Delta Tau PMAC2A-PC/104 manual Machine Connections, Mounting, Power Supplies, Digital Power Supply

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PMAC2A PC104 Hardware Reference Manual

MACHINE CONNECTIONS

Typically, the user connections are actually made to terminal blocks that are attached to the JMACH connectors by a flat cable. The following are the terminal blocks recommended for connections:

•34-Pin IDC header to terminal block breakouts (Phoenix part number 2281063) Delta Tau part number 100-FLKM34-000

•50-Pin IDC header to terminal block breakouts (Phoenix part number 2281089) Delta Tau part number 100-FLKM50-000

Mounting

The PMAC2A PC/104 is always installed either using standoffs, when it is stacked to a PC/104 computer or used as a stand-alone controller. At each of the four corners of the PMAC2A PC/104 board, there are mounting holes that can be used to mount the board on standoffs.

The PMAC2A PC/104 baseboard is placed always at the bottom of the stack. The order of the Acc-1P or Acc-2P with respect to the baseboard does not matter.

Power Supplies

Baseboard mounted at the bottom of the stack

Digital Power Supply

3A @ +5V (±5%) (15 W)

(Eight-channel configuration, with a typical load of encoders)

The PMAC2A PC/104, the Acc-1P and the Acc-2P each require a 1A @ 5VDC power supply for operation. Therefore, a 3A @ 5VDC power supply is recommended for a PMAC2A PC/104 board stack with Acc-1P and Acc-2P boards.

•The host computer provides the 5 Volts power supply in the case PMAC is installed in the PC/104 bus. With the board stack into the bus, it will automatically pull +5V power from the bus and it cannot be disconnected. In this case, there must be no external +5V supply, or the two supplies will "fight" each other, possibly causing damage. This voltage could be measured on the TB1 terminal block or the JMACH1 connector.

•In a stand-alone configuration, when PMAC is not plugged in a computer bus, it will need an external 5V supply to power its digital circuits. The 5V power supply can be brought in either from the TB1 terminal block or from the JMACH1 connector.

DAC Outputs Power Supply

0.3A @ +12 to +15V (4.5W)

0.25A @ -12 to -15V (3.8W) (Eight-channel configuration)

•The host computer provides the ±12 Volts power supply in the case PMAC is installed in the PC/104 bus. With the board stack into the bus, it will pull ±12V power from the bus automatically and it cannot be disconnected. In this case, there must be no external ±12V supply, or the two supplies will fight each other, possibly causing damage. This voltage could be measured on the TB1 terminal block.

•In a stand-alone configuration, when PMAC is not plugged in a computer bus, it will need an external ±12V supply only when the digital-to-analog converter (DAC) outputs are used. The ±12V lines from the supply, including the ground reference, can be brought in either from the TB1 terminal block or from the JMACH1 connector.

Machine Connections

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Contents PMAC2A-PC/104 Delta Tau Data Systems, Inc. Technical Support Copyright InformationTable of Contents Software Setup Base Board Connector Pinouts PMAC2A PC104 Hardware Reference Manual Table of Contents Introduction Board ConfigurationAcc-1P Option 2 Analog-to-Digital Converters Option 12 Analog-to-Digital ConvertersAcc-1P Axis Expansion Piggyback Board Acc-1P Option 1 I/O PortsAcc-2P Option 2 Dpram Circuitry Acc-2P Communications BoardAcc-2P Option 1A USB Interface Acc-2P Option 1B Ethernet InterfacePMAC2A PC104 Hardware Reference Manual Introduction Clock Configuration Jumpers Base Board Hardware SetupBoard Reset Jumpers Communication Jumpers CPU Jumper ConfigurationConfiguration Jumpers Resistor Packs ConfigurationDevice Resistor Pack Pack Size PMAC2A PC104 Hardware Reference Manual Reserved Configuration Jumpers ACC-1P Hardware SetupE0 Reserved for future use Handwheel Encoder Termination Resistors Jthw Connector DATx SELx ACC-2P Hardware SetupJopt Connector E10 MOx MIx Lines Differential or Single-Ended Handwheel Encoder Selection Machine Connections Power SuppliesDigital Power Supply DAC Outputs Power SupplyMotor Signals Connections Overtravel Limits and Home SwitchesExample DAC Output SignalsAmplifier Enable Signal AENAx/DIRn Pulse and Direction Stepper DriversAcc-1P General-Purpose Digital Inputs and Outputs J7 Port Amplifier Fault Signal FaultAcc-1P Thumbwheel Multiplexer Port J2 Port Acc-2P General-Purpose Digital Inputs and Outputs Jopt PortAcc-2P Thumbwheel Multiplexer Port Jthw Port Optional Analog Inputs Acc-1P or Acc-2P Handwheel Port JHW / PD PortCompare Equal Outputs PC DB-9 Acc-2P Ethernet RJ45 Connector J10 PortAcc-2P USB Connector J1 Port Serial Port JRS232 PortMachine Connections Example Using Analog ±10V Amplifier PMAC2A PC104 Hardware Reference Manual PMAC2A PC104 Hardware Reference Manual Machine Connections Pmac I-Variables Software SetupOperational Frequency and Baud Rate Setup CommunicationsI54 Baud Rate Filtered DAC Outputs ConfigurationI54 Baud Rate for Flag Type Channel Number Using Flag I/O as General-Purpose I/OGeneral-Purpose Digital Inputs and Outputs Acc-1P with Jumper E6 on PositionOpen PLC1 Clear Acc-2P with Jumper E5 in PositionAcc-1P with Jumper E6 in Position Thumbwheel Port Digital Inputs and OutputsBaseboard Analog Inputs Analog Inputs SetupAcc-1P Analog Inputs Base Board Hardware Reference Summary Board DimensionsFeature Location FeatureBoard Layout Connectors and Indicators Page ACC-1P Hardware Reference Summary TB1 JMACH1 J7 General-Purpose Digital Inputs and Outputs Jopt Port J2 Thumbwheel Multiplexer Port Jthw PortJ8 Handwheel / Pulse and Direction Port JHW / PD Port Page ACC-2P Hardware Reference Summary TB1 Jthw Jopt J8 Handwheel/Pulse and Direction Port JHW / PD Port J1 USB Communications PortJ10 Ethernet Communications Port Page Base Board E-POINT Jumper Descriptions E0 Forced Reset ControlE1 Servo and Phase Clock Direction Control E3 Normal/Re-Initializing Power-Up/ResetDescription Default E8 Phase Clock Lines Output EnableE9 Servo Clock Lines Output Enable E10 E12 Power-Up State JumpersE15A, B, C Flash Memory Bank Select E13 Power-Up/Reset Load SourceE14 Watchdog Disable Jumper E16 ADC Inputs EnableE18 E19 PC/104 Bus Address Point and Physical Location Description Default LayoutE3 E4 JHW, PD Function Select E1 E2 Machine Output Supply Voltage ConfigureACC-1P E-POINT Jumper Descriptions E0 Reserved for Future UseE6 I/O Gate Address Select E5 Servo Gate Address SelectE7 Machine Input Source/Sink Control E6 Communications Port Select E1 USB/Ethernet Micro-Controller Firmware Reload EnableACC-2P E-POINT Jumper Descriptions E5 I/O Gate Address SelectE7- E10 Ports Direction Control Point and Physical Location Description DefaultPin# Symbol Function Description Base Board Connector PinoutsTB1 Jpwr Power Supply J4 JRS232 Serial Port ConnectorJ3 JMACH1 Machine Port Connector J3 JMACH1 50-Pin Header J4 JMACH2 Machine Port Baseboard Connector ACC-1P Connector Pinouts Pin# Symbol J2 Jthw Multiplexer Port ConnectorJ3 JMACH1 Machine Port Connector Pin Header J3 JMACH1 50-Pin-Header FLG78V Connector 34-Pin HeaderJ7 Jopto I/O Port Connector J8 JHW Handwheel Encoder Connector Page Pin # Symbol Function ACC-2P Connector PinoutsJ1 USB Universal Serial Bus Port Optional Pin Connector J7 Jopt I/O Port Connector Pin # Function J10 Ethernet Port Optional
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