pump signal is detected and the outputs are disabled as Soon as the charge pump signal is no longer valid N ote that the E Stop Fault and Gecko Error inputs can also disable the outputs at any time In order to use this mode your motion control software must be able to generate a suitable signal see section 12 0 Both Mach3 and EMC have this capability 5 3 Expanded Modes A normal PC parallel port allows for 12 output signals and 5 input signals W ith most breakout boards if you need more inputs or outputs you must add a second parallel port to your PC The PMDX 125 s expanded modes allow you to access more input and output signals while still using a single parallel port PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 10 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C Some example uses of expanded modes include e Allows use of both relays and still have pins 1 and 14 available as an additional step direction pair or as general purpose C MO S outputs e Adds an additional 4 output signals e Allows for 9 input signals instead of the usual 5 The additional output signals are labeled A B C and D on connector J5 These are normally associated with
37. rt 2 gu Numbers J17 SEN 1 note 2 PMDX 125 Signal cor a ontrol O utput to connector J5 A EE ee Ene AnA EAA Can use the PMB X 108 In or PMD X 108 No connection on the PMDX 125 O ut to access these signals DriverNnigh when E Stop or Fault is active Status Input from J11 E Status Input from J11 F Status Input from J11 G 14 2 Control Output to connector J5 B 15 4 Status Input from JH H L6 6 Ic ontrol O utput to connectory5 C 17 8 Control O utput to connector J5 D 18 25 n PC Ground even Table 24 PC Parallel Port Connectors J17 NOTE 1 The PC Pin number column lists the pin numbers as they would appear on the PC s 25 pin D connector when using a standard printer cable NOTE 2 The pin out on J17 matches the industry standard for D B 25 signals on a ribbon cable 10 13 Option Card Connector J18 The option card connector is used for PMDX option boards such as the PMD X 107 The pin out is proprietary 10 14 Alternate Step Direction Connector J19 This connector provides a method to access parallel port 1 pins 2 through 9 other than by using discrete wires on connectors J1 J2 J3 and J4 J19 is a 26 pin ribbon cable header and allows the use of a 26 pin ribbon cable to connect the PMDX 125 to any multi axis motor driver that has a 26 pin header on it The pin out of this connector is the same as J16 except that the only signals that are present are the PC parall
38. s All built on PCB 476C 10 0 Connector Pin out Summary 1 nennen rennen nana nna nana m nana na tua asma snas R aua Suam as R n RASA 20 10 1 Data Bus Connectors J1 J2 J3 and 20 102 Secondary Control Output Connector UR 21 10 3 Primary Gontrol O utput Cohtiector J6 ee 21 104 External LED Connector UI 22 105 AC Power Connector J8 rarena rnin 22 10 6 Relay Contact Connectors J9 and ID 22 10 7 Secondary Status Input Connector ULI EEN 23 10 8 Primary Status Input Connector J12 ineas 23 10 9 E Stop Fault Gekco Error and Restart Connector J13 ENEE 23 10 10 Reserved Connector 14 cite citet tort ccrte tret EE 24 10 11 Parallel Port 1 Connectors J15 amp IEN EEN 24 10 12 zParallel Port s2 C onnectot UE e eege 25 10 13 Option C ard Connector UE geess tete ee tee E Nee ente tte RR i 25 10 14 Alternate Step D irection Connector UI uecht 25 11 0 Mechanical Specifications nee Deae Diaee ansa dman nd eam a aman n atn a nam uana an aS a aS uuu 26 12 0 Electrical and Environmental Specifications 5 3 1 ie sisse esee anam annana ananas 27 Appendix A W qi 28 PMDX 125 Manual 04 doc 11 January 2010 2009 Practical Micro Design Inc Page 3 of 28 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PC B 476C 1 0 Overview This document describ
39. s signals from parallel port 1 pins 1 14 16 and 17 labeled 1 14 16 and 17 Connector J5 has signals from parallel port 2 pins 1 14 16 and 17 labeled A B C and D or these can be driven from the first parallel port using the PMD X 125 s expanded modes see section 5 3 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 6 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PC B 476C 2 8 Connecting Relay Outputs Relay K1 provides a set of normally open contacts on connector J9 Relay K2 provides common normally open and normally closed contacts as well as a MO V protection terminal See section 7 2 for more information 2 9 Connecting to a PC or SmoothStepper Connecting to a PC If you are using one parallel port connect that to either J15 using a D B25 male to male printer cable or J16 using a DB25 to 26 pin Ribbon Header cable If your PC has two parallel ports connect the first port as described above and the second port to connector J17 must use a D B25 to 26 pin Ribbon Header cable Connecting to a SmoothStepper Connect the PMDX 125 to the SmoothStepper using one or two 26 pin female to female ribbon cables Determine how you will provide power to the SmoothStepper Configure jumper JP3 on the PMDX 125 and the SmoothStepper jumpers according to the description inN able 6 in sect
40. see our PMDX 108 model line PMDX also sells isolated relay outputs foruse with the signals on connectors J5 and J6 see our PMD X 104 In either of the two normal modes relay K1 canbe driven from parallel port 1 pin 1 from the option card installed in J8 a PMD X 107 for example or disabled Relay K2 can be driven from parallel port 1 pin 14 by the CP OK called O utputs Enabled onNater boards or disabled See jumpers JP1 and JP2 in section 4 0 and DIP switches Config 19 and Config 8 in Section 3 3 There are two different normal modes as determined by the DIP switch settings see Table 1 in section 3 1 These modes are described incthe followifig s ctio ns 5 2 1 Normal Mode without Charge Pump In Normal Mode without Charge Pump the PMD X 125 s outputs are enabled shortly after power up and remain enabled as long as the E Stop Fault and Gecko Error inputs are inactive WARNING In normal mode there is no protection against spurious movement of your machine when your motion control software is not running Specifically when the PC is going through its start up sequence it may toggle lines on the parallel port Therefore if using normal mode ensure that the PM DX 125 and or your machine is powered down or otherwise disabled until your control software is running 5 2 2 Normal Mode with Charge Pump In Normal Mode with C harge Pump the PMDX 125 looks for a charge pump signal on parallel po
41. series so that the normal cases ground logic low going into pin 12 of the PC s parallel port W hen one or more of the switches apen av pull up eircuit in the PMD X 125 provides a logic high into pin 12 on the PC s parallel port Any number of normally closed mechanical switches may be connected in series to a single input terminal on the PM D X 125 Normally O pen Switches The right hand drawing in Figured showsS antexampl of normally open mechanical switches The switches are wired in parallel o that the normal case is that the pull up circuit in the PMDX 125 provides a logic high going into pin 12 ofthe PC s parallel port W hen one or more of the switches close a logic low appears on pin 12 on the PC s parallel port Any number of normally open switches may be paralleled onto a single input terminal on the PMDX 125 Three normally closed Three normally open switches in series switches in parallel input is active high input is active low WER D 1347 D a D ew D 12 D 12 D GND D GND D j i 13 D 13 D 29 SEKR 45 D CH 15 D ew D ew D 5V D Gett D an D u D J12 or J11 J12 or J11 Figure 1 Sample Mechanical Switch Input Connections NPN Style Sensors O ptical Interrupter or Hall Effect Sensor Figure 2 shows an example of the PMD X 170 slotted optical sensor This example uses the 5V from the PMDX 125 to power the sen
42. sor The sensor s output signal is connected to the PMD X 125 input pin The same connections can be used for the PMDX 171 Hall Effect sensor Figure 3 shows an example using N PN style sensors Many commercial sensors will need to be powered from the unregulated 12V instead of the 5V shown as the alternate power connection in Figure 3 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 15 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C PMDX 170 Slotted Optical Sensor or PMDX 171 Hall Effect Sensor RI D GND D 2 D GND D EE rt US piss ad E ee ee SE D Alternate d 9 GND D Connections 2 E 45V D Aad o 12U D J12 or J11 Figure 2 Sample PMDX 170 PMDX 171 Input Connections NPN Style Sensors suosuas euonippe jeuondo ot i20 Lo EE Ee guerre ti Brown Supply Alternate power supply connection J12 or J11 if sensors can use a 5V supply Shows the typical 3 wire color code and power for sensors that require a 10 to 30V supply Verify your sensor s color code Figure 3 Sample NPN Style Sensor Input Connections 6 2 E Stop Input The E Stop input on connector J13 provides an interface for external emergency stop circuits This signal is active high such that a logic high tells the system to stop and a logic low means all is O K The E Stop input has an int
43. the 2nd parallel port but in expanded modes they are driven by the PMDX 125 from parallel port 1 The additional input signals are labeled E F G and H on connector J11 These are normally associated with the 2nd parallel port but in Expanded I O M ode only they are multiplexed onto parallel port 1 In order to use either of the PMD X 125 s expanded modes with Mach3 you must download and install the PMDX 125 Mach3 plugin To use the expanded modes with EM CSyo must provide an EMC HAL configuration that supports the expanded modes For other controller software contact PMD X for additional information The sections below summarize the feat res and functionality available in each expanded mode For a full explanation please download the plug in doc mentation from the Support gt D ownloads area of our web site NOTE In either expanded mode outputs AX BY X G and D on connector J6 have a slow update rate which makes them unsuitable for use as step and direction signals They can be used for generalcontrohsignals like coolant on off or PLC inputs Due to limitations in the curr nt Mach implementation these outputs are updated once every 1 to 2 seconds See the plug in documentation for more information NOTE Both expanded modes require a charge pump signal on parallel port 1 pin 17 see section 8 0 for more information on the charge pump signal NOTE Both expanded modes require a bit stream
44. the voltage selector switch to the appropriate voltage range BEFORE applying power to the PM DX 125 Pin Description s NO AC voltage NOTE here is no safety ground connection AC voltage required for the PMDX 125 Table 17 Power Supply Connector Pin Out J8 10 6 Relay Contact Connectors J9 and J10 See section 7 2 for more information on using these connectors Pin Number Label Description S O Relay common terminal N ormally O pen relay contact i e open when relay is not energized Table 18 Relay K1 Contact Connector Pin Out J9 Pin Number Label Description l Normally Closed relay contact i e closed when relay is not energized Relay common terminal Normally O pen relay contacts i e open when relay is not energized 4 MOV MOV protection terminal see section 7 2 for more information Table 19 Relay K2 Contact Connector Pin Out J10 PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 22 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 10 7 Secondary Status Input Connector J11 Pin Number Label Description Cd M A Unregulated 12V power supply referenced to the GND pins on this or 12U connector On newer boards this will be called 12U Lies ie ee a Regulated 5V power supply referenced to the GND terminals o
45. to the AC Mains connector J8 Set this switch to the appropriate setting for your AC voltage Then connect your AC power to the PMDX 125 DO NOT APPLY POWER YET 2 2 lnitial Power On Set all DIP switches to closed see section 3 0 to select Run N ormal mode this should be the default setting when we ship the board to you Also verify that the jumper wire is still installed on connector J13 from the E Stop terminal to the GN D terminal Apply power to the board and observe the Power O n E Stop and CP OK LEDs note that the CP OK LED will be named O utputs Enabled on later boards The Power On LED should turn on The E Stop LED should t rn on for approximately 1 second and then turn off After the E Stop LED turns ofthe CPOK a k a O utputs Enabled LED should turn on and stay on NOW POWER OFF THE BOARD 2 3 Connecting Motor Drivers The PMDX 125 can output step and direction signals on any of itS output pins except when in one of the expanded modes see section 5 3 for details This allows tor configurations where more than 4 axis of step and direction are needed Note that some ofthe Control outputs parallel port pins 1 14 16 and 17 may be used for other functions therelfy limiting thelr use as step and direction outputs Each output signal connector has both a ground reference terminal anda 5V terminal This allows the use of drivers that require either a ground common dr V common referenc
46. tputs to be enabled and the E Stop status signal to the PC parallel port on pin 10 to go low signaling O K If you do not have any fault detection circuitry leave the Fault input unconnected 6 4 Gecko Error Input The Gecko step servo drivers models G 320 G320X and G 340 provide an error signal that is both an output from the Gecko driver and a reset into the driver The PMDX 125 provides an input that can connect to this signal and allow the Gecko s error signal to trigger an E Stop condition to the PC W hen the Gecko Error Input signal is active the PMD X 125 will pulse the E Stop signal to the PC for approximately 1 second and then flash an error code on the Status LED The PMDX 125 provides a Restart Output that works in conjunction with the Gecko error input so that the PMDX 125 can automatically pulse the Gecko s error signal to reset the drivers See section 7 3 for more information on the Restart Output Also see the application notes section on our web site for example configurations using the Gecko Error Input and the Restart output http www pmdx com then look on the Support page 7 0 Output Signals 7 1 General Purpose Outputs The PMDX 125 provides up to 16 general purpose outputs 12 from parallel port 1 and 4 from parallel port 2 or all from parallel port 1 in Expanded UO or Expanded Output modes see section 5 3 These outputs are 5V digital CMOS outputs and are buffered but NOT optically isolat
47. ttings 3 2 Auxiliary Mode Switches For all modes except the two test modes D IP switches Cohfig6 through Config4 determine the auxiliary optional functions on the PMDX 125 ntest mode the switches determine on which pair of pins the step and direction signals appear see section 5 4 for more information Config 6 Config5 Config 4N Ifin Run Mode If in Test Mode No auxiliary features Pins 2 and 3 connector J4 Reserved for future use Pins 4 and 5 connector J3 Closed O pen Closed Enable pulse stretching on Pins 6 and 7 connector J2 input pin 15 J12 pin 9 see section 5 5 Pins 8 and 9 connector J1 Pins 1 and 14 connector J6 Pins 16 and 17 connector J6 Pins A and B connector J5 Pins C and D connector J5 Table 2 Test Mode Step Dir Select DIP Switch Settings 3 3 Relay Mode Switches The DIP switches labeled Config 7 and Config 8 determine which signals control the two relays when the relay jumpers are set to multimode see section 4 0 The Relay Mode switches are read continuously Unlike the operational mode switches you do not need to press the Test button to activate the new relay settings WARNING The corresponding relay jumper JP1 for relay K1 and JP2 for relay K2 must be set to multimode in order for these DIP switch settings to have any effect If either of the jumpers is configured to any setting other than multimod
48. ulse stretch circuit to allow a narrow pulse encoder output to be used as lathe index signal Built in test for generating step signals without need of a host computer C harge Pump watchdog function has enhanced timing algorithm to avoid teasing by W indows boot process The 8 data bits of the second parallel port while not connected on the PMDX 125 can be supported with the optional PMD X 108 boards which feature flow through ribbon connections The logic level control output connectors can be connected directly to and power the PMDX 104 board to provide 4 medium current isolated mechanical relay outputs Microprocessor and programmable logic allow for the future addition of more features Check the PMD X web site for revisions or updates to this manual http www pmdx com The latest revision of this manual is available on the PMD X 125 page follow the links from the main page O Ider versions of this manual are available on the User Manual Archives web page Also check on the Support web page for application notes related to the PMDX 125 PMDX 125 Manual 04 doc 11 January 2010 2009 Practical Micro Design Inc All Rights Reserved Page 5 of 28 PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PCB 476C 2 0 Quick Start Guide 2 1 Select AC Mains Voltage The PMDX 125 can be powered from 115 120VAC or 220 230 240VAC There is a voltage selector switch next
49. ure versions of the PMDX 125 Likewise the PMDX 125 does not know the polarity of the step signals so it looks for a rising edge on any of the signals listed above and calls that step activity This has the side effect that changing a direction Signal may cause the Steps LED to flicker Likewise any activity on pin 1 6f parallel ports 1 or 2 will cause the Steps LED to flicker Status LED This LED is off when the PMD X 125 is operating rnormally The LED flashes an error code when the PMDX 125 detects an error condition The flash sequence is a repeating pattern of 3 flashes followed by a variable number of flashes The LED is on solid whenever the Test button is pressed Flash Pattern 3 short pause 1 sh rt repeating Gecko Error input triggered 3 short pause 2 sh rt repeating Error from option connector J18 3 short pause 3 Short repeatir g Expanded mode bit stream error Push button switch pressed Table 8 Status LED Flash Patterns CP OK LED This LED is on When the PMD X 125 s outputs are enabled and is off when the outputs are disabled Note that this LED will be renamed O utputs Enabled on on future revisions of the PMDX 125 E Stop LED The E Stop LED is on when the PMD X 125 is asserting the E Stop signal to the PC on pin 10 of both parallel ports 1 and 2 Note that this is not necessarily an indicator that the E Stop input is open The E Stop LED will be on when the Fault input is grounded
50. uts see section 3 1 This charge pump circuit is designed to work with any software that can toggle pin 17 on the PC parallel port If your software does not support this feature you must use the PMDX 125 in Normal Mode without Charge Pump see section 3 1 See section 12 0 Electrical and Environmental Specifications for information on minimum charge pump frequency NOTE The state of the charge pump signal will not affect the E Stop status that is output on pin 10 to the PC This is to prevent lock up of the software Mach3 requires that the Emergency Stop signal not be asserted before it will start generating the charge pump signal PMDX 125 Manual 04 doc 2009 Practical Micro Design Inc Page 18 of 28 11 January 2010 All Rights Reserved PMDX 125 User s Manual PCB Revision PCB 476C Document Revision 0 4 Serial N umbers All built on PC B 476C 9 0 LEDs Steps LED Flickers when activity is detected on pins that may be used for step signals N ote that the PMDX 125 does not know which pins are being used as step or which are direction It makes the assumption that step signals may be present on parallel port 1 pin 1 and pins 2 through 9 or on parallel port 2 pin 1 Note that while parallel port 2 pins 16 and 17 may be used for step and direction while in normal mode and connected to two parallel ports or a SmoothStepper the Steps LED will not reflect activity on those pins This may be changed in fut

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