Ametek DN VR-608 Series User manual

DNx-VR-608
User Manual
8-Channel Variable Reluctance Sensor Interface
for the PowerDNA Cube and RACK Series Chassis
February 2024
PN Man-DNx-VR-608
© Copyright 1998-2024 United Electronic Industries, Inc. All rights reserved.

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WARNING!
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Products sold by United Electronic Industries, Inc. are not authorized for use as critical components in
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DNx-VR-608 Variable Reluctance Interface i
Table of Contents
February 2024 www.ueidaq.com
508.921.4600
© Copyright 2024
United Electronic Industries, Inc.
Table of Contents
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Organization of this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Naming Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Related Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.5 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.6 DNx-VR-608 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6.1 Measurement Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6.2 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6.3 Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6.4 Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6.5 Environmental Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6.6 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.6.7 Software Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.7 Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 VR Sensor Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.1 Index Tooth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1.2 Torque Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 DNx-VR-608 Device Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.2 Zero Crossing Detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2.3 ADC Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2.4 Counter/Timer Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2.5 Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.2.6 Sync Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.3 Measurement Resolution and Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.3.1 Timed Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.3.2 N-Pulse Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.3.3 Timed Pulse Period Measurement Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.3.4 Torque Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.4 Indicators and Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.5 DNA Cube Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.6 Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.6.1 Loopback Test Wiring (Rev. 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 3 PowerDNA Explorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2 VR-608 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Chapter 4 Programming with the High-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1 About the High-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2 Example Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

DNx-VR-608 Variable Reluctance Interface ii
Table of Contents
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4.3 Create a Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4 Resource Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.5 Configure VR Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.5.1 Configure Analog VR Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.5.2 Configure Torque Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.5.3 Configure Digital Input (Rev. 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.5.4 Configure Digital Input (Rev. 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.6 Configure Digital Output Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.6.1 Generate Simulated VR Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.6.2 Route Source to Digital Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.6.3 Digital Output Dividers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.7 Configure Sync Out (Rev. 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.8 Configure the Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.9 Start the Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.10 Read Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.10.1 Read Velocity, Position, Tooth Count. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.10.2 Read Torque (Rev. 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.10.3 Read FIFO Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.10.4 Read ADC Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.10.5 Read Status Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.11 Stop the Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Chapter 5 Programming with the Low-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.1 About the Low-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.2 Example Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.3 Data Acquisition Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.4 Point-by-Point API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.4.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.4.2 Enable Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.4.3 Read Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
5.4.4 Read Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
5.4.5 Stop Cleanly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
5.5 RtDMap API. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Appendix A Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
A.1 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
A.2 Screw Terminal Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

DNx-VR-608 Variable Reluctance Interface iii
List of Figures
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List of Figures
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Chapter 2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-1 Variable Reluctance Sensor and Toothed Wheel........................................................8
2-2 Example VR Sensor Signals .......................................................................................9
2-3 Z-Tooth Types ...........................................................................................................10
2-4 Dual VR Sensor Torque Measurement......................................................................11
2-5 Simplified Block Diagram of the DNx-VR-608 ...........................................................12
2-6 Logic Block Diagram for a Dual VR IC Channel ........................................................14
2-7 Adaptive Peak Threshold (APT) from the MAX9926 Specification............................14
2-8 DNx-VR-608 Counter/Timer Module..........................................................................16
2-9 Photo of DNR-VR-608 Board ....................................................................................22
2-10 DNA-VR-608 Jumper Address Location ....................................................................22
2-11 Pinout Diagram of the DNx-VR-608...........................................................................23
2-12 Example Wiring for Torque Simulator Loopback .......................................................24
Chapter 3 PowerDNA Explorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3-1 PowerDNA Explorer for DNx-VR-608 ........................................................................26
Chapter 4 Programming with the High-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 5 Programming with the Low-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Appendix A Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
A-1 Pinout and Photo of DNA-STP-37 Screw Terminal Panel .........................................55

DNx-VR-608 Variable Reluctance Interface iv
List of Tables
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List of Tables
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 Specifications ...............................................................................................................7
Chapter 2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-1 Peak Threshold and Zero Crossing Modes ................................................................15
2-2 Counter/Timer Register Data......................................................................................17
2-3 DNx-VR-608 LED Indicators.......................................................................................22
2-4 DNx-VR-608 Pinout Descriptions ...............................................................................23
Chapter 3 PowerDNA Explorer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 4 Programming with the High-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4-1 High-level API for VR Channel Configuration.............................................................29
4-2 Digital Output Sources for UeiVRSimulatedModeStatic .............................................34
4-3 CUeiSimulatedVRChannel Methods for Digital Output Dividers.................................35
4-4 Sync Out Sources Supported by the CUeiVRSyncOutLine Class..............................35
4-5 VR Data returned by Read().......................................................................................37
4-6 Data read from FIFO ..................................................................................................38
4-7 ADC Status Register ..................................................................................................39
4-8 CUeiVRReader Status Methods................................................................................40
4-9 Bit Assignments for ReadAlarmStatus() .....................................................................41
Chapter 5 Programming with the Low-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5-1 Low-level DNx-VR-608 API Functions........................................................................44
5-2 Low-level API Configuration Parameters....................................................................45
5-3 DMap Channels..........................................................................................................53
Appendix A Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

DNx-VR-608 Variable Reluctance Interface
Chapter 1 1
Introduction
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Chapter 1 Introduction
This document outlines the feature-set of the DNx-VR-608 Variable Reluctance
Interface boards and their use in a wide variety of motion and rotation monitoring
applications.
The following sections are provided in this chapter:
•Organization of this Manual (Section 1.1)
•Manual Conventions (Section 1.2)
•Naming Conventions (Section 1.3)
•Related Resources (Section 1.4)
•Before You Begin (Section 1.5)
•DNx-VR-608 Features (Section 1.6)
•Technical Specification (Section 1.7)
1.1 Organization
of this Manual
This DNx-VR-608 User Manual is organized as follows:
• Introduction
Chapter 1 summarizes the features and specifications of the
DNx-VR-608.
• Functional Description
Chapter 2 describes the device architecture, logic, and connectivity of
the DNx-VR-608.
• PowerDNA Explorer
Chapter 3 shows how to explore DNx-VR-608 features through a
GUI-based application.
• Programming with the High-level API
Chapter 4 describes how to create a session, configure the session, and
interpret results with the UeiDaq Framework API.
• Programming with the Low-level API
Chapter 5 provides an overview of programming the DNx-VR-608 using
the low-level C API.
• Accessories
Appendix A provides a list of accessories available for use with the
DNx-VR-608.

DNx-VR-608 Variable Reluctance Interface
Chapter 1 2
Introduction
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1.2 Manual
Conventions
The following conventions are used throughout this manual:
Tips are designed to highlight quick ways to get the job done or to
reveal good ideas you might not discover on your own.
CAUTION! advises you of precautions to take to avoid injury, data
loss, and damage to your boards or a system crash.
NOTE: Notes alert you to important information.
1.3 Naming
Conventions
The DNA-VR-608, DNR-VR-608, and DNF-VR-608 board versions are
compatible with the UEI Cube, RACKtangle, and FLATRACK chassis
respectively. These boards are electronically identical and differ only in
mounting hardware. The DNA version stacks in a Cube chassis, while the DNR
and DNF versions plug into the backplane of a Rack chassis. Throughout this
manual, the term DNx-VR-608 refers to both Cube and Rack products.
1.4 Related
Resources
This manual only covers functionality specific to the DNx-VR-608. To get started
with the UEI IOM, please see the documentation included with the software
installation. On Windows, these resources can be found from the desktop by
clicking Start » All Programs » UEI
UEI’s website includes other user resources such as application notes, FAQs,
tutorials, and videos. In particular, the glossary of terms may be helpful when
reading through this manual: https://www.ueidaq.com/glossary
Additional questions? Please email UEI Support at [email protected] or
call 508-921-4600.
Typeface Description Example
bold field or button names Click Scan Network
» hierarchy to get to a specific menu item File » New
fixed source code to be entered verbatim session.CleanUp()
<brackets> placeholder for user-defined text pdna://<IP address>
italics path to a file or directory C:\Program Files

DNx-VR-608 Variable Reluctance Interface
Chapter 1 3
Introduction
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1.5 Before You
Begin
No Hot Swapping!
Before plugging any I/O connector into the Cube or RACKtangle, be sure to
remove power from all field wiring. Failure to do so may cause severe damage
to the equipment.
Check Your Firmware
Ensure that the firmware installed on the Cube or Rack CPU matches the UEI
software version installed on your PC. The IOM is shipped with pre-installed
firmware and a matching software installation. If you upgrade your software
installation, you must also update the firmware on your Cube or RACK CPU.
See “FirmwareUpdatingProcedures” for instructions on checking and updating
the firmware. These instructions are located in the following directories:
•On Linux: <PowerDNA-x.y.z>/docs
•On Windows:
Start » All Programs » UEI » PowerDNA » Documentation

DNx-VR-608 Variable Reluctance Interface
Chapter 1 4
Introduction
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1.6 DNx-VR-608
Features
DNx-VR-608 boards are 8-channel, variable reluctance (VR) sensor interface
boards. The DNA/DNR/DNF-VR-608 boards are electronically identical and
differ only in the hardware needed to mount the board in the selected chassis.
The board is designed for use in a wide variety of motion and rotation monitoring
applications. It can also be used as a general-purpose counter to measure AC
signals and TTL-level digital signals, including the output from a Hall Effect
sensor. This manual includes information for both Revision 1 and Revision 2
VR-608 boards.
Features of the DNx-VR-608 (Rev. 1 and Rev. 2) include:
•8 fully differential analog input channels
•Input range from 50 mV to 250 V peak-to-peak
•Bipolar (VR) inputs rates up to 300 kHz
•Unipolar (Hall/TTL) input rates up to 18 kHz
•Conditioned inputs can be routed to TTL digital outputs
•Adaptive Threshold input mode
•True zero-cross detection
•Inter-tooth timing allows acceleration tracking
•Open circuit detection
Additional features available on Rev. 2 boards only:
•4 isolated TTL digital inputs can be routed to internal counters
•Alarms for open circuit, stalled rotation, and overspeed conditions.
Alarms can be routed to digital outputs.
•Torque measurement for dual VR sensor systems
•Digital Hall Effect sensor simulator
•Timed Pulse Period Measurement (TPPM) Mode that features a
dynamic sampling window based on input frequency.
1.6.1 Measurement
Capabilities
The DNx-VR-608 contains eight differential analog input channels designed to
support an extremely wide variety of variable reluctance sensors. Sensor
compatibility is made possible by the board’s wide input range (50 mVpp to
250 Vpp) and high input impedance (40 kΩ). The board supports a maximum
pulse rate of 300 kHz for inputs ≥ 3.2 Vpp; measurable pulse rates for lower
signal levels are shown in Table 1-1.
Signal peaks and zero crossings may be configured for auto-detection. For
example, an “Adaptive Peak Threshold” (APT) mode sets the threshold to 30%
of a time-averaged input. A watchdog circuit resets the input to the minimum
threshold level if the input “drops out” for 85 milliseconds. Another APT mode
auto-computes the thresholds from the minimum and maximum voltages
measured by the board.
Users can also set zero crossing thresholds and peak thresholds to fixed voltage
levels for special use cases such as Hall Effect measurements and custom
signal conditioning applications.
Revision 2 boards provide four digital input channels for reading sensors which
already output a conditioned TTL-level signal. Digital inputs bypass the front-end
VR circuitry for a faster read rate.