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PMDX-126 Revision C User`s Manual

1. PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 12 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above Pins Label Function of JP6 Input K is a normal input signal and is passed to parallel port 2 pin 10 2 3 M hold Input K is treated as an active high machine hold signal and passed to parallel port 2 pin 10 See section 6 6 for more information Table 10 Jumper JP6 Settings Input K mode 5 0 Operation Modes 5 1 Changing Modes The PMDX 126 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 126 may be connected to one or two parallel ports or to a SmoothStepper The PMDX 126 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 1 and for the control outputs pins 1 14 16 and 17
2. 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 14 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 126 s DIP switches to Run N ormal with Charge Pump see sections 3 1 and 5 2 2 Press the Test button or power the PMDX 126 off and back on to activate the Run Normal with Charge Pump mode Verify that the O utputs Enabled LED turns on when your CNC software is enabled and that it turns off when the CN C software is disabled 2 15 Test Your Configuration with Machine Hold OPTIONAL If you will be using the PMD X 126 s Machine Hold function change jumper JP6 to M Hold Then first install a jumper from the K input to GN D and verify that the K input LED is off and that the PMD X 126 enables its outputs you may have to turn on the charge pump signal if that feature is enabled on the PMD X 126 Disconnect the jumper and verify that the K input LED turns on and that the PMD X 126 disables all of its outputs and the status LED flashes a repeating 2 flash pattern PMDX 126
3. Document Revision 1 9 Serial N umbers 29042 and above Three normally closed Three normally open switches in series switches in parallel input is active high input is active low GND D GND D 5 D 15 D GND D GND D 43 D t3 D GND D GND D Mp D 12 D GND D GND D 1 D 1 D 45V D 45V D 12U D 12U D J12 or J11 J12 or J11 Figure 3 Sample Mechanical Switch Input Connections Optical Interrupter or Hall Effect Sensor Figure 4 shows an example of the PMD X 170 slotted optical sensor This example uses the 5V from the PMD X 126 to power the sensor The sensor s output signal is connected to the PMD X 126 input pin The same connections can be used for the PMD X 171 Hall Effect sensor PMDX 170 Slotted Optical Sensor eno D or PMDX 171 Hall Effect Sensor D GND D D GND D Pod fg 1 Se ee ee ee eee 22 w Q T v D ame g 2 12U D z J12 or J11 Figure 4 Sample PMDX 170 PMDX 171 Input Connections NPN and PNP Style Sensors Figure 5 shows examples using N PN style and PN P style sensors wired in parallel Many commercial NPN sensors will need to be powered from the unregulated 12V instead of the 5V shown as the alternate power connection in Figure 5 PN P sensors must be powered from an external 24VDC supply Note that this parallel configuration will work for a metal target located at the end of travel This configuration will not work with
4. LED Connection for external Power On 6 PCgnd Ground referenced to the ground on the PC parallel port connectors Table 23 Primary Control Output Connector Pin Out J7 11 5 AC Power Connector J8 WARNING Set the voltage selector switch to the appropriate voltage range BEFO RE applying power to the PM DX 126 Pin Description AC voltage NOTE There is no safety ground connection AC voltage required for the PMDX 126 Table 24 Power Supply Connector Pin Out J8 11 6 Relay Contact Connectors J9 and J10 See section 7 2 for more information on using these connectors Pin Number Label Description Cd Relay common terminal N ormally O pen relay contact i e open when relay is not energized Table 25 Relay K1 Contact Connector Pin Out J9 Pin Number Label Description amp amp N ormally Closed relay contact i e closed when relay is not energized Relycommontermind oS Relay common terminal N ormally 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 26 Relay K2 Contact Connector Pin O ut J10 PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 31 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 11 7 Secondary Status Input Co
5. all PMD X 126 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 PMD X to the PC but they are ignored by the PMD X 126 except for the E Stop Fault Error and Machine Hold signals which will disable the test mode step and direction outputs as long as they are asserted Note that there will be no visual indication of this to the user as the PM DX 126 is already asserting the E Stop signal to the PC The PMDX 126 asserts the E Stop signal to the PC as long as it is in Test mode This tells the PC that it cannot or should not attempt to control any signals through the PMD X 126 PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 16 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above Test mode only controls the currently selected 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 126 is in test mode WARNING When using test mo
6. 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 126 detects an Error signal see section 6 5 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 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 3 0 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 Status LED Error Codes W hen the PMD X 126 encounters a problem it uses the Status LED to display an error code The error code is a repeating pattern of 3 flashes a short pause then some number of flashes the error code followed by a longer pause Then the entire sequence repeats Table 15 lists the possible flash patterns Note that a repeating pattern of 2 flashes is not an error but signifies the machine hold function is active see section 6 6 PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 27 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above Table 15
7. 0 Verify jumper JP5 is set for off see section 4 0 Verify jumper JP6 is set for Normal see section 4 0 to disable the Machine Hold function 2 3 Initial Power On Apply power to the board and observe the Power O n E Stop and O utputs Enabled LEDs The Power On LED should turn on The E Stop LED should turn on for approximately 1 second and then turn off After the E Stop LED turns off the O utputs Enabled LED should turn on and stay on then the RST Restart LED will turn on for about 2 seconds and then turn of NOW POWER OFF THE BOARD 2 4 Grounding the PMDX 126 Before connecting the PMDX 126 to the machine decide how and where to connect various grounds on the board See section 10 0 for more information 2 5 Connecting Motor Drivers 2 5 4 Connecting to PMDX 133 or PMDX 134 Before you connect the PMDX 133 or PMDX 134 motherboards to the PMDX 126 follow the steps in the Quick Setup Guide in the PMDX 133 or PMDX 134 User s Manuals O nce you have the motherboards and Geckodrives configured and have tested the motor power then use a 26 pin female to female ribbon cable to connect the PMD X 126 from connector J19 to the PMD X 133 or PMDX 134 If you need to provide 5VDC to the PMD X 133 or PMDX 134 only needed if you are using the motor disable feature AND using G 203V or G213V drivers the change jumper JP4 to On see section 4 0 2 5 2 Discrete Wiring to Motor Drivers The PMDX
8. 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 126 s expanded modes see section 5 3 2 10 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 an MO V protection terminal See section 7 2 for more information Configure jumpers JP1 and JP2 and DIP Switches 7 and 8 according to your desired relay behavior See sections 3 3 and 4 0 for more information on these settings 2 11 Connecting a Touch Probe If you are using a touch probe connect it to the pin 15 input on connector J12 See section 6 2 for more information on connecting a touch probe PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 7 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 2 12 Connecting to a PC or SmoothStepper Connectingto a PC If you are using one parallel port connect that to either J15 using a DB25 male to male printer cable or J16 using a D B25 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 126 to the SmoothStepper using one or tw
9. 126 plug in the PMD X 126 provides the following signals via parallel port 1 Please refer to the PMD X 126 Mach3 plug in documentation for a full description of the available signals e 10 full speed output signals on J1 J2 J3 J4 and J6 pins 1 and 14 only pin 17 must be the charge pump signal and pin 16 is used for expanded data control 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 8 input signals from J11 and J12 multiplexed onto parallel port pins 11 12 13 and 15 Use of Expanded I O M ode with Mach3 requires the PMD X 126 Mach3 plug in which may be downloaded from our web site 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 configure Mach3 to access the additional input and output signals Use of Expanded I O M ode with EMC requires an EMC HAL configuration that supports Expanded I O M ode Expanded I O M ode is not compatible with the PMD X 106 when the PMD X 106 is plugged into the 10 pin connector J18 This mode is compatible with the PMD X 107 In order to use the PMD X 106 with a PMD X 126 in Expanded I O M ode you must connect the PMD X 106 using discrete wires and configure the spindle PW M and direction signals to use pins 1 to 9 or 14 5 3 2 Expanded Output Mode PMDX no longer recommends or sup
10. 126 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 for configurations where more than 4 axis of Step and direction are needed Note that some of the control outputs parallel port pins 1 14 16 and 17 may be used for other functions thereby limiting their use as step and direction outputs Each output signal connector has both a ground reference terminal and a 5V terminal This allows the use of drivers that require either a ground common or 5V common reference for their step and direction inputs PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 6 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above NOTE W hen using outputs 1 14 16 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 Figure 1 below shows some example wiring for various stepper and servo drivers GeckoDrive l G203V G213V DIR De 201X G213X STEP O Step pm cosi cowwoN O PCGnd Typical Leadshine PC 5V Keling or other Dir drivers with 2 wires Obsolete GeckoDrive DIR Ca Dir each for step and Step G201 G210 G202 STEP O lt
11. 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 PNP sensors and PLC outputs must be able to source 6mA at 20 to 24 volts DC There is an LED next to each input terminal that lights when the input is e connected to GND on connectors J11 or J12 e Or driven to GND on connectors J11 or J12 by a switch an NPN sensor or 5V logic signal which has its ground reference connected to a GND terminal on connector J11 or J12 e Or driven toward 24V by a PNP sensor or PLC output with the ground for the sensor or PLC 24V connected to a GN D terminal on connector J11 or J12 The LED is turned off when the input is e un connected e Or floating e or driven to 5V by a switch pull up resistor or 5V logic signal the 5V must be referenced to a GND terminal on connector J11 or J12 W hen the LED is lit the PMD X 126 will drive the corresponding PC parallel port pin low W hen the LED is off the PMD X 126 drives the corresponding PC parallel port pin high NOTE The PMDX 126 s inputs are NOT compatible with 24V totem pole signals where the input is driven to 24V or driven to GN D All 24V signals must be PN P style where the signal is either driven to 24V or left floating WARNING The PMDX 126 s
12. J5 Pin Number Label Description Cd PC 5V 5V power supply referenced to the PCgnd on pin 6 O utput 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 C Output from parallel port 2 pin 16 or expanded mode bit stream 5 D Output from parallel port 2 pin 17 or expanded mode bit stream 6 PCgd Ground referenced to the ground on the PC parallel port connectors Table 21 Uer Control Output Connector Pin Out J5 PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 30 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 11 3 Primary Control Output Connector J6 Pin Number Label Description amp PC 5V 5V power supply referenced to the PC gnd on pin 6 O utput from parallel port 1 pin 1 4 16 jOutpufrompardlelprt amp lpinl 6 PCgd Ground referenced to the ground on the PC parallel port connectors Table 22 Primary Control Output Connector Pin Out J6 11 4 External LED Connector J7 Pin Number Label Description amp V raw Connection for external outputs enabled LED Connection for external step activity LED 4 EStp Connection for external E Stop
13. Manual 19 doc 2012 13 Practical Micro Design Inc Page 8 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above Now connect your machine hold switch normally closed between the K input and GN D W hen the switch is open you should see the PMD X 126 flash a repeating 2 flash pattern on the status LED W hen you close the switch the status LED should turn off and the PMD X 126 s outputs should be enabled See section 6 6 for a complete description of the Machine Hold functionality 2 16 Test Your Configuration in Expanded Mode OPTIONAL If you will be using one of the PMDX 126 s expanded modes Expanded I O M ode Expanded Output M ode or Exapnded Input M ode download the PMD X 126 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 PMDX 126 contains 8 DIP switches labeled Config 1 through Config 8 These switches along with the two jumpers see section 4 0 determine the operating characteristics of the PMDX 126 as shown in the following sections The PMDX 126 may be assembled with either of two styles of DIP switch as shown in Figure 2 below rocker style switches or sliding style switches Rocker style switches require that you push the switch down on one end or the other The switch is o
14. Status LED Flash Patterns NOTE f you encounter an internal error flash code you should power off the PMDX 126 and then power it back on Pressing the Test button is not sufficient If you encounter the internal error again contact PMDX 9 2 External LED Connector J7 Connector J7 provides O utputs Enabled Step Activity E Stop and Power signals that can be connected to external LEDs for remote status indicators These signals have 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 when driven by approx 6 mA See also section 9 3 for additional external LED options These signals can also be used to control many solid state relays 9 3 Remote Expansion Interface J14 The PMDX 126 can be connected to a remote display panel the PMD X 179 via connector J14 to display more information than is available on the External LED Connector see section 9 2 The J14 interface can also support a remote test push button switch For additional details see the PD MX 179 User s Manual available on our web site http www pmdx com WARNING J14IS NOT AN ETHERNET PORT It uses the same connector as Ethernet ports and can use an Ethernet cable to connect to the PM DX 179 remote display board but is not electrically compatible with Ethernet ports Connecting J14 to an Ethernet hub
15. V connected across its terminals see below for information on MOVs Relay K2 provides connections to both its normally closed N C and normally open contacts as well as an MOV 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 K1 and K2 respectively PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 25 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above from the expanded mode bit stream by the O ption Connector J18 or by the outputs enabled signal 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 contacts and extends the life of the relay To use the MOV connect your load to the MO V terminal in addition to the N O or N C terminal A C Power Vacuum MOV D Pump N O D Coolant COM D Solenoid etc N C D J10 Figure 6 Sample MOV and Relay Contacts Co
16. 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 bus on parallel port 2 see our PMD X 108 model line PMDX also sells isolated relay outputs for use with the signals on connectors J5 and J6 see our PMDX 104 In either of the two normal modes relay K1 can be 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 O utputs Enabled signal or disabled See jumpers JP1 and JP2 in section 4 0 and DIP switches Config 7 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 in the following sections 5 2 1 Normal Mode without Charge Pump In Normal Mode without Charge Pump the PMDX 126 s outputs are enabled shortly after power up and remain enabled as long as the E Stop Fault and 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 126 and or your machine is powered down or otherwise disabled until your control software is run
17. circuits of the PMD X 126 and may be in direct contact with metal standoffs without causing any grounding issues The standoffs themselves and the screws used to fasten them must not extend beyond the metal pad on the circuit board where they mount 11 0 Connector Pin out Summary The PMDX 126 contains several connectors as listed in Table 16 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 ofthe circuit board J1 J2 J3 J4 Secondary Control O utputs parallel port 2 pins 1 14 16 and 17 JO O J10 E Stop Fault Error and K inputs and Restart output Remote expansion connector Parallel port 1 25 pin D connector Table 16 Summary of PMDX 126 Connectors 11 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 PMDX 126_Manual_19 doc 2012 13 Practical Micro D esign Inc Page 29 of 39 27 N ovember 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 48
18. except as described below If the push button is released during step 1 of the test profile no step pulse is generated but the direction signal is toggled If the push button is released during step 3 of the test profile it immediately ramps down from the current step frequency and then stops i e it does not wait until the ramp has reached it maximum frequency before ramping down and stopping Note that if the push button is pressed while a fault is indicated the push button serves to attempt to clear the fault it does not enter test mode or generate step pulses W hen a fault is indicated it takes two button presses to enter test mode one to clear the fault and 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 force a direction reversal without holding the switch long enough to generate a step pulse In this manner you can achieve successive runs of slow steps in the same direction 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 5 4 3 Push to Run Push to Stop W hen in this test mode pressing and
19. is de energized when the outputs are disabled the Outputs Enabled LED is off This allows the relay to be used as a machine enable relay No jumper Don tcare Relay K2 is de energized disabled DIP Switch Config 8 has no effect installed on relay K2 Table 4 Relay K2 DIP Switch amp Jumper Settings 4 0 Jumper Settings The PMDX 126 contains four jumpers as described below PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 11 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above Pins Label FunctionofJP pin 1 Relay K1 is controlled from parallel port 1 pin 1 multimode Relay K1 is controlled as determined by DIP Switch Config 7 see section 3 3 No jumper installed Relay K1 is de energized disabled You can also install the jumper sideways on the center pin of the jumper Table 5 Jumper JP1 Settings Relay K1 Control Pins Label FunctionofJP2 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 No jumper installed Relay K2 is de energized disabled You can also install the jumper sideways on the center pin of the jumper Table 6 Jumper JP2 Settings Relay K2 Control PC 45V 5V relative to PC ground is connected
20. or TTL style drivers or mechanical switches The fault circuit must be capable of sinking 6 mA of current when pulling or driving the Fault signal to ground The E Stop and Fault inputs are combined to drive pin 10 on the PC s parallel port and to enable or disable all of the PMD X 126 s output signals i e all PMD X 126 output signals are disabled as long as either the E Stop or Fault signals are active The PMD X 126 s Fault signal must be either driven high 5V or allowed to float in order for the outputs 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 5 External Driver Gecko Error Input Many motor drivers including the Gecko model G 320 G320X and G340 step servo drivers provide an error signal The PMDX 126 provides an isolated input that can connect to this signal and allow the driver s error signal to trigger an E Stop condition to the PC W hen the Error Input signal is active the PMD X 126 will pulse the E Stop signal to the PC for approximately 1 second and then flash an error code on the Status LED See section 6 7 for information on how the PMDX 126 filters the Error input active means that the ERR terminal is driven to at least 4 5V volts relative to the ERR terminal on connector J13 The PMDX 126 provides a Restart Output that works in conjunction w
21. releasing the Test push button when no fault is indicated causes the PMDX 126 to start generating step pulses ramping up to 1 000 steps per second It then continues to generate step pulses at 1 000 steps per second until the Test push button is pressed again O n this 2nd press of the Test push button the PMDX 126 ramps down from 1 000 to approx 25 steps per second and then stops generating step pulses It also toggles the test mode direction so that the next time the push button is pressed the motor will move in the opposite direction This mode can be used to set the adjust trim pot on Gecko stepper drivers The Status LED will turn on solid as long as the push button is pressed The Status LED should turn off as soon as the push button is released If the LED remains on after the push button is released some type of fault was detected Note that if the push button is pressed while a fault is indicated the push button serves to attempt to Clear the fault it does not enter test mode or generate step pulses W hen a fault is indicated it takes two button presses to enter test mode one to clear the fault and 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 force a direction reversal without holding the switch long enough to generate a step pulse In this manner you can achieve successive runs of slow steps in the s
22. there is an option to connect PC 5V to J19 pin 26 See jumper JP4 in section 4 0 for more information numbers Pin Numers pMDX 226Sgnd comment Numbers Pin Numbers PMDX 126 Signal Comment a LLL Jumbo mode port 1 pin 1 3 2 Parallel Port 1 pin 2 Parallel Port 1 pin 3 Usually X axis step and direction 7 4 Parallel Port 1 pin 4 m a T 38 3 Parallel Port 1 pin 5 Usually Y axis step and direction 11 6 parallel Port 1 pin 6 i m Parallel Port 1 pin 7 U sually Z axis step and direction 15 8 Paralel Port 1 pin 8 kn ae Cor 9 1 Parallel Port 1 pin 9 Usually A axis step and direction 1 10 No Connection 210 1 PNNoCometn Special Function Reserved do not connect Special Function Reserved do not connect 14 Parallel Port 2 pin 14 or in Possible 5th axis direction signal Jump mode port 1 pin a a 16 EIS Port 2 pin 16 or in T 6th axis step signal hardware Jumbo mode cloned from clone axis when in Jumbo Mode port 1 pin 3 X axis step E indonesia IN Possible 6th axis direction signal inverted from port 1 pin 2 o s clone axis when in Jumbo inverted X axis direction 10 12 14 16 18 19 20 21 22 D epends on jumper JP4 setting see x ww prione PC Fay section 4 0 for more information Table 32 Alternate Step Direction Connector J19 NOTE 1 The pinson J19 are numbered with the odd pins in one row and the even
23. 0 Mechanical Specificatlons rc erm tee cen pr la rn e vc en e dn 13 0 Electrical and Environmental Specifications sse tnnt tnnt AppendboA Warranty suere ode medion pod en pene bn bete edd e RE PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 3 of 39 27 N ovember 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 1 0 Overview This document describes the configuration and operation of the PMDX 126 Multi Mode Break O ut Board The PMDX 126 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 PMD X 126 Circuit Board Revision PCB 485C marked on the bottom of the board Revision C1 and above marked on silk screen block above serial number Serial N umber Range 29042 and above 1 4 Important Safety Information The PMDX 126 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 manner 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 guaranteeing the safety of your system The PMDX 126 is not guaranteed to be fail safe The system into
24. 1 or 16 will cause the Steps LED to flicker Port 1 Pin 1 Can be a 5th axis with pin 14 as the direction signal Port 1 Pins 2to 9 Usual pins for up to 4 axis X Y Z and A of step and direction Port 2 Pin 1 Can be a 5th or 6th axis with port 2 pin 14 as the direction signal when using 2 parallel ports into the PMDX 126 Port 2 Pin 16 e For boards marked as Revision A2 or higher this can be a 5th of 6th axis with port 2 pin 17 as the direction signal when in one of the normal modes and using 2 parallel ports into the PMD X 126 e For boards marked as Revision A1 the Steps LED ignores this signal It may still be used as a step signal as described above it just won t have its activity shown on the Steps LED Table 14 Parallel Port Pins That Affect the Steps LED Status LED This LED is off when the PMD X 126 is operating normally The LED flashes an error code when the PMD X 126 detects an error condition see section 9 1 The LED is on solid whenever the Test button is pressed Outputs Enabled LED This LED is on when the PMDX 126 s outputs are enabled and is off when the outputs are disabled E Stop LED The E Stop LED is on when the PMD X 126 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 or when the PMD X 126 is in Test
25. 13 Practical Micro Design Inc Page 15 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above Expanded Output M ode is not compatible with the PMD X 106 when the PMD X 106 is plugged into the 10 pin connector J18 This mode is compatible with the PMD X 107 In order to use the PMD X 106 with a PMDX 126 in Expanded Output M ode you must connect the PMD X 106 using discrete wires and configure the spindle PW M and direction signals to use pins 1 to 9 or 14 5 3 3 Expanded Input Mode Expanded Input M ode provides an additional 4 input signals like Expanded I O mode without the slow update output signals on connectors J5 and J6 Expanded Input M ode is not intended for use with dual parallel ports or with a SmoothStepper In Expanded Input M ode using the Mach3 PMD X 126 plug in the PMDX 126 provides the following signals via parallel port 1 Please refer to the PMD X 126 Mach3 plug in documentation for a full description of the available signals e 12 full speed output signals on J1 J2 J3 J4 and J6 pin 17 must be the charge pump signal see the plug in documentation for more information e Output signals on J5 not available except via the 2nd parallel port connector or by using Jumbo M ode see section 5 7 e 2 relays controlled either from parallel port 1 pins 1 and 14 parallel port 2 pin 14 or from the expansio
26. 26 in N ormal Mode without Charge Pump see section 3 1 See section 13 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 9 0 LEDs Steps LED Flickers when activity is detected on pins that may be used for step signals or when Test Mode is generating step pulses see section 5 4 The PMDX 126 does not know which pins are being used as step signals which are used as direction signals or which are used for some other function The PMD X 126 assumes that all of the signals listed in Table 14 could possibly be step signals and monitors them for activity The PMDX 126 also does not PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 26 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above know the polarity of the step signals so it looks for a rising edge on any of the signals listed in the table 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 parallel port 1 pin 1 or parallel port 2 pins
27. 3 3 Expanded INput MO deisinn hi dde eicere 54 Ib 5 4 1 Test Mode DIP Switch Settings ttes 5 42 Push and Hold o Runs io mte tee t pica e tanien cte Pe RR dn 5 4 3 Push t Run Pushto Stop cometen nmt et no ed ie n ae 5 5 Pulse Stretch Mode ree BOTE RERO PRG EP e ena orate re tp tse crece 5 5 1 Pulse Stretch Active Low Mode scsssssssssssssscssssscssssssssssessscsssssnssssesssesssssesssesssessuessusssesssssssessseessess 552 Pulse Stretch Active High Mode tnnt tentent inti 5 6 Probe Merged Inputs Mode n dent raten e ite ped e Paten EUER a ai RH 5 Jumbo Mode 5 or 6 axis from single parallel port sseeeennnnntnn tnnt nnns 60 Input Signal Sinanin redeat nc retener rb peti a teta dn erro te eire eh tal rtr ded et 6 1 General Purpose Inputs 6 2 Pin 15 Inputseeonets 6 3 E Stop Input 6 4 FaultInpUt sacr coment trees 6 5 External Driver Gecko Error Input 6 6 Kilfiput and M achinesHoo Qe 55er ifs bete creer tede rires oret er teer cres eet eie ener e aon PMDX 126 Revision C User s Manual PCB Revision PC B 485C D ocument Revision 1 9 Serial N umbers 29042 and above Table of Contents continued 6 6 1 K Input Filtering tet tet t ate ce c trt e das 25 6 6 2 Machine Hold Pulse Stretching nnne tnnt ttnnnnnent tnnt 25 6 7 E Sto p Fault and Error Input FIlteririg cocro ertet be te re peine d RR ER Rug 25 3 0 Output Sign
28. 5C Document Revision 1 9 Serial N umbers 29042 and above Pin Number Label Description PC 45V 5V power supply referenced to the PC gnd on pin 4 2 8 Buffered signal from pin 8 of the parallel port 1 3 9 Buffered signal from pin 9 of the parallel port 1 4 PCgnd Ground referenced to the ground on the PC parallel port connectors Table 17 Data Bus Connector Pin Out J1 Pin Number Label Description 2 6 Buffered signal from pin 6 of the parallel port 1 4 PCgnd Ground referenced to the ground on the PC parallel port connectors Table 18 Data Bus Connector Pin Out J2 Pin Number Label Description PC 5V__ 5V power supply referenced to the PCgnd on pin 4 4 Buffered signal from pin 4 of the parallel port 1 3 5 Buffered signal from pin 5 of the parallel port 1 PCgnd Ground referenced to the ground on the PC parallel port connectors Table 19 Data Bus Connector Pin Out J3 Pin Number Label Description Cd 1 PC 5V 5V power supply referenced to the PC gnd on pin 4 2 Buffered signal from pin 2 of the parallelport 1 3 3 Buffered signal from pin 3 of the parallel port 1 4 PCqd Ground referenced to the ground on the PC parallel port connectors Table 20 Data Bus Connector Pin Out JA 11 2 Secondary Control Output Connector
29. 7 depending on jumper JP3 see section 4 0 J18 and J19 depending on jumper JP4 see section 4 0 Maximum total current drawn from all PC 5V pins is 350 mA see note 1 below V Raw Unregulated 12V supply on connector J7 Maximum current 300 mA see note 1 below NOTE 1 Total current supplied to external loads from both PC 5V and V Raw including a SmoothStepper if any on J16 and J17 and a PMDX accessory board if any on J18 and or J19 is 500 mA PMD X s experiments with sample SmoothSteppers show that a USB SmoothStepper draws approx 120 mA and an Ethernet SmoothStepper draws up to 300mA from the PMDX 126 See warning in section 2 12 on page 8 for more information External Loads from Isolated Power Supply T5V Regulated 5V supply on connectors J11 and J12 Maximum current 250 mA see note 2 below 12U Unregulated 12V supply on connectors J11 and J12 Maximum current 250 mA see note 2 below NOTE 2 Total current supplied to external loads from both 5V and 12U on J11 and J12 is 250 mA Inputs E Stop and Fault Low must be able to sink 6 mA at less than 0 8V High must be open circuit or greater than 3 0 volts and no greater than 25VDC Response time is 20 us but inputs are filtered to require at least a 50ms pulse see section 6 7 Inputs all except E Stop and Fault Low must be able to sink 6 mA at less than 0 8V High must be open circuit or greater than 3 0 volts and no greater than 6V
30. DC except PN P signals Active PN P signals must be able to source 20 to 24V DC at 6mA minimum Inactive PN P signals must be open circuit or have less than 0 1mA of leakage current Response time is 20 us Outputs High at least 3 8V driving a 16mA load Low at most 0 8V sinking 16mA Maximum data rate 500 KHz Relay K 1 Contact Ratings 30 amperes at 120 VAC 30 amperes at 240 VAC 10 amperes max at 24 VDC Charge Pump Min Frequency 200 Hz minimum square wave appearing on parallel port 1 J15 or J16 pin 17 PMDX 126 Manual 19 doc 21 N ovember 2013 2012 13 Practical Micro Design Inc All Rights Reserved Relay K 2 Contact Ratings 10 amperes at 120 VAC 10 amperes at 240 VAC 5 amperes at 24 VDC Environmental Temperature 0 to 55 C Relative Humidity 20 to 80 relative humidity non condensing Page 38 of 39 PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above Appendix A Warranty Statement Practical Micro Design 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 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 co
31. DX 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 connection to driver boards with ribbon header inputs for parallel port signals Terminal blocks also provide 5 volts and Ground along with Step Dir outputs to drivers Screw terminal blocks 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 NPN sensors 5 volt logic signals and PN P sensors or PLC outputs that source 24 volts DC Pulse 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 Charge 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 PMD X 126 can be supported with the optional PMDX 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 1 5 Updates to This Manual and Application Notes Check the PMDX web site for revisions or upd
32. NECTOR IS NOT AN ETHERNET PORT DO NOT CONNECT THIS TO ANY ETHERNET EQUIPMENT PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 33 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 11 11 Parallel Port 1 Connectors J15 amp J16 The PMDX 126 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 In addition some cables omit some of the status or control signals such as pin numbers 13 and 14 We recommend using cables that are listed as IEEE 1284 compliant ie C IS gm 1 bae 2 PMDX 126 Signal comment ERE ENDE CCE RE CE 2 n 3 4 4 5 5 JjOutput signals to connectors J1 Normally used for step and direction signals 6 6 jhroughJ4 and J19 but may be used as generic outputs 7 Driven high when E Stop Fault Error input is active or other error condition is active while in TEST mode or while the push button is pressed This input should also float high E Stop input to PC and signal an E Stop to the PC when power is removed from the PMDX 126 presuming that the parallel port has a pull up resistor on this pin as specified in th
33. PMDX 134 ssssssssssseseeennten trennen tentent 2 5 2 Discrete W iring to Motor Drivers rnnt tentent 2 6 Test Motor Driver Connections er itia p nis d eb bU et b der cbe EE 2 7 Connect E Stop Switch es 2 8 Connecting Limit amp Home Switches and O ther Inputs 29 Connecting CMOS 5V O utputs sssseeee nnns 210 Connecting Relay O utputs sssssseseenenn nnne nnns 211 Connecting a Touch Probe nennen 2 12 Connecting to a PC or SmoothStepper 243 Test Your Configuration in Normal Mode 244 TestYour Configuration with the Charge Pump 2 45 Test Your Configuration with Machine Hold O PTIO NAL 2 16 Test Your Configuration in Expanded Mode OPTIONAL 30 DIP Switch Settings ne sna hei e reisen rts ptt qp ed en e Id bibe e 31 O perational Mode Switches 32 Auxiliary Mode Switches 33 Relay Mode SWitcligs rtr ct Pp dr UU P a e E pop ordiri 7 ret Perso cpu 40 Jumper Settings adeste rp i nenne a tah nete nt jante br eR as 5 0 Operation MOdES inorri ttt te tae e a dp n an Ta a aces 51 C hanging Modes 5 2 Ten BUD MP taria 5 2 1 Normal Mode without Charge Pump ttes 5 22 Normal Mode with Charge Pump trente ttti tenis 5 3 Expanded Modes 23 eo ah tah et a d en ELM ec ales a ae Be 5 31 Expanded l O MO Erinin cem tcm hg ero n eerte eere aa 5 32 Expanded O utput MOde teo cnt enr eia era rd venite boe 5
34. PMDX 126 Revision C Multi Mode Break O ut Board User s Manual 299 ezoeogceeovoo0 gt t L 9 e 4 g g C 4 LUL SSESSESCITS CUCU SF Document Revision 1 9 Date 27 November 2013 PCB Revision PCB 485C Revision C1 and above Serial N umbers 29042 and above 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 126 Manual 19 doc 2012 13 Practical Micro D esign Inc Page 1 of 39 27 N ovember 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above Table of Contents 1 0 QVerVIQW s cootra ree iban a o d n a rd tdt d v tt la d n a d 11 Important Safety Info rMationn zs iccirco i co en cnt e RE RR HR dati 12 W arranty Summary 13 Trademarks 14 FEU es certe dete eee p n nee 1 5 U pdates to This Manual and Application N otes 2 0 Quick Start GUlde iuncto orte retener etd vat dee ee a d e Lea d P ic ena 21 Select A G Mains MOTLagg inde tede reine rims tere reiner rettet eee prae ERE Ea am die e ded 2 2 Initial DIP Switch and Jumper Settings 23 Initial Power O n 24 Groundirig the PMD X12 Gist uicttpens occi deren ERE pl a erret Eee etie Teeeu n 2 5 Connectirig MotOT D FIVOES etcetera eerie ttbi teen DR e ko erret 25 1 Connecting to PMD X 133 or
35. Page 28 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above The GND terminals on J11 J12 and J13 of the PMDX 126 are isolated from the host computer and may be grounded to the machine frame and the machine s safety ground Experience has shown that connecting one or more of the GN D terminals from the PMD X 126 to the metal control cabinet is helpful in reducing noise problems It also often helpful to connect the negative side of any DC power supply for stepper motors or brushed DC servo motors to the metal control cabinet and the machine safety ground Of course the safety ground from the mains power cable should also connect to the metal control cabinet W e recommend that the host computer be plugged into the same mains power outlet as the machine controller Sometimes it is helpful to provide an accessory mains outlet on the side of the controller for this purpose W here it is not practical to use the same outlet like a 3 phase machine or in case of difficult noise problems we recommend a separate 18 AW G or larger single conductor stranded wire to connect the metal chassis of the host computer to the metal of the machine controller box The PMDX 126 s mains power input is totally transformer isolated and does not have or need a safety ground The mounting screw holes on the PMD X 126 are not electrically connected to any of the
36. a hole in the metal at the end of travel PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 22 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above GND NPN Style Sensors ew D PNP Style Sensors 15 15 D GND GND D 13 13 D GND GND D R 2 gt 2 zi 2 D gt 2 GND Ll 96 GND D ole d as BS s ee v 0 F 5V E 2 45V D E D ERR o tiau Supply Alternate power supply connection cn D supply J12 or J11 if sensors can use a 5V supply J12 or J11 External 24V DC Sensor Power Supply Shows the typical 3 wire color codes and power for sensors that see note below require a 10 to 30V supply Verify your sensor s color code Figure 5 Sample NPN and PNP Style Sensor Input Connections NOTE For reliable operation PNP sensors MUST be powered from an external 24VDC power supply 6 2 Pin 15 Input Some passive touch probes have a built in LED that is used to indicate when the probe touches something In order for this type of touch probe to work with the PMD X 126 the touch probe must be connected to the pin 15 input connector J12 pin 9 Jumper JP5 should be set JP5 to O n to add an additional pull up resistor to the pin 15 input circuit W ithout this resistor the touch probe may not work with the PMDX 126 If you are using some other type of touch probe active probe
37. al Sinara rette eet edere tete dete ree iei dried 71 General Purpose O utputs 7 2 Relay Contact O utputs 73 Restart OU Puts aces sake cece cep ra t re vows i sdace ate nade hevecesae eve REO MORES EAE ERE PUE CUM reis Cun 80 GhargePUImp z sss etre e deii de deeds terat Q EED5 ceo estne rete ote eee co tere fed deed bue ete itin fi dete era deed e E 9 1 Status EED EFBEOT GOdGS astris fette ar cheers rente E etra 92 External LED Connector J7 9 3 Remote Expansion Interface J14 10 0 Grounding and Isolation oce e tede detti ette de etel Whaat 11 0 Connector Pin out Summary tnnt tnn ttn tte tnit tetti tetti ttis ttti TEI DiataBus Connectors JE 27 3 and 4 ioci d te tte o ede eit re teen e n 112 Secondary Control Output Connector J5 ss 113 Primary Control O utput Connector J6 s 114 External LED Connector J7 115 AC Power Connector J8 ss 11 6 Relay Contact Connectors J9 and J10 11 7 Secondary Status Input Connector J11 118 Primary Status Input Connector J12 sssrin 119 E Stop Fault Error K Input and Restart Connector J13 11 110 Remote Expansion Connector J14 sese 1111 Parallel Port 1 Connectors J15 amp J16 1112 Parallel Port 2 Connector J17 seses 1113 Option Card Connector J18 sss 1114 Alternate Step Direction Connector J19 ssseeeeeeeee nennen nennen nennen ttes 12
38. ame direction PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 18 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 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 5 5 Pulse Stretch Mode Pulse stretch mode is designed for use with a sensor that may generate a pulse that is too narrow to be guaranteed to be seen by the CNC software For example with Mach3 running with a 25 KHz kernel rate and the PMDX 126 operating in Expanded I O Mode the pulse from a spindle sensor must be at least 80 microseconds wide Depending on the spindle sensor design and spindle speed this may not be possible W ith pulse stretching mode the PMD X 126 extends the trailing edge of the signal to guarantee that the PC or SmoothStepper sees a pulse that is at least 100 microseconds wide 5 5 1 Pulse Stretch Active Low Mode Pulse stretch active low mode operates with the following constraints O perates on the Pin 15 input only J12 pin 9 Assumes the signal from the sensor is active low driven to GND when activ
39. ates to this manual http www pmdx com The latest revision of this manual is available on the PMD X 126 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 126 PMDX 126 Manual 19 doc 21 N ovember 2013 2012 13 Practical Micro Design Inc All Rights Reserved Page 5 of 39 PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 2 0 Quick Start Guide 2 1 Select AC Mains Voltage The PMDX 126 can be powered from 115 120VAC or 220 230 240VAC There is a voltage selector switch next 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 126 DO NOT APPLY POWER YET 2 2 Initial DIP Switch and Jumper Settings Verify the following board settings N ote that these should all be the default settings when the board is shipped to you e Set all DIP switches to closed see section 3 0 to select Run Normal mode e Verify that the jumper wire is still installed on connector J13 from the E Stop terminal to the GND terminal Verify jumper JP1 is set for Pin 1 see section 4 0 Verify jumper JP2 is set for Pin 14 see section 4 0 Verify jumper JP3 is set for off see section 4 0 Verify jumper JP4 is set for off see section 4
40. ce 8 GND Isolated groundreference 9 I5 Opticalyisolatedinputforparalel port 1 pin 15 Table 28 Primary Status Input Connector Pin Out J12 PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 32 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 11 9 E Stop Fault Error K Input and Restart Connector J13 PinNumber Label Description I seca 8 31 K input or Machine Hold see section 6 6 L 3 eames E Stop Emergency Stop input active high i e open to signal E Stop You must provide a ground 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 PMD X 126 board 5 GND Groundconnection gt S Y O 6 Faut Faultinput activelow SSS O External Gecko etc driver error input negative 8 ERR External Gecko etc driver error input positive 9 COM Common terminal for Restart Output SSS S OO Table 29 E Stop Fault Error K Input and Restart Connector Pin O ut J13 11 10 Remote Expansion Connector J14 The remote expansion connector is used for PMD X remote display boards such as the PMDX 179 The pin out is proprietary WARNING THIS CON
41. de 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 The Steps LED will flicker whenever a step pulse is generated by the PMDX 126 in test mode The output signal LED next to connectors J1 through J6 for the step signal may glow dimly when steps are generated depending on the step speed and polarity 5 4 1 Test Mode DIP Switch Settings 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 X 132 PMDX 133 and PMDX 134 as well as Rutex Hobby CN C 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 In order to use the PMDX 126 s built in test function you must conform to one of the two pin out configurations shown in Table 11 below If you do not need the test functions any pin out may be used for the step and direction signals Config6 Config5 Config4 Config3 Config2 Configl Step Dir Connector Clo
42. e 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 5 5 2 Pulse Stretch Active High Mode Pulse stretch active low mode operates with the following constraints O perates on the Pin 15 input only J12 pin 9 Assumes the signal from the sensor is active high driven to 5V or 24V or open floating Your CNC software must be configured with the pin 15 input as active high Stretches the active high pulse to provide a minimum 100us wide pulse to the PC The active rising edge of the PC signal is aligned with the signal from the sensor The inactive falling edge is delayed going to the PC 5 6 Probe Merged Inputs Mode Probe Merged Inputs mode takes two input signals and merges combines them into one active high signal going into the PC s parallel port This mode can be used with systems that have two probes or a touch plate and a digitizing probe The PMDX 126 then outputs on parallel port 1 pin 15 the logical OR ofthe two signals as shown below Port 1 pin 15 into PC is high if J11 pin 9 is GND or 24V see note below OR J12 pin 9 is 5V or floating NOTE As described in section 6 1 the PMD X 126 interprets 24V on its input usually from a PN P sensor the same as ha
43. e parallel port specification 11 11 jsausinputfrom 2 S O 12 12 jSmusinputfrom 2 S O 13 13 StatusinputfromJ12 4 oL ee O 15 15 jSutusinptfromJ12 S O 16 16 ControlOutputto connector Jo S O PC Ground ie CNN Table 30 PC Parallel Port Connectors J15 and J16 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 is the 25 pin D connector on the PMDX 126 J16 not shown in this table is the 26 pin ribbon cable header on the PMDX 126 The pin out on J16 matches the industry standard for D B 25 signals on a ribbon cable PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 34 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 11 12 Parallel Port 2 Connector J17 The PMDX 126 provides a 26 pin ribbon cable header for the parallel port 2 ise Numbers J17 Ki 1 note 2 PMDX 126 Signal Core i ontrol O utput to connector J5 A Can use the PMDX 108 In or PMD X 108 O ut to access these signals ngn Can be a general purpose input or Status Input from J11 E R 12 23 JgSausiputfrom l F 13 25 Jgsausiputfrom l G 14 2 jControlOutputto conectorj5 B y 15 4 gStausiputfomJl H 9 ES E a a m Control O utput to co
44. e with Touch Probe Merged Inputs see section 5 7 then relay K1 is controlled via parallel port 1 pin 16 e Otherwise relay K1 will remain de energized disabled multimode Relay K1 is controlled from the option card installed in J18 for example from a PMDX 107 Isolated Speed Control WARNING WHEN USING THIS SETTING YOU MUST HAVE A PMDX 107 OR OTHER OPTION CARD INSTALLED IN CONNECTORJ18 Failure to do so will result in unpredictable behavior of relay K1 No jumper Don t care Relay K 1 is de energized disabled DIP Switch Config 7 has no effect installed on relay K1 Table 3 Relay K1 DIP Switch amp Jumper Settings Setting Config Relay k2 Function 00000 Setting Config 8 Relay K2 Function DIP Switch C onfig 8 has no effect on relay K2 Relay K2 is controlled from parallel port 1 pin 14 multimode Closed e If the PMDX 126 is in Expanded I O or Expanded Output mode see section 5 3 then relay K2 is controlled via expanded I O data e If the PMD X 126 is in any Test mode see section 5 4 then relay K2 will be de energized e Otherwise K2 is controlled via parallel port 2 pin 14 Note that if you do not have a 2nd parallel port connected to the PMD X 126 the relay will remain de energized multimode Relay K2 controlled by O utputs Enabled signal The relay is energized when the PMD X 126 s outputs are enabled the O utputs Enabled LED is on and the relay
45. eneral Purpose Inputs The PMDX 126 provides eight 9 optically isolated general purpose input signals four on connector J12 parallel port 1 and four on J11 parallel port 2 and one on J13 K input to parallel port 2 pin 10 In Expanded I O M ode and Expanded Input M ode eight of these signals are available on a single parallel port see section 5 3 Internal circuitry on the PMDX 126 pulls these inputs high when there is nothing connected to the input terminal or when a switch circuit is open The PMDX 126 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 sensors e 5V logic signals e PNP style sensors or PLC outputs that supply 24 volts PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 20 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above These devices can act as limit switches home indicators or other status information The PMDX 126 s inputs should be connected to the adjacent GN D terminal left floating or driven from a 5V or 24V source Mechanical switches can be wired directly between the input pins on J11 J12 or J13 and adjacent
46. gnals instead of the usual 5 The additional output signals are labeled A B C and D on connector J5 These are normally associated with the 2nd parallel port but in Expanded I O and Expanded Output modes only they are driven by the PMDX 126 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 1 0 M ode and Expanded Input mode they are multiplexed onto parallel port 1 WARNING The K input on J13 is only available on parallel port 2 It isNOT available to parallel port 41 as expanded input data If jumper JP6 is set to enable M achine H old the K input will function as the machine hold signal but the PC will have no way to know whether or not machine hold is active In order to use either of the PMD X 126 s expanded modes with Mach3 you must download and install the PMDX 126 Mach3 plug in To use the expanded modes with EMC you 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 features and functionality available in each expanded mode For a full explanation please download the plug in documentation from the Support gt D ownloads area of our web site In either Expanded I O or Expanded Output mode outputs A B C and D on connector J5 have a slow update
47. guarantee that the PC has a chance to see that the machine hold signal has been asserted even if the machine hold input is active for only a short duration 6 7 E Stop Fault and Error Input Filtering The PMDX 126 filters the E Stop Fault and Error inputs to help eliminate noise from causing false E Stop conditions These inputs are sampled 1250 times per second and must remain active for 64 consecutive samples approximately 50 ms in order for the PMDX 126 to declare them active and disable its outputs and assert the E Stop signal to the PC O nce a signal is determined to be active it will go inactive on the first sample where the input signal is inactive That means that the active going transition is filtered but the inactive transition is not Note that the E Stop and Fault inputs are combined into a single signal and THEN sampled by the noise filter 7 0 Output Signals 7T 1 General Purpose Outputs The PMDX 126 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 I O or Expanded Output modes see section 5 3 These outputs are 5V digital CMOS outputs and are buffered but NOT optically isolated Motor drivers and output devices often provide their own built in isolation 7 2 Relay Contact Outputs The PMD X 126 has two on board relays Relay K1 provides connections to its normally open N O set of contacts Relay K1 always has an MO
48. he two test modes 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 Note that when the PMDX 126 is in one of the test modes see section 5 4 the relays are forced to the de energized state The Relay Mode switches are read continuously and any change takes effect immediately Unlike the operational mode switches you do not need to press the Test button to activate the new relay settings PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 10 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 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 multimode the corresponding DIP switch will have no effect on the relay Sang Config ReyKiFux n i O Setting Config 7 Relay K1 Function Pin 1 DIP Switch Config 7 has no effect on relay K1 Relay K1 is controlled Poe from parallel port 1 pin 1 multimode Closed e If the PMDX 126 is in Expanded I O or Expanded Output mode see section 5 3 then relay K 1 is controlled via expanded I O data e If the PMDX 126 is in Jumbo Mode or Jumbo Mod
49. ig6 o LQ Configi i ECT 9 Contigt Rocker Config7 Relay Modes ifo LAS Confio fo mg gr confie C onfig8 see section 3 3 i 5 Lgl Contigs Ho Oo Configs Style z fo O Config4 z Oo O Config4 G i o i ray section 5 i go Contig 5 o 9jo Configs represents the fo L 9e Config6 fo Lge Config6 side of the ilo T Ol Configz io T On Config7 switch that is ilo Qol Contig o Qo J Config pressed down Example 1 Example 2 Figure 2 Sample DIP Switch Settings Example 1 shows the DIP switches as shipped from the factory All switches are closed Example 2 shows the DIP switches set so that C onfig 1 is open and all other switches are closed PMDX 126_Manual_19 doc 2012 13 Practical Micro D esign Inc Page 9 of 39 27 N ovember 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 3 4 Operational Mode Switches The O perational Mode switches are read only on power up or when the Test push button is pressed This means that if you change the settings on these switches you must power the PMDX 126 off and back on or press amp release the Test push button in order for the change to take effect Run in Expanded Input Mode See section 5 3 O pen Closed O pen Do Not Use will keep E Stop asserted and flash an error code on the Status LED see section 9 1 Test Mode PMDX pin ou
50. inal connectors J1 through J5 It also allows PC control of the large on board relay K1 You may optionally also enable the touch Probe Merged Inputs functionality see section 5 6 muss pisa STEP Sonal DIR Sgal STEP signal Connection DIR signal STEP signal DIR signal STEP signal Connection J4 pin 2 2 J4 pin 3 3 J2 pin 2 6 J2 pin 3 7 PMDX 133 1 Axis 3 JLpin2 8 JL pin 3 9 PMDX 133 2 Axis 1 J5 pin 3 B J5 pin 2 A PMDX 133 2 Axis 2 Axis 6 pin 2 cloned pin 3 cloned J5 pin 5 D J5 pin 4 C PMDX 133 2 Axis 3 and inverted Table 13 Step and Direction signal mapping in Jumbo Mode The 6th axis is cloned from axis 1 in hardware on the PMDX 126 board The 6th axis DIR signal is inverted with respect to the axis 1 DIR signal Parallel port pin 16 may be used to control the K1 relay by setting jumper JP1 to multimode and DIP Switch Config 7 closed See section 3 3 for more information on controlling relay K 1 The function of parallel port pin 17 depends on the operational mode DIP switches see section 3 1 If set for N ormal Mode then pin 17 is a general purpose output If set for N ormal Mode with Charge Pump or Expanded Input Mode then pin 17 must be configured as the charge pump signal Note Jumbo Mode cannot be used when the board is configured for Expanded 1 0 or Expanded O utput modes 6 0 Input Signals 6 1 G
51. 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 GND 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 3 shows an example of normally closed mechanical switches The switches are wired in series so that the normal case is ground logic low going into pin 13 of the PC s parallel port W hen one or more of the switches open a pull up circuit in the PMDX 126 provides a logic high into pin 13 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 PMD X 126 Normally O pen Switches The right hand drawing in Figure 3 shows an example of normally open mechanical switches The switches are wired in parallel so that the normal case is that the pull up circuit in the PMD X 126 provides a logic high going into pin 13 of the PC s parallel port W hen one or more of the switches close alogic low appears on pin 13 on the PC s parallel port Any number of normally open switches may be paralleled onto a single input terminal on the PMD X 126 PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 21 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C
52. it back to you via ground transportation at our expense Repairs are normally completed within 10 business days See Appendix A for our complete warranty details Please see the W arranty and Repairs page on our web site http www pmdx com for full details of our repair and shipping policies 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 CN C http www linuxcnc org G201X G203V G320X and Geckodrive G eckodrive Inc http www geckodrive com Mach3 ArtSoft http www machsupport com SmoothStepper W arp9 Tech Design Inc http www warp9td com PMD X 104 PMD X 106 PMD X 107 PMDX 108 PMD X Practical Micro Design Inc PMD X 132 PMD X 133 and PMD X 134 http www pmdx com PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 4 of 39 27 N ovember 2013 All Rights Reserved PMDX 126 Revision C User s Manual Document Revision 1 9 1 4 Features The PMDX 126 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 PMDX 126 as a daughter board and power to run the SmoothStepper fed via ribbon cables e Supports up to 12 o
53. ith the error input so that the PMD X 126 can automatically pulse a reset or restart input on the motor driver 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 Error Input and the Restart output to interface to a Gecko G 320X http www pmdx com then look on the Support page 6 6 K Input and Machine Hold The K input on connector J13 can act as a general purpose input to parallel port 2 pin 10 or it can act as a machine hold input Jumper JP6 determines how the K input is used W hen JP6 is set to Normal the K input is filtered see below and output on parallel port 2 pin 10 W hen JP6 is set to M hold the K input is filtered see below and used as an active high machine hold signal W hen configured as a machine hold input if the input signal is active open circuit or 5V the PMD X 126 will disable all of its outputs expect possibly relay K2 see below regardless of the state of the charge pump signal and sends a logic high to the PC on parallel port 2 pin 10 W hen the input PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 24 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above goes inactive ground or 24V the PMD X 126 sends a logic low to the PC and allows the cha
54. l defeat the optical isolation provided by the PM DX 126 and possibly damage the board or your PC s parallel port PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 23 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above The E Stop and Fault inputs are combined to drive pin 10 on the PC s parallel port and to enable or disable all of the PMD X 126 s output signals i e all PMD X 126 output signals are disabled as long as either the E Stop or Fault signals are active 6 4 Fault Input The Fault input provides an interface for external fault detection circuits This signal is active low meaning that a logic low or ground indicates a fault condition and a logic high or floating means all is OK See section 6 7 for information on how the PMDX 126 filters the Fault input 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 All of the external fault signals should be tied together and connected to the PMD X 126 s Fault input provided that the fault signals can share the same ground reference the GN D terminal on J13 The 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
55. mponent 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 Design Inc in respect of any defective product will be limited to the repair or replacement of such product Practical Micro D esign 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 product or d asa result of any event circumstance action or abuse beyond the control of Practical Micro Design Inc whether such damages be direct indirect consequential special or othe
56. n connector and the outputs enabled signal see section 4 0 for more information 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 Use of Expanded Input M ode with Mach3 requires the PMD X 126 Mach3 plug in which may be downloaded from our web site 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 configure Mach3 to access the additional input signals Use of Expanded Input M ode with EMC requires an EMC HAL configuration that supports this mode Expanded Input M ode is compatible with the PMD X 106 when the PMD X 106 is plugged into the 10 pin connector J18 This mode is also compatible with the PMDX 107 when the PMDX 107 is set to normal non expanded mode 5 4 Test Modes The PMD X 126 provides a method for stand alone motor testing and for adjusting the Gecko adjust trim pot These test mode generate internal step and direction signals without 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 PMD X 126 connected to a PC If a PC is connected to the PMD X 126 while it is in test mode the PMD X 126 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
57. nector 5 D O 2 10 24 Table 31 PC Parallel Port Connectors J17 No connection on the PMD X 126 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 11 13 Option Card Connector J18 The option card connector is used for PMD X option boards such as the PMD X 107 The pin out is proprietary PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 35 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 11 14 Alternate Step Direction Connector J19 This connector provides a method to access parallel port 1 pins 2 through 9 and parallel port 2 pins 1 14 16 and 17 other than by using discrete wires on connectors J1 J2 J3 JA and J5 J19 is a 26 pin ribbon cable header and allows the use of a 26 pin ribbon cable to connect the PMD X 126 to any multi axis motor driver that has a 26 pin header on it Specifically this connector can be used to connect the PMD X 126 to a PMD X 134 4 axis Gecko Motherboard or two one or two PMDX 133 boards 3 axis D aisy C hainable Gecko Motherboard Table 32 shows the pin out of this connector Note that all signals on this connector are buffered by the PMD X 126 Additionally
58. ning 5 2 2 Normal Mode with Charge Pump In N ormal Mode with Charge Pump the PMD X 126 looks for a charge pump signal on parallel port 1 pin 17 see section 8 0 for more information The PMD X 126 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 Note that the E Stop Fault and 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 13 0 Both Mach3 and EMC have this capability PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 13 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 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 126 s expanded modes allow you to access more input and output signals while still using a single parallel port 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 CMO S outputs e Adds an additional 4 output signals e Allows for 9 input si
59. nnections 7 3 Restart Output The Restart output is a pair of solid state relay contacts on connector J13 labeled RST and CO M that are closed for approximately 2 seconds every time the PMD X 126 enables its outputs The Restart output can be used to reset the motor drivers such as the Gecko G 320 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 126 and all motor drivers when the software running on the PC stops working properly The charge pump also keeps the PMDX 126 disabled while the PC starts up i e all outputs are disabled until the PC boots and the CN C 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 126 outputs 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 PMD X 1
60. nnector J11 Pin Number Label Description Description Unregulated 12V power supply referenced to the GN D pins on this connector Regulated 5V power supply referenced to the GND terminals on this connector in Expanded Input or Expanded I O modes O ptically isolated input for parallel port 2 pin 11 or multiplexed onto port 1 pin 11 in Expanded Input or Expanded I O modes 4 GND Isolated ground reference O ptically isolated input for parallel port 2 pin 12 or multiplexed onto port 1 pin 12 in Expanded Input or Expanded I O modes 6 GND Isolated qroundreference Z O O O ptically isolated input for parallel port 2 pin 13 or multiplexed onto port 1 pin 13 in Expanded Input or Expanded I O modes 8 GND Isolated qroundreference Z O pod O ptically isolated input for parallel port 2 pin 15 or multiplexed onto port 1 pin 15 in Expanded Input or Expanded I O modes Table 27 Secondary Status Input Connector Pin Out J11 11 8 Primary Status Input Connector J12 Pin Number Label Description Unregulated 12V power supply referenced to the GN D pins on this connector Regulated 5V power supply referenced to the GND terminals on this connector O ptically isolated input for parallel port 1 pin 11 4 GND Isolated ground reference 6 GND Isolated groundreferen
61. o 26 pin female to female ribbon cables Determine how you will provide power to the SmoothStepper Configure jumper JP3 on the PMDX 126 and the SmoothStepper jumpers according to the description in Table 7 in section 4 0 WARNING If you are using an Ethernet SmoothStepper ESS be aware that the PMDX 126 can supply enough power only if the ESS is the only device drawing power from the PM DX 126 If you plan to use a PMDX 107 PMDX 108 Input or PM DX 108 O utput powered from thePM DX 126 PM DX 104 or PMDX 105 or any other device that draws power from J1 J2 J3 J4 J5 J6 or J7 then the ESS MUST be powered from an external power supply 2 13 Test Your Configuration in Normal Mode The PMDX 126 has several different operating modes some of which have additional requirements for proper operation Starting to test your setup with the PMDX 126 in Normal mode removes most of those requirements and makes it easier to test the basic setup This allows you to test the wiring to from the PMDX 126 as well as the I O settings in your motion control software Mach3 EMC etc e Turn all of the DIP switches to the closed position this should be the default setting when we ship the board to you and the configuration used in step 2 2 e Apply power to the PMDX 126 and verify that the O utputs Enabled LED is on If the O utputs Enabled LED is not on all of the PMDX 126 s outputs will be disabled Using your CNC software on the PC
62. or device may damage the PM DX 126 10 0 Grounding and Isolation The PMDX 126 has opto isolated inputs so that a properly designed system can avoid ground loops and conducting noise back to the host computer The PMDX 126 outputs are not opto isolated because most output devices have their own isolation Stepper motor drivers typically have opto isolated control signal inputs Solid state relays and mechanical relays also provide isolation The PC gnd terminals on J1 through J7 are connected to the ground of the host computer or pulse generator such as a SmoothStepper through the parallel port cable Inside the computer this ground is connected to the safety ground of the power cord For pulse generators this ground may of may not connect to a PC depending on the pulse generator In order to avoid ground loops you should not connect PC gnd to any frame or safety ground in the machine control box The metal shell of the parallel port cable should not make contact with the metal wall of any control enclosure because this would also short PC gnd to the frame ground of the control enclosure The mounting screws for the D B 25 connector will also short PC gnd to the enclosure The best way to avoid this problem is plug the parallel port cable D B 25 directly into the D B 25 connector at J15 on the PMDX 126 or to mount any intermediate D B 25 connectors on a plastic sub panel PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc
63. passive probe without a built in LED or any other type of limit switch or input signal set JP5 to off 6 3 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 See section 6 7 for information on how the PMDX 126 filters the E Stop input The E Stop input has an internal 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 The E Stop signal must be grounded or driven low in order for the PMD X 126 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 WARNING Do not connect the E Stop circuit to any ground or common signal on the PM DX 126 other than on connector J13 Doing so wil
64. pen if it is pressed down on the side towards the O PEN label on the switch body and away from the Config labels on the circuit board The switch is closed when it is pressed down on the side closest to the Config labels on the circuit board and away from the O PEN label on the switch body Sliding style switches operate by sliding the raised part of each switch towards one side or the other The switch is open when the raised part is away from the ON label on the switch body and away from the Config labels on the circuit board The switch is closed when the raised part is towards the ON label on the switch body and towards the Config label on the circuit board ON Configi ON Config1 Slidi rol Contig2 no Config2 laing Config3 Config3 ee wo 7 T a Configs al Config4 Style Configl O perational Mode a Configs cfg contigs Gray rectangle Config2 see section 3 1 z represents the 7 o Pontige o Congo Mud part of the Co nfig3 NI T NJ pal Switch lever Co nfig4 A uxiliary M ode oy om y ep ren Config5 see section 3 2 I k Conf
65. pins in the other row which is the standard for ribbon cable connectors PMDX 126_Manual_19 doc 2012 13 Practical Micro D esign Inc Page 36 of 39 27 N ovember 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 12 0 Mechanical Specifications m 5 000 6 each holes for 46 screw to mount board Qo O 0 750 4900 4 250 E 3 660 pr 3 each holes for 6 screw to mount 2 975 SmoothStepper 0 150 4 850 0 440 EE a E NE ER K 0 000 Q QO y 0379 0 150 0 000 Figure 7 PMDX 126 Dimensions and Mounting Holes WARNING The PMDX 126 should be protected from liquids dirt or chips especially metal chips which can cause shorts coming in contact with the board PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 37 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual Document Revision 1 9 PCB Revision PC B 485C Serial N umbers 29042 and above 13 0 Electrical and Environmental Specifications Main Power 115VAC 110 to 125VAC or 230VAC 220 to 240VAC switch selectable 0 150 Amperes maximum External Loads from Primary Power Supply PC 45V Regulated 5V supply referenced to PC ground on connectors J1 J2 J3 J4 J5 and J6 PC 45V is also present on connectors J16 and J1
66. ports Expanded O utput mode though the PM DX 126 hardware and M ach3 Plug In still allow this mode for people who are already using it Expanded O utput Mode provides the additional 4 output signals and 2 relay control signals that Expanded 0 Mode provides without the multiplexed input signals It is not intended for use with dual parallel ports or with a SmoothStepper In Expanded Output M ode using the Mach3 PMDX 126 plug in the PMDX 126 provides the following signals via parallel port 1 Please refer to the PMD X 126 Mach3 plug in documentation for a full description of the available signals e 10 full speed output signals on J1 J2 J3 J4 and J6 pins 1 and 14 only pin 17 must be the charge pump signal and in 16 is used for expanded data control 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 NOTE Use of Expanded O utput Mode with Mach3 requires the PMDX 126 Mach3 plug in which may be downloaded from our web site 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 configure Mach3 to access the additional output signals Use of Expanded O utput Mode with EMC requires an EMC HAL configuration that supports Expanded O utput Mode PMDX 126 Manual 19 doc 2012
67. rate which makes them unsuitable for use as step and direction signals They can be used for general control signals like coolant on off or PLC inputs Due to limitations in the current Mach3 implementation these outputs are updated once every 1 to 2 seconds See the plug in documentation for more information Expanded I O and Expanded Input modes require a charge pump signal on parallel port 1 pin 17 see section 8 0 for more information on the charge pump signal Expanded I O and Expanded Output modes require a bit stream signal on parallel port 1 pin 16 Please refer to the PMDX 126 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 PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 14 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 5 3 4 Expanded I O Mode PM DX no longer recommends or supports Expanded I O mode though the PM DX 126 hardware and M ach3 Plug In still allow this mode for people who are already using it Expanded I O M ode 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 I O M ode using the Mach3 PMD X
68. rge pump signal to enable its outputs NOTE In order to use the Machine Hold function in Mach3 you need a macro or brain function to monitor parallel port 2 pin 10 and activate Mach3 s internal machine hold signal accordingly Relay K2 in Machine Hold If jumper JP2 is set for multimode and DIP Switch 8 is set to open then relay K2 will energize whenever the outputs enabled LED is on i e when the charge pump starts This allows relay K2 to control the power supply to the motors and have the motors power up even while the system is in machine hold Status LED Flash Pattern in Machine Hold The PMD X 126 will display a special flash pattern on the status LED while machine hold is active See table 15 in section 9 1 for details 6 6 1 K Input Filtering The K input is sampled and filtered in firmware before being sent to parallel port 2 pin 10 This filtering is a little differently than the EStop and Error filtering described in section 6 7 The K input is sampled 1250 times per second The samples are then run through a hysteresis filter to help reduce the likelihood of short noise spikes from coming through It takes at least 12 samples to change from high to low or vice versa 6 6 2 Machine Hold Pulse Stretching W hen configured for machine hold an active going machine hold input open circuit or 5V on the J12 pin generates a minimum 1 second high pulse to parallel port 2 pin 10 This helps
69. rwise and whether such damages are incurred by the person to whom this warranty extends or a third party PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 39 of 39 27 N ovember 2013 All Rights Reserved
70. sed Closed Closed O pen O pen Closed Rem Pins Bin te 1L 4 also fS Closed Sm J19 COCE 222 P i Rr mr en Table 11 Test Mode Step and Direction Pin O ut Mapping NOTE Configl switch closed uses the PMD X style step dir pin out while Configl open uses the alternate step dir pin out These definitions matter only while in Test Mode For normal operation any data pin may be used for either step or direction signals Config 7 Test mode is push and hold to run Open Test mode is push to run push to stop Table 12 Test Start Stop Mode DIP Switch Settings PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 17 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 5 4 2 Push and Hold to Run W hen in this test mode pressing and holding the Test push button when no fault is indicated turns the Status LED on solid and causes the PMD X 126 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 1 000 steps per second and maintain that rate until the push button is released Ramp down from 1 000 steps per second to 25 steps per second then stop a on A WUW N e Toggle the test mode direction so that the next push button press will move the motor in the opposite direction
71. t Step direction inputs a ANE G212 or G320 COMMONC a PO 5V Figure 1 Example Discrete W iring Connections to Various Motor Drivers 2 6 Test Motor Driver Connections Power on the board and use the PMD X 126 s built in test modes to verify that you have the step and direction signals wired correctly between the PMDX 126 and your stepper drivers See section 5 4 for more information on the PMD X 126 s test modes 2 7 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 PMD X 126 on connector J13 from the E Stop terminal to the GND terminal Verify that the red E Stop LED on the PMDX 126 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 3 for more information about the E Stop input 2 8 Connecting Limit amp Home Switches and Other Inputs Connect any limit or home switches spindle sensors etc to the PMD X 126 s input terminals See section 6 0 for more information 2 9 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 has 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
72. to J16 and J17 pins 26 Use this setting if you want to power a SmoothStepper from the PMDX 126 s power supply USE THIS SETTING ONLY IF YOU ARE POWERING A SMOOTHSTEPPER OR PMDX ACCESSORY BOARD PMDX 108 PMDX 145 etc FROM THE PMDX 126 NOTE You must change the SmoothStepper s power supply jumpers in order to have it powered by the PMDX 126 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 126 from the SmoothStepper The PMDX 126 must be powered from the AC mains N othing is connected to J16 and J17 pin 26 If a SmoothStepper is connected to the PMDX 126 the SmoothStepper must be powered from its USB connector or an external power supply It will NOT be powered from the PMDX 126 Table 7 Jumper JP3 Settings SmoothStepper Power Pins Label Function of JP4 PC 45V 45V relative to PC ground is connected to J19 pin 26 No connection to J19 pin 26 Table 8 Jumper JP4 Settings 5V Power to Connector J19 pin 26 Additional pull up resistor to 5V is attached to the Pin 15 screw terminal See section 6 2 for more information Pin 15 input has normal pull up Table 9 Jumper JP5 Settings Pin 15 touch probe resistor
73. ts see section 5 4 Test Mode Alternate pin outs see section 5 4 Table 1 Operational Mode DIP Switch Settings 3 2 Auxiliary Mode Switches For all operational modes except the two test modes DIP switches Configo through Config4 determine the auxiliary optional functions on the PMD X 126 In test mode the switches determine on which pair of pins the step and direction signals appear see section 5 4 for more information These switches are read only at power up or when the Test push button is pressed This means that if you change the settings on these switches you must power the PMD X 126 off and back on or press amp release the Test push button in order for the change to take effect Config 6 Config5 Config4 Ifin any Run Mode N o auxiliary features Touch probe merged inputs see section 5 6 Closed O pen Closed Enable pulse stretching on input pin 15 J12 pin 9 for active low pulses See section 5 5 Closed Open Open Enable pulse stretching on input pin 15 J12 pin 9 for active high pulses See section 5 5 Jumbo Mode 5 or 6 axis from one parallel port with touch probe merged inputs See section 5 7 Open O pen Closed Jumbo Mode 5 or 6 axis from one parallel port without touch probe merged inputs See section 5 7 Do not use will assert E Stop and flash an error code Table 2 Test Mode Step Dir Select DIP Switch Settings 3 3 Relay Mode Switches For all operational modes except t
74. utputs as step and direction signals for up to 6 motor axes using dual printer ports or Smoothstepper e Mach software plug in provided to support enhanced I O features e On board LED indicators on all signals e Terminal strip outputs provided for external LEDs showing status of Power O n E Stop Charge Pump and step signal activity e All status inputs are optically isolated e All parallel port signals are terminated and filtered to help resist noise problems e All step direction and control output signals are buffered with 16 mA drivers e Special isolated interface to sense ERR RST signal used by Geckodrive and other servo products that can sense faults and also reset and enable the drivers from the computer e E Stop Fault ERR RST and Charge 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 e Can provide 5 axis from a single parallel port or 6 axis with the 6 axis cloned in hardware from the first axis PCB Revision PC B 485C Serial N umbers 29042 and above 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 PMDX 107 or using a ribbon cable to the PM
75. ving its input grounded For example consider a system that has both a touch plate and a digitizing probe Touch plates are usually configured to ground the input when the tip hits the touch plate Therefore the signal from the touch plate should be connected to J11 pin 9 labeled H Digitizing probes usually operate as normally closed switches which open when the probe touches something The digitizing probe should therefore be connected to J12 pin 9 labeled 15 Configure your motion control software Mach3 EMC etc to use parallel port 1 pin 15 as an active high input signal in Mach3 that means a red X in the Low Active column PMDX 126 Manual 19 doc 2012 13 Practical Micro Design Inc Page 19 of 39 27 November 2013 All Rights Reserved PMDX 126 Revision C User s Manual PCB Revision PC B 485C Document Revision 1 9 Serial N umbers 29042 and above 5 7 Jumbo Mode 5 or 6 axis from single parallel port NOTE This section provides an overview of Jumbo Mode For more detailed information see the PMDX 126 Jumbo M ode application note on our web site http www pmdx com A ppN otes NOTE Jumbo Mode is only available on PMD X 126 boards with revision A3 and higher Jumbo Mode allows for a 5 or 6 axis system to be run from a single parallel port with the step and direction signals routed for use with two daisy chained PMDX 133 Gecko Motherboards connected to J19 or with hand wired connections from screw term
76. which the PMD X 126 is installed should provide fail safe protection and emergency stop capability The PMDX 126 contains circuitry that may be connected to dangerous voltages 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 switches on power circuits should remove power when the enclosure is opened Automated machine tools into which the PMD X 126 may be integrated can cause injury Precautions should be taken to assure that operators are trained in their proper operation and safety procedures and that they are protected from moving parts that 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 PMDX 126 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 NOTE f you have an item requiring service please see the W arranty and Repairs page on the PMD X web site http www pmdx com for return instructions In general the purchaser must pay shipping to send the unit to PMDX For repairs covered under warranty and with return shipping to a USA address PMDX will ship the repaired un

PMDX-126 Revision C User`s Manual

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