Woodward AtlasPC Hardware Manual
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Woodward AtlasPC Hardware Manual

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Hardware Manual
AtlasPC™ Digital Control
Volume 1
Manual 85586 consists of 2 volumes (85586V1 & 85586V2).
Manual 85586V1 (Revision P)

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Summary of Contents for Woodward AtlasPC

  • Page 1 Hardware Manual AtlasPC™ Digital Control Volume 1 Manual 85586 consists of 2 volumes (85586V1 & 85586V2). Manual 85586V1 (Revision P)
  • Page 2 Revisions—Text changes are indicated by a black line alongside the text. Woodward Governor Company reserves the right to update any portion of this publication at any time. Information provided by Woodward Governor Company is believed to be correct and reliable. However, no responsibility is assumed by Woodward Governor Company unless otherwise expressly undertaken.

  • Page 3: Table Of Contents

    Manual 85586V1 AtlasPC Digital Control, Vol. I Contents Volume I contains all AtlasPC™ hardware information except the detailed Distributed I/O information, which is in Volume II........... LECTROSTATIC ISCHARGE WARENESS   1. G ............1  HAPTER ENERAL NFORMATION Introduction ......................1  ...
  • Page 4 AtlasPC Digital Control, Vol. I Manual 85586V1 Contents 8. P ............75  HAPTER OWER ENSE OARD General Description ....................75   Features ........................ 75   Physical ........................ 75   Hazardous Live ..................... 75   Specifications ......................79   PowerSense Board Operation ................82  ...
  • Page 5   Figure 6-20. Wiring Example–Alternate Multipoint Wiring ........57   Figure 7-1. AtlasPC Analog Combo Board Connections ........62   Figure 7-2. AtlasPC Analog Combo Board Block Diagram ........63   Figure 7-3. Minimum MPU Voltage ..............67   Woodward...
  • Page 6 Figure B-5. 12-Channel Relay Module Connections ..........117   Figure B-6. DLE Connections ................118   Figure D-1. Board Address Numbers ..............121   Table 1-1. AtlasPC Modules ................... 2   Table 2-1. Power Supply Requirements ............... 12   Table 4-1. Ethernet Port Pinout ................21  ...

  • Page 7: Electrostatic Discharge Awareness

    PCB from the control cabinet, place it in the antistatic protective bag. To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules.
  • Page 8 AtlasPC Digital Control, Vol. I Manual 85586V1 Woodward...

  • Page 9: Chapter 1. General Information

    The AtlasPC control is programmed to the specific needs of the prime mover and its driven load. At the heart of the AtlasPC control is a 32-bit microprocessor that runs a powerful Real Time Operating System. This operating system is specifically designed to control the proper timing of all application code so that dynamic performance of the final control system is absolutely guaranteed.

  • Page 10: Control Versions

    Manual 85586V1 Control Versions The AtlasPC control provides a flexible platform that can be structured into a wide variety of configurations of I/O and communications. The required number of I/O modules and the types of communication modules that are required will depend entirely on the specific application scenario.

  • Page 11: Control Accessories

    Regulatory Compliance The AtlasPC™ control is suitable for use in Class I, Division 2, Groups A, B, C, D, per UL for Canada and US or non-hazardous locations only. The AtlasPC control is suitable for use in European Zone 2, Group IIC environments when installed in an IP-54 minimum rated enclosure per DEMKO certification.

  • Page 12: Regulatory Compliance Specifications

    It is recommended that operation of such devices be kept more than 3 m from the AtlasPC control. This will prevent any degradation. Installation of the AtlasPC control in a metal enclosure will also prevent any degradation. Regulatory Compliance Specifications...

  • Page 13: Figure 1-2. Physical Dimensions

    Manual 85586V1 AtlasPC Digital Control, Vol. I Figure 1-2. Physical Dimensions (dimensions shown are in inches) Woodward...

  • Page 14: Chapter 2. Installation

    Check for signs of damage such as bent or dented panels, scratches, loose or broken parts. If any damage is found, immediately notify the shipper. The AtlasPC control was shipped from the factory in an anti-static foam lined carton. This carton should always be used for transport of the control when it is not installed.

  • Page 15: Environmental Specifications

    The AtlasPC Control Platform was tested to Lloyd’s Test Specification No. 1, 2002, Vibration Test 1 (5–13.2 Hz, ±1 mm; 13.2–100 Hz, ±0.7g). Audible Noise Emission The AtlasPC Control Platform does not emit an audible noise above 70 dBA as measured 1 meter away, with or without a fan. Enclosure Protection In order to meet Zone 2 European Group IIC, the AtlasPC Control must be mounted in an enclosure that meets or exceeds IP 54.

  • Page 16: Figure 2-1. Spring Clamp

    AtlasPC Digital Control, Vol. I Manual 85586V1 Most of the AtlasPC control’s terminal blocks are designed to be removed by hand. After AtlasPC input power is disconnected, the terminal blocks can be removed one at a time by pulling them straight out. Be careful not to pull the plug out at an angle, as this will fracture the end terminal.

  • Page 17: Grounding

    Common mode voltages may result in improper readings for the sensed ac inputs, or even damage to the AtlasPC control in extreme cases. To minimize this problem, it is necessary to provide a low resistance path between the ac signal reference point, and the chassis of the AtlasPC control.
  • Page 18 All other shield terminations except at the AtlasPC control should be ac coupled to earth through a capacitor. A 1000 pF, 500 V capacitor is sufficient. The intent is to provide a low impedance path to earth for the shield at frequencies of 150 kHz and up.

  • Page 19: Input Power

    Manual 85586V1 AtlasPC Digital Control, Vol. I Input Power The AtlasPC control requires a nominal voltage source of 18 to 32 Vdc. Input power requirements vary depending on the control version. Table 2-1 contains information for the maximum configuration. Power must be applied to the AtlasPC control at least 60 seconds prior to expected use.
  • Page 20 The use of properly sized UL class CC, J, T, G, RK1, or RK5 fuses meet the requirements for branch circuit protection. Do not connect more than one AtlasPC control to any one fuse. Use only the wire size specified in Table 2-1 or equivalent metric size which meets local code requirements. Time delay fuses should be used to prevent nuisance trips.

  • Page 21: Maintenance

    AtlasPC Digital Control, Vol. I Maintenance The only part of the AtlasPC control system that may require user maintenance is the cooling fan (Woodward part number 1886-439). In the event that the fan must be replaced, please use the following procedure to remove a faulty fan from the chassis: •...

  • Page 22: Chapter 3. Power Supply Boards

    Power Supply Boards General Description The AtlasPC power supply contains the power supply and twelve discrete output driver channels. The discrete outputs are low-side drivers having short circuit and thermal shutdown protection. The discrete output drivers are not isolated from each other, and are powered by an external +12 Vdc or +24 Vdc.

  • Page 23: Specifications

    Manual 85586V1 AtlasPC Digital Control, Vol. I 855-741B 02-11-21 Figure 3-1b. AtlasPC Power Supply Board (601-1008) Specifications Power Supply Input (Power Supply Board) Range 18–32 Vdc Input Current 2.7 A @ 24 Vdc 3.61 A @ 18 Vdc Input Power less than 65 W at 70 °C...

  • Page 24: Troubleshooting Guide

    (over 15 to 35 V range) Electric Shock The AtlasPC control platform shall not present an electrical shock hazard to the operator or maintenance personnel when used in a normal manner per the National Electrical Code Handbook, ANSI/NFPA 70 HANDBOOK-1990. Safety is ensured by certification through the safety agencies specified in the “Regulatory...

  • Page 25: Figure 3-2. Discrete Output Wiring Example

    Manual 85586V1 AtlasPC Digital Control, Vol. I 855 745 00 01 25 KDW Figure 3-2. Discrete Output Wiring Example (Discrete Output Interface Wiring to the Power Supply Board) Configuration Notes • Refer to Figure 3-2 for discrete output wiring. •...

  • Page 26: Chapter 4. Pentium Cpu Board

    Pentium CPU Board General Description Every AtlasPC control contains one CPU board: either the Pentium CPU board or the SmartCore board. The CPU board runs the application program automatically upon boot-up. The Pentium CPU board runs a real-time operating system.

  • Page 27: Cpu Interface Connections

    CPU Interface Connections The Pentium CPU supports 10/100 Ethernet and Serial communications. Each interface is cabled to the AtlasPC chassis through the use of "gland plates". These gland plates are also intended to support I/O connections to other I/O modules like Profibus. The connectors, pinouts, and interface requirements for the CPU communication ports are detailed in this section.

  • Page 28: Figure 4-1. Pentium Cpu Board Connections

    AtlasPC Digital Control, Vol. I Manual 85586V1 855-739 02-6-13 Figure 4-1. Pentium CPU Board Connections 10/100 Base-TX Ethernet An auto-switching 10/100 Base-TX RJ45 Ethernet connector is available for system use. This connection will be used for control configuration, data gathering, remote monitoring, maintenance, and networking of multiple controls.
  • Page 29 • RS-232–RS-422 Isolator/Converter • 9-pin D-sub Filter Pin Connector Kit (Woodward part number 8928-7034) A serial port Isolator/Converter must be properly installed, grounded, and powered prior to connection with the CPU. Once properly installed, it may be connected to the CPU or field device at any time.
  • Page 30 VxWorks®* operating system. If the AtlasPC control fails to boot with an HMI attached to the CPU COM 1 port, the accepted solution is to remove the COM1 cable before booting, and reconnect it following a successful boot.

  • Page 31: Chapter 5. Smartcore Board Without Actuators

    Manual 85586V1 AtlasPC Digital Control, Vol. I Chapter 5. SmartCore Board without Actuators General Description This chapter covers the SmartCore board without actuators, part number 5503-201. Each SmartCore board contains circuitry for two speed sensor inputs, four analog inputs, four analog outputs, 3 serial ports, and 16 discrete inputs. Each speed sensor input may be from a magnetic pick-up or from a proximity probe, each analog input may be 4–20 mA or 0–5 V, and two of the serial ports, may be...

  • Page 32: Figure 5-2. Smartcore Board Block Diagram

    Analog outputs have 12 bit resolution Physical The AtlasPC boards connect to each other through either the PC/104 bus connectors or the power bus connectors. All of the boards are held together and to the chassis, by screws. The SmartCore board is the size of two analog boards.

  • Page 33: Specifications

    Manual 85586V1 AtlasPC Digital Control, Vol. I Specifications Digital Speed Sensor Inputs Number of channels selectable as MPU or proximity probe, by terminal block wiring Input frequency 100—24 950 Hz Resolution dependent on frequency, 13 bit minimum at maximum speed Accuracy less than ±0.08% full scale from –40 to +85 °C internal temperature...

  • Page 34: Figure 5-3. Minimum Mpu Voltage Graph

    AtlasPC Digital Control, Vol. I Manual 85586V1 10000 15000 20000 25000 30000 Frequency (Hz) Figure 5-3. Minimum MPU Voltage Graph Analog Inputs Number of channels Input type 4–20 mA or 0–5 V Max. input current 25 mA ±5% if configured for 4–20 mA Max.

  • Page 35: Atlaspc Smartcore Board Operation

    24 Vdc isolated Max input voltage 28 Vdc Isolation voltage 500 Vac, all channels are isolated from the AtlasPC platform • For EMC compliance, the on-board, isolated, +24 Vdc supply is recommended for use as power to contacts, 100 mA maximum.

  • Page 36: Figure 5-4. Wiring Example-Mpu Interface To The Smartcore Board

    AtlasPC Digital Control, Vol. I Manual 85586V1 Speed Sensor Inputs The MPU and proximity probe inputs are read and the speed is provided to the application program. A derivative output is also provided. The speed sensor inputs are filtered by the SmartCore board, and the filter time constant is selectable at 8 milliseconds or 16 milliseconds.

  • Page 37: Figure 5-5. Wiring Example-Proximity Probe To The Smartcore Board

    Manual 85586V1 AtlasPC Digital Control, Vol. I Atlas Atlas Active Pickup Jumper Jumper Active Pickup PNP Type NPN Type Figure 5-5. Wiring Example–Proximity Probe to the SmartCore Board Configuration Notes • Refer to Figures 5-4 and 5-5 for speed sensor wiring.

  • Page 38: Figure 5-6A. Wiring Example-4-20 Ma Input Interface To The Smartcore Board

    AtlasPC Digital Control, Vol. I Manual 85586V1 Atlas 4-20 mA Transducer Self Powered Figure 5-6a. Wiring Example–4–20 mA Input Interface to the SmartCore Board (+) Loop Power Atlas 100 mA Fuse 4-20 mA Transducer Loop Powered (-) Loop Power Figure 5-6b. Wiring Example–4–20 mA Input Interface using External Loop...

  • Page 39: Figure 5-8. Wiring Example-Analog Output Interface To The Smartcore Board

    Manual 85586V1 AtlasPC Digital Control, Vol. I Configuration Notes • Refer to Figures 5-6 and 5-7 for analog input wiring. • All 4–20 mA inputs have an input impedance of 200 Ω. • When a 4–20 mA input is used, a terminal block jumper must be installed, per Figure 5-6.

  • Page 40: Figure 5-9. Wiring Example-Discrete Input Interface To The Smartcore Board

    AtlasPC Digital Control, Vol. I Manual 85586V1 Discrete Inputs The SmartCore board accepts 16 discrete inputs. Contact wetting voltage may be supplied by the SmartCore card. Optionally, an external 18–28 Vdc power source can be used to source the circuit wetting voltage.

  • Page 41: Figure 5-10. Serial #1-Rs-232 Pinouts

    Manual 85586V1 AtlasPC Digital Control, Vol. I Serial I/O The SmartCore board accepts three serial I/O connections. The first two ports are configurable for RS-232, RS-422, or RS-485. The last port is configurable for RS-232 only. RS-232 is specified to 50 feet (15 m), and RS-485 and RS-422 are specified to 4000 feet (1219 m).

  • Page 42: Figure 5-12. Serial #1-Rs-485 Pinouts

    AtlasPC Digital Control, Vol. I Manual 85586V1 Serial #1 - RS-485 Atlas RS 485 Transceiver Twisted Pair RS 485 Device Isolated Jumpers to use optional termination resistor Isolated Ground Figure 5-12. Serial #1–RS-485 Pinouts Serial #2 - RS-232 Atlas Isolated...

  • Page 43: Figure 5-14. Serial #2-Rs-422 Pinouts

    Manual 85586V1 AtlasPC Digital Control, Vol. I Serial #2 - RS-422 Atlas RS 422 Transceiver 422R 422T Twisted Pairs 422R 422T RS 422 Device Isolated Jumpers to use optional termination resistor Isolated Ground Figure 5-14. Serial #2–RS-422 Pinouts Serial #2 - RS-485...

  • Page 44: Figure 5-16. Serial #3-Rs-232 Pinouts

    AtlasPC Digital Control, Vol. I Manual 85586V1 Serial #3 - RS-232 Atlas Isolated RS 232C Null Transceiver Modem Cable Isolated Ground Figure 5-16. Serial #3–RS-232 Pinouts Figure 5-17. Wiring Example–RS-232 Interface to the SmartCore Board Figure 5-18. Wiring Example–RS-422 Interface to the SmartCore Board Figure 5-19.

  • Page 45: Figure 5-20. Wiring Example-Alternate Multipoint Wiring

    (SHLD) should be connected in at least one location. The last unit in the chain, and only the last unit, should be terminated with a resistor. The AtlasPC has resistors built in (TERM RES) for this purpose. This applies to both ends of the network.
  • Page 46 AtlasPC Digital Control, Vol. I Manual 85586V1 Fault Detection (Board Hardware) Each SmartCore board has a red fault LED that is turned on when the system is reset. During initialization of a board, which occurs after every CPU reset, the CPU turns the Fault LED on.

  • Page 47: Troubleshooting Guide

    • Check the software configuration to ensure that the input is configured properly. After verifying all of the above, the AtlasPC should be returned for service. Proximity Probes—If a proximity probe input is not functioning properly, verify the following: •...
  • Page 48 If the input is loop powered, ensure that power is provided externally, the Atlas control does not provide this power. After verifying all of the above, the AtlasPC should be returned for service. Analog Outputs If an analog output is not functioning properly, verify the following: •...
  • Page 49 • Check the software configuration to ensure that the input is configured properly. After verifying all of the above, the AtlasPC should be returned for service. Serial I/O If a serial port is not functioning properly, verify the following: •...

  • Page 50: Chapter 6. Smartcore Board With Actuators

    AtlasPC Digital Control, Vol. I Manual 85586V1 Chapter 6. SmartCore Board with Actuators General Description This chapter covers the SmartCore board with actuators, part number 5503-302. Each SmartCore board contains circuitry for two speed sensor inputs, six analog inputs, six analog outputs, 2 proportional actuator drivers, 3 serial ports, and 24 discrete inputs.

  • Page 51: Figure 6-2. Atlaspc Smartcore Board Block Diagram

    Analog outputs have 12 bit resolution Physical The AtlasPC boards connect to each other through either the PC/104 bus connectors, or the power bus connectors. All of the boards are held together and to the chassis, by screws. The SmartCore board is the size of two analog boards.

  • Page 52: Specifications

    AtlasPC Digital Control, Vol. I Manual 85586V1 Specifications Digital Speed Sensor Inputs Number of channels selectable as MPU or proximity probe, by terminal block wiring Input frequency 100—24 950 Hz Resolution dependent on frequency, 13 bit minimum at maximum speed Accuracy less than ±0.08% full scale from –40 to +85 °C internal temperature...
  • Page 53 Manual 85586V1 AtlasPC Digital Control, Vol. I Analog Inputs Number of channels Input type 4–20 mA or 0–5 V Max. input current 25 mA ±5% if configured for 4–20 mA Max. input voltage 5.0 V ±5% if configured for 0–5 V...
  • Page 54 24 Vdc isolated Max input voltage 28 Vdc Isolation voltage 500 Vac, all channels are isolated from the AtlasPC platform • For EMC compliance, the on-board, isolated, +24 Vdc supply is recommended for use as power to contacts, 100 mA maximum.

  • Page 55: Smartcore Board Operation

    Manual 85586V1 AtlasPC Digital Control, Vol. I SmartCore Board Operation This board includes no potentiometers and requires no field calibration. Speed Sensor Inputs The MPU and proximity probe inputs are read and the speed is provided to the application program. A derivative output is also provided. The speed sensor inputs are filtered by the SmartCore board, and the filter time constant is selectable at 8 milliseconds or 16 milliseconds.

  • Page 56: Figure 6-4. Wiring Example-Proximity Probe To The Smartcore Board

    AtlasPC Digital Control, Vol. I Manual 85586V1 A proximity probe may be used to sense very low speeds. With a proximity probe, speed can be sensed down to 0.5 Hz. When interfacing to open collector type proximity probes, a pull-up resistor is required between the supplied proximity probe voltage and the proximity probe input to the SmartCore board.

  • Page 57: Figure 6-5A. Wiring Example-4-20 Ma Input Interface To The Smartcore Board

    Manual 85586V1 AtlasPC Digital Control, Vol. I For a 4–20 mA input signal, the SmartCore board uses a 200 Ω resistor across the input. Atlas 4-20 mA Transducer Self Powered Figure 6-5a. Wiring Example–4–20 mA Input Interface to the SmartCore Board...

  • Page 58: Figure 6-7. Wiring Example-Analog Output Interface To The Smartcore Board

    AtlasPC Digital Control, Vol. I Manual 85586V1 Configuration Notes • Refer to Figures 6-5 and 6-6 for analog input wiring. • All 4-20 mA inputs have an input impedance of 200 Ω. • When a 4-20 mA input is used, a terminal block jumper must be installed, per Figure 6-5.

  • Page 59: Figure 6-8. Wiring Example-Actuator Output Interface To The Smartcore Board

    Manual 85586V1 AtlasPC Digital Control, Vol. I Actuator Outputs The proportional actuator driver outputs are 4–20 mA or 20-160 mA with a full scale range of 0–24 mA or 0-200 mA. The SmartCore board has two proportional actuator driver outputs, each output with source and return current readbacks.

  • Page 60: Figure 6-9. Wiring Example-Discrete Input Interface To The Smartcore Board

    AtlasPC Digital Control, Vol. I Manual 85586V1 Discrete Inputs The SmartCore board accepts 24 discrete inputs. Contact wetting voltage may be supplied by the SmartCore card. Optionally, an external 18–28 Vdc power source can be used to source the circuit wetting voltage.

  • Page 61: Figure 6-10. Serial #1-Rs-232 Pinouts

    Manual 85586V1 AtlasPC Digital Control, Vol. I Serial I/O The SmartCore board accepts three serial I/O connections. The first two ports are configurable for RS-232, RS-422, or RS-485. The last port is configurable for RS-232 only. RS-232 is specified to 50 feet (15 m), and RS-485 and RS-422 are specified to 4000 feet (1219 m).

  • Page 62: Figure 6-12. Serial #1-Rs-485 Pinouts

    AtlasPC Digital Control, Vol. I Manual 85586V1 Serial #1 - RS-485 Atlas RS 485 Transceiver Twisted Pair RS 485 Device Isolated Jumpers to use optional termination resistor Isolated Ground Figure 6-12. Serial #1–RS-485 Pinouts Serial #2 - RS-232 Atlas Isolated...

  • Page 63: Figure 6-14. Serial #2-Rs-422 Pinouts

    Manual 85586V1 AtlasPC Digital Control, Vol. I Serial #2 - RS-422 Atlas RS 422 Transceiver 422R 422T Twisted Pairs 422R 422T RS 422 Device Isolated Jumpers to use optional termination resistor Isolated Ground Figure 6-14. Serial #2–RS-422 Pinouts Serial #2 - RS-485...

  • Page 64: Figure 6-16. Serial #3-Rs-232 Pinouts

    AtlasPC Digital Control, Vol. I Manual 85586V1 Serial #3 - RS-232 Atlas Isolated RS 232C Null Transceiver Modem Cable Isolated Ground Figure 6-16. Serial #3–RS-232 Pinouts Figure 6-17. Wiring Example–RS-232 Interface to the SmartCore Board Figure 6-18. Wiring Example–RS-422 Interface to the SmartCore Board...

  • Page 65: Figure 6-19. Wiring Example-Rs-485 Interface To The Smartcore Board

    (SHLD) should be connected in at least one location. The last unit in the chain, and only the last unit, should be terminated with a resistor. The AtlasPC has resistors built in (TERM RES) for this purpose. The unit at each end of the network should be terminated.
  • Page 66 • The serial ports are individually isolated from each other, and from the rest of the AtlasPC control. The RS-422 and RS-485 specifications state that a ground wire is needed if there is no other ground path between units. The preferred method for isolated ports is to include a separate wire in the ground cable that connects the circuit grounds together.

  • Page 67: Troubleshooting Guide

    • Check the software configuration to ensure that the input is configured properly. After verifying all of the above, the AtlasPC should be returned for service. Proximity Probes—If a proximity probe input is not functioning properly, verify the following: •...
  • Page 68 If the input is loop powered, ensure that power is provided externally, the Atlas control does not provide this power. After verifying all of the above, the AtlasPC should be returned for service. Analog Outputs If an Analog output is not functioning properly, verify the following: •...
  • Page 69 • Check the software configuration to ensure that the input is configured properly. After verifying all of the above, the AtlasPC should be returned for service. Serial I/O If a serial port is not functioning properly, verify the following: •...

  • Page 70: Chapter 7. Analog Combo Board

    • Last 4 analog inputs are isolated as a group, from the other inputs, and from control common • A cold junction measurement is provided on the board 855-740 02-2-22 Figure 7-1. AtlasPC Analog Combo Board Connections Woodward...

  • Page 71: Specifications

    AtlasPC Digital Control, Vol. I Physical The AtlasPC Analog Combo board connects to the CPU board through the PC/104 bus. It does not connect to the AtlasPC power bus directly, it requires a SmartCore board for this purpose. Dualport PC/104 Interface...
  • Page 72 AtlasPC Digital Control, Vol. I Manual 85586V1 Common mode rejection –80 dB minimum for analog inputs –96 dB typical for analog inputs –110 dB minimum for thermocouple inputs –120 dB typical for thermocouple inputs Input common mode range  ± 11 V minimum Safe input common mode volt ...
  • Page 73 Open wire detection provided for thermocouples Isolation All input channels are isolated from the rest of the AtlasPC platform to 500 Vac, however they are not isolated from each other. The inputs are differential, with a high impedance between channels.
  • Page 74 1 ms Isolation All input channels are isolated from the rest of the AtlasPC platform to 500 Vdc, however inputs are not isolated from each other. • Loop power for the Analog inputs must be supplied by an external supply if needed.

  • Page 75: Figure 7-3. Minimum Mpu Voltage

    Manual 85586V1 AtlasPC Digital Control, Vol. I 10000 15000 20000 25000 30000 Frequency (Hz) Figure 7-3. Minimum MPU Voltage • A derivative output is provided. The inherent noise on this output, due to resolution, increases with frequency. At 1000 Hz, it can be as much as 2.5 Hz/sec.

  • Page 76: Atlaspc Analog Combo Board Operation

    AtlasPC Digital Control, Vol. I Manual 85586V1 AtlasPC Analog Combo Board Operation This board includes no potentiometers and requires no field calibration. Speed Sensor Inputs The MPU inputs are read and the speed is provided to the application program. A derivative output is also provided.

  • Page 77: Figure 7-5A. Wiring Example-Analog Input Interface

    RTD sense input should be tied to the negative side of the RTD, at the RTD. See the specifications section for supported thermocouple types. The cold junction sensor is provided on the AtlasPC Analog Combo board. If the actual cold junction in the field wiring occurs elsewhere, the temperature of that junction must be brought into the control as a thermocouple, RTD, or 4–20 mA input, and...

  • Page 78: Figure 7-5B. Wiring Example-Analog Input Interface With External Loop Power

    AtlasPC Digital Control, Vol. I Manual 85586V1 (+) Loop Power Atlas 100 mA Fuse 4-20 mA Transducer Loop Powered Analog Input #1 (-) Loop Power Figure 7-5b. Wiring Example–Analog Input Interface with External Loop Power Atlas 4-20 mA Transducer Loop...
  • Page 79 See the specifications section for supported thermocouple types. • The cold junction sensor is provided on the AtlasPC Analog Combo board. If the actual cold junction in the field wiring occurs elsewhere, the temperature of that junction must be brought into the control as a thermocouple, RTD, or 4–20 mA input, and the application software must be configured to use the...

  • Page 80: Figure 7-8. Wiring Example-Analog Output Interface

    AtlasPC Digital Control, Vol. I Manual 85586V1 Analog Outputs The Analog outputs are 4–20 mA with a full scale range of 0–24 mA. The Analog Combo board has four Analog outputs. Atlas On earlier versions of 4-20 mA the Analog Combo...

  • Page 81: Troubleshooting Guide

    • Check the software configuration to ensure that the input is configured properly; check the hertz to rpm ratio, and the maximum speed. After verifying all of the above, the AtlasPC should be returned for service. Woodward...
  • Page 82 Check the software configuration to ensure that the input is configured properly. Ensure that the proper RTD or thermocouple type is selected, if applicable. After verifying all of the above, the AtlasPC should be returned for service. Analog Outputs If an Analog output is not functioning properly, verify the following: •...

  • Page 83: Chapter 8. Powersense Board

    The AtlasPC PowerSense board connects to the CPU board through the PC/104 bus. It connects to the power supply, through the AtlasPC power bus. It requires a SmartCore board or a Pentium CPU board as a master controller. The master controller is responsible for all application level tasks such as protective relaying, load share, and controlling the voltage and speed bias outputs.

  • Page 84: Figure 8-1. Terminal Block Covers

    AtlasPC Digital Control, Vol. I Manual 85586V1 HIGH VOLTAGE—To prevent risk of electric shock, make sure that the terminal block covers are installed on the above inputs before operation (see Figure 8-1). Terminal Block Figure 8-1. Terminal Block Covers These inputs and outputs are provided with 500 V of dielectric isolation from chassis ground.

  • Page 85: Figure 8-2. Powersense Board Connections

    Manual 85586V1 AtlasPC Digital Control, Vol. I Figure 8-2. PowerSense Board Connections Woodward...

  • Page 86: Figure 8-3. Powersense Board Block Diagram

    AtlasPC Digital Control, Vol. I Manual 85586V1 PC/104 Interface Dualport RAM LON MIP/DPS PC/104 Interface LON Channel 1 Signals and decode logic memory Interface Transceiver Board Address Dip Switches Dualport RAM memory BDM Port Zero-phase crossing 5 MHz dectectors Crystal...

  • Page 87: Specifications

    Manual 85586V1 AtlasPC Digital Control, Vol. I Specifications Utility and Generator PT Voltage Inputs Input Voltage (Typical) 77, 120, 240/277 Vac, transducers externally powered. Max. Input Voltage 300 Vac Input Current 3 mA maximum Input Frequency 45—70 Hz Common Mode Voltage ±450 Vdc minimum...
  • Page 88 AtlasPC Digital Control, Vol. I Manual 85586V1 Speed Bias Output Number of channels Current output option 4–20 mA selected by software switch and wiring Max current output 25mA ±5% Voltage output options 0–5 V (5 V max ±5%), ±3 V (±3V limit ±5%), 500 Hz...
  • Page 89 Manual 85586V1 AtlasPC Digital Control, Vol. I TempDrift –40 to +85 °C Any 40 °C change (4–20 mA, FS = 25 mA) Typical (1σ): < 0.5% or 0.125 mA < 0.3% or 0.075 mA Max (3σ): < 1.2% or 0.30 mA <...

  • Page 90: Powersense Board Operation

    AtlasPC Digital Control, Vol. I Manual 85586V1 PowerSense Board Operation This board includes no potentiometers and requires no field calibration. A PowerSense board may be replaced with another board of the same part number without any physical adjustment. When the PowerSense card is used for synchronizing, the GAP application must be configured so that the timing is correct for the characteristics of the PTCT_ATL and SYNCHRO blocks.
  • Page 91 Manual 85586V1 AtlasPC Digital Control, Vol. I The hardware does not require three phases for voltage calculations, the application can configure the module for single phase, and all functionality will be modified accordingly. The single phase input that must be provided is the A phase.

  • Page 92: Figure 8-4. Wiring Example-Wye Connected System

    AtlasPC Digital Control, Vol. I Manual 85586V1 AtlasPC PH A PH B PH C Load Bus PH A PH B PH C VIS-152a 01-4-26 Figure 8-4. Wiring Example–Wye Connected System (PT Interface wired L-N to the PowerSense Board) Woodward...

  • Page 93: Figure 8-5. Wiring Example-Wye Connected System

    Manual 85586V1 AtlasPC Digital Control, Vol. I AtlasPC PH A PH B PH C Load Bus PH A PH B PH C VIS-152b 01-4-26 Figure 8-5. Wiring Example–Wye Connected System (wired L-N to PowerSense with potential transformers used to step the voltage...

  • Page 94: Figure 8-6. Example Wiring-Wye Connected System

    AtlasPC Digital Control, Vol. I Manual 85586V1 AtlasPC PH A PH B PH C Load Bus PH A PH B PH C VIS-152c 01-4-26 Figure 8-6. Example Wiring–Wye Connected System (wired L-L to PowerSense with potential transformers used to step the voltage down to a level within the capability of the PowerSense inputs;...

  • Page 95: Figure 8-7. Wiring Example-Delta Connected System

    Manual 85586V1 AtlasPC Digital Control, Vol. I AtlasPC PH A PH B PH C Load Bus PH A PH B PH C VIS-152d 01-4-26 Figure 8-7. Wiring Example–Delta Connected System (PT Interface wired L-L to the PowerSense Board) Woodward...

  • Page 96: Figure 8-8. Wiring Example-Delta Connected System

    AtlasPC Digital Control, Vol. I Manual 85586V1 AtlasPC PH A PH B PH C Load Bus PH A PH B PH C VIS-152-e 01-4-26 Figure 8-8. Wiring Example–Delta Connected System (wired L-L to PowerSense with potential transformers used to step the voltage down to a level within the capability of the PowerSense inputs;...
  • Page 97 Manual 85586V1 AtlasPC Digital Control, Vol. I Generator Current Inputs The CT inputs are designed to sense three phase current inputs. The ‘A’ phase current inputs of each set are used for phase calculations. The fundamental magnitude and phase information is calculated, in addition to the magnitude and phase of each harmonic.

  • Page 98: Power Calculations

    AtlasPC Digital Control, Vol. I Manual 85586V1 Power Calculations Individual and total watts, VARs, VA, and power factor inputs. A negative phase sequence voltage input and a THD voltage input are also provided. All power calculations implement algorithms in accordance with IEEE 1459-2000.

  • Page 99: Figure 8-9. Wiring Example-Ct Interface To The Powersense Board

    Manual 85586V1 AtlasPC Digital Control, Vol. I AtlasPC PH A PH B PH C Load Bus PH A PH B PH C VIS-152f 01-4-26 CT grounds optional Figure 8-9. Wiring Example–CT Interface to the PowerSense Board Woodward...

  • Page 100: Figure 8-10. Wiring Example-Ct Interface To The Powersense Board

    AtlasPC Digital Control, Vol. I Manual 85586V1 AtlasPC PH A PH B PH C Load Bus PH A PH B PH C VIS-152g 01-4-26 CT grounds optional Figure 8-10. Wiring Example–CT Interface to the PowerSense Board Woodward...

  • Page 101: Figure 8-11. Wiring Example-Speed Bias Output Interface

    Manual 85586V1 AtlasPC Digital Control, Vol. I Speed Bias Output The Speed Bias output is configurable for 4–20 mA with a full scale range of 0– 24 mA, or as a ±3 V, 0–5 V, or PWM voltage output. When used as a PWM output, the PWM frequency is 500 Hz.

  • Page 102: Figure 8-12. Wiring Example-Speed Bias Output Interface

    AtlasPC Digital Control, Vol. I Manual 85586V1 Atlas ±3, 0-5, PWM interface to speed control (isol) Figure 8-12. Wiring Example–Speed Bias Output Interface (to the PowerSense Board configured for ±3 V, 0–5 V, or PWM) Voltage Bias Output The Voltage Bias output is configurable for 4 - 20 mA with a full scale range of 0 - 24 mA, or as a ±1, ±3V, or ±9V voltage output.

  • Page 103: Figure 8-13. Wiring Example-Voltage Bias Output Interface

    Manual 85586V1 AtlasPC Digital Control, Vol. I Atlas +15 Vdc (isol) 4-20 mA interface to voltage regulator (isol) Figure 8-13. Wiring Example–Voltage Bias Output Interface (to the PowerSense Board configured for 4–20 mA) Atlas ±1, ±3, ±9, interface to voltage regulator (isol) Figure 8-14.

  • Page 104: Figure 8-15. Wiring Example-Lon Interface To The Powersense Board

    AtlasPC Digital Control, Vol. I Manual 85586V1 LON Channel The PowerSense board has one LON channel. Figure 8-15. Wiring Example–LON Interface to the PowerSense Board Configuration Notes • Refer to Figure 8-15 for LON channel wiring. • The LON network must be terminated with load terminating resistors.

  • Page 105: Troubleshooting Guide

    Verify the settings for wye or delta (L-N or L-L) match the actual wiring • Verify proper grounding. Incorrect grounding practices may cause inaccurate voltage readings. After verifying all of the above, the AtlasPC should be returned for service. CT Inputs If a CT input is not functioning properly, verify the following: •...
  • Page 106 • Check the software configuration to ensure that the output is configured properly. After verifying all of the above, the AtlasPC should be returned for service. LON Channel If the LON channel is not functioning properly, verify the following: •...

  • Page 107: Chapter 9. 12-Channel Relay Module

    The Atlas system has 12 relay drivers on the power supply board. For customers that do not wish to wire their own discrete relays, Woodward can provide an integrated 12-channel relay module with cable harness that is certified for use in ordinary, hazardous, and marine locations.

  • Page 108: Relay Information

    AtlasPC Digital Control, Vol. I Manual 85586V1 Relay Information Each relay has one set of normally open contacts and one set of normally closed contacts. The relay contact ratings are: 5 A at 28 Vdc resistive 0.1 A at 125 Vdc resistive...

  • Page 109: Figure 9-2. 12-Channel Relay Module Wiring Diagram

    Manual 85586V1 AtlasPC Digital Control, Vol. I Figure 9-2. 12-Channel Relay Module Wiring Diagram Woodward...

  • Page 110: Dle Serial Communications Board

    The Atlas system can be provided with a DLE serial communications board. The DLE board has six ports—three RS-422 ports for communication with Honeywell pressure transducer modules, and three RS-485 ports for use with Woodward LM series and EQ series drivers. All ports are special purpose and are not designed for general communication functions.

  • Page 111: Figure 10-2. Terminator Locations

    The wiring must be one continuous cable between nodes, and must meet the requirements of EIA RS-485 for 500 kbps except that Woodward recommends that the maximum cable lengths be cut in half because typical prime mover installations have high levels of electrical interference.
  • Page 112 42 to 44 and 41 to 43 32 to 34 and 31 to 33 Shielding Shielded cable is required between the AtlasPC and any other devices. Unshielded cables and improperly shielded cables will very likely lead to communication problems and unreliable control operation.

  • Page 113: Application Developer Information

    Manual 85586V1 AtlasPC Digital Control, Vol. I Some users may not use both the RS-422 and RS-485 ports in their application. In this case, one LED will stay on all the time. This only signifies that one side of the board is not being used. It is not a failure unless a flash code appears.

  • Page 114: Chapter 11. Service Options

    A Recognized Turbine Retrofitter (RTR) is an independent company that does both steam and gas turbine control retrofits and upgrades globally, and can provide the full line of Woodward systems and components for the retrofits and overhauls, long term service contracts, emergency repairs, etc.

  • Page 115: Woodward Factory Servicing Options

    Flat Rate Remanufacture: Flat Rate Remanufacture is very similar to the Flat Rate Repair option with the exception that the unit will be returned to you in “like- new” condition and carry with it the full standard Woodward product warranty (Woodward Product and Service Warranty 5-01-1205). This option is applicable to mechanical products only.

  • Page 116: Returning Equipment For Repair

    To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules.

  • Page 117: Engineering Services

    Manual 85586V1 AtlasPC Digital Control, Vol. I Engineering Services Woodward offers various Engineering Services for our products. For these services, you can contact us by telephone, by email, or through the Woodward website. • Technical Support • Product Training •...

  • Page 118: Technical Assistance

    Type of Fuel (gas, gaseous, steam, etc) Rating Application Control/Governor Information Please list all Woodward governors, actuators, and electronic controls in your system: Woodward Part Number and Revision Letter Control Description or Governor Type Serial Number Woodward Part Number and Revision Letter...

  • Page 119: Appendix A. Acronyms And Glossary Of Terms

    Manual 85586V1 AtlasPC Digital Control, Vol. I Appendix A. Acronyms and Glossary of Terms Acronyms Analog-to-Digital Converter American Wire Gauge (metric equivalent is mm²) The CE marking is a European proof of conformity and is also described as "passport" that allows manufacturers and exporters to circulate products freely within the EU.

  • Page 120: Glossary Of Terms

    Glossary of Terms AtlasPC™ Analog Combo board—An AtlasPC board with an analog format that connects to the AtlasPC SmartCore board or PowerNet board, through the PC/104 interface. It contains 15 analog inputs, 2 speed sensor inputs, and 2 Analog outputs.

  • Page 121: Appendix B. Wiring Diagrams

    Manual 85586V1 AtlasPC Digital Control, Vol. I Appendix B. Wiring Diagrams 855-742 02-11-21 Figure B-1. SmartCore Board without Actuators Connections Woodward...

  • Page 122: Figure B-2. Smartcore Board With Actuators Connections

    AtlasPC Digital Control, Vol. I Manual 85586V1 855-742A 02-6-17 Figure B-2. SmartCore Board with Actuators Connections Woodward...

  • Page 123: Figure B-3. Analog Combo Board Connections

    Manual 85586V1 AtlasPC Digital Control, Vol. I 855-740 02-2-22 Figure B-3. Analog Combo Board Connections Woodward...

  • Page 124: Figure B-4. Powersense Board Connections

    AtlasPC Digital Control, Vol. I Manual 85586V1 Figure B-4. PowerSense Board Connections Woodward...

  • Page 125: Figure B-5. 12-Channel Relay Module Connections

    Manual 85586V1 AtlasPC Digital Control, Vol. I Figure B-5. 12-Channel Relay Module Connections Woodward...

  • Page 126: Figure B-6. Dle Connections

    AtlasPC Digital Control, Vol. I Manual 85586V1 BOTTOM 855-766 02-8-20 Figure B-6. DLE Connections Woodward...

  • Page 127: Appendix C. Flash Codes

    Manual 85586V1 AtlasPC Digital Control, Vol. I Appendix C. Flash Codes Number of LED Flashes Failure Microprocessor failure Bus, address, any unexpected exception error Failure during RAM test Local watchdog timeout Failure during EE test Failure during FLASH programming or erasing...
  • Page 128 AtlasPC Digital Control, Vol. I Manual 85586V1 Number of LED Flashes Failure No failure, system OK Solid Module in initialization mode Hardware watchdog, CPU clock failure, reset fail Unexpected Exception Error RAM test failure EEPROM failure Kernel Watchdog Timeout System Error...

  • Page 129: Appendix D. Board Addresses

    Manual 85586V1 AtlasPC Digital Control, Vol. I Appendix D. Board Addresses Board address numbers are necessary in GAP to identify the location of each board. Below are the possible combinations. 855-768 02-07-22 Figure D-1. Board Address Numbers * When a DLE board is used, its address will always be 10. Boards above or below it are not affected since it is always located directly below the Pentium.
  • Page 130 AtlasPC Digital Control, Vol. I Manual 85586V1 Woodward...
  • Page 134 Email and Website—www.woodward.com Woodward has company-owned plants, subsidiaries, and branches, as well as authorized distributors and other authorized service and sales facilities throughout the world. Complete address / phone / fax / email information for all locations is available on our website.

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