Please record all model numbers and serial numbers of your
Magtrol equipment, along with the general purchase information.
The model number and serial number can be found on either
a silver identification plate or white label affixed to each unit.
Refer to these numbers whenever you communicate with a
Magtrol representative about this equipment.
Model Number: _____________________________
Serial Number: _____________________________
Purchase Date: _____________________________
Purchased From: _____________________________
While every precaution has been exercised in the compilation of this document to
ensure the accuracy of its contents, Magtrol, Inc. assumes no responsibility for errors or
omissions. Additionally, no liability is assumed for any damages that may result from the
use of the information contained within this publication.
LabVIEW™ is a trademark of National Instruments Corporation.
Microsoft® is a registered trademark of Microsoft Corporation.
National Instruments™ is a trademark of National Instruments Corporation.
Windows® is a registered trademark of Microsoft Corporation.
2nd Edition rev. L – January 2017
Safety Precautions
1. Make sure that all Magtrol dynamometers and electronic products are earth-grounded, to ensure
personal safety and proper operation.
2. Check line voltage before operating the DSP7000.
3. Make sure that dynamometers and motors under test are equipped with appropriate safety
guards.
i
Revisions To This Manual
The contents of this manual are subject to change without prior notice. Should revisions be necessary, updates to all
Magtrol User’s Manuals can be found at Magtrol’s web site at www.magtrol.com/support/manuals.htm.
Please compare the date of this manual with the revision date on the web site, then refer to the manual’s Table of
Revisions for any changes/updates that have been made since this edition.
REVISION DATE
2nd Edition revision L– January 2017
TABLE OF REVISIONS
DateEditionChangeSection(s)
01/05/172 nd Edition rev. LI/O Card specications updated.8.1
04/05/162 nd Edition rev. KTorque Commands updated.7.4.6
08/10/152 nd Edition rev. JUSB driver setup for Windows operating system updated.7.1.1
07/07/152 nd Edition rev. HInstallation instructions and commands updated
throughout chapter.
07/07/152 nd Edition rev. HSetting tare function instructions updated.6.7.1
07/07/152 nd Edition rev. HAlarm instuctions and commands updated throughout
chapter.
06-09-152 nd Edition rev. GFigure 2-12 RS-232 Interface drawing updated.2.4.4
06/19/142 nd Edition rev. FA/D Sample Rate changed from 7812.5 KHz to 7812.5 Hz. 10.3
Section updated for new rmware.
07/11/132 nd Edition rev. CNote added to Calibration Frequency procedure.9.3.4
07/03/132 nd Edition rev. BStep number 5 updated in Calibration Procedure of Digital
to Analog Converters.
07/03/132 nd Edition rev. BStep number 4 updated in Calibration Prodedure of
Analog to Digital Converters.
05/23/132 nd Edition rev. ACalibration procedure of Analog to Digital Converters
updated.
05/23/132 nd Edition rev. ADigital input and output added to specications.8.1
03/09/132 nd EditionTorque invert signal added.B.3.4
03/09/132 nd EditionPrcedure for setting the scale factor updated.10.2.1.1, 10.2.1.2,
03/14/121st Edition - rev. HOV,# command updated for both channels.7.4.7
01/12/121st Edition - rev. GSection 6.6 How to Set Preload Control and section 6.7
6.6, 6.7
How to Set and Reset Tare Function was added.
The ALC,# Alarm Command was added to section 7.4.1.
7.4.1, 7.4.7
The TS1, TS2, TR1 and TR2 Commands were added to
section 7.4.7.
01/09/121st Edition - rev. FDriver and Tera Term location changed to Magtrol Manual CD7.1.1, 7.1.2, 8.4.2
12/13/111st Edition - rev D“Open or 8 Volts” was changed to “Open collector” for pin
9 in section 8.1.2. Function was changed for ALR1,# and
ALR2,# in section 7.4.1.
12/06/111st Edition - rev CRPM vs PPR Chart added3.4
12/02/11/1st Edition - rev BSTAT command was updated in section 7.4.7 to include
ramp down, ramp up, and mode input. The OP command
was added in section 7.4.8.
11/14/111st Edition - rev AContact Rating changed from 1 amp, 24 VDC to 24 VDC,
1 amp max.
8.1.2, 7.4.1
7.4.7, 7.4.8
5.1.1, 8.1.2
iii
Table of Contents
SAFETY PRECAUTIONS ......................................................................................................................... I
REVISIONS TO THIS MANUAL ............................................................................................................... II
REVISION DATE ................................................................................................................................................................. II
TABLE OF REVISIONS ...................................................................................................................................................... II
TABLE OF CONTENTS .......................................................................................................................... IV
TABLE OF FIGURES .............................................................................................................................. IX
PREFACE ............................................................................................................................................... XII
PURPOSE OF THIS MANUAL ........................................................................................................................................XII
WHO SHOULD USE THIS MANUAL .............................................................................................................................XII
1.1 UNPACKING YOUR DSP7000 ..................................................................................................................................... 1
1.2 NEW FEATURES OF THE DSP7000 ........................................................................................................................... 1
1.3 DATA SHEET .................................................................................................................................................................2
2.1 FRONT PANEL ............................................................................................................................................................ 10
2.2 FRONT PANEL CONTROLS AND BUTTONS ......................................................................................................... 10
3.1 POWERING UP THE DSP7000 .................................................................................................................................. 19
3.1.2 Main Menu ..................................................................................................................................................... 20
3.4.1 TACH A .......................................................................................................................................................... 35
3.4.3 AI 1................................................................................................................................................................. 35
3.5 CONFIGURE COMMUNICATION ............................................................................................................................ 36
4.1 ABOUT THE PID LOOP ............................................................................................................................................. 37
4.1.1 P (Proportional Gain) ..................................................................................................................................... 37
4.1.2 I (Integral) ...................................................................................................................................................... 37
4.1.3 D (Derivative) ................................................................................................................................................. 37
4.2.1 How To Set P (Proportional Gain) Value ....................................................................................................... 37
4.2.2 How to Set I (Integral) Value .......................................................................................................................... 37
4.2.3 How to Set D (Derivative) Value .................................................................................................................... 37
4.3 SETTING THE CORRECT PID’S FOR YOUR MOTOR .......................................................................................... 38
4.3.1 Setting the PID with an Unknown Motor or System ..................................................................................... 38
4.3.2 Setting the PID for Torque Control ................................................................................................................ 38
4.3.3 Setting the PID for Speed Control ................................................................................................................. 41
4.3.4 Setting the PID for Ramp Down .................................................................................................................... 43
5. ALARM SYSTEM .............................................................................................................................. 45
5.1 GENERAL INFORMATION ....................................................................................................................................... 45
5.2 POWER ALARM ......................................................................................................................................................... 47
5.2.1 Instructions for Power Alarm Setup ............................................................................................................... 47
5.2.2 Power Alarm Action ....................................................................................................................................... 47
5.2.3 To Reset Power Alarm .................................................................................................................................... 48
5.3 GLOBAL POWER ALARM ........................................................................................................................................ 48
5.3.1 Instructions for Global Power Alarm Setup ................................................................................................... 48
5.3.2 Global Power Action ...................................................................................................................................... 49
5.3.3 to reset global power alarm ............................................................................................................................ 49
5.4 MAXIMUM SPEED ALARM .................................................................................................................................... 49
5.4.1 Instructions for Maximum Speed Alarm Setup .............................................................................................. 49
5.4.2 Maximum Speed Alarm Action ...................................................................................................................... 50
5.4.3 To Reset Maximum Speed Alarm .................................................................................................................. 50
5.5 MAXIMUM TORQUE ALARM ................................................................................................................................ 50
5.5.1 Instructions for Maximum Torque Alarm Setup ............................................................................................50
5.5.2 Maximum Torque Alarm Action .................................................................................................................... 51
5.5.3 To Reset Maximum Torque Alarm ................................................................................................................. 51
5.6 GLOBAL TORQUE ALARM ...................................................................................................................................... 52
5.6.1 Instructions for Global Torque Alarm Setup .................................................................................................. 52
5.6.2 Global Torque Action ..................................................................................................................................... 52
5.6.3 To Reset Global Torque Alarm ....................................................................................................................... 52
v
5.7 AIR FLOW ALARM .................................................................................................................................................... 52
5.7.1 Instructions for Air Flow Alarm Setup ........................................................................................................... 52
5.7.2 Air Flow Alarm Action ................................................................................................................................... 53
5.7.3 To Reset Air Flow Alarm ............................................................................................................................... 53
5.8 WATER FLOW ALARM ............................................................................................................................................. 54
5.8.1 Instructions for Water Flow Alarm Setup ....................................................................................................... 54
5.8.2 Water Flow Alarm Action .............................................................................................................................. 54
5.8.3 To Reset Water Flow Alarm ........................................................................................................................... 54
5.9.3 To Reset External Alarm ................................................................................................................................ 55
5.10 TEMPERATURE ALARM (WB/PB ONLY) .............................................................................................................. 56
5.10.1 Instructions for Temperature Alarm Setup ..................................................................................................... 56
5.10.2 Temperature Alarm Action ............................................................................................................................. 56
5.10.3 To Reset Temperature Alarm .......................................................................................................................... 56
6.1 HOW TO SET DESIRED POWER UNITS ................................................................................................................ 58
6.2 HOW TO SET DESIRED TORQUE UNITS .............................................................................................................. 58
6.3 HOW TO SET TORQUE CONTROL .......................................................................................................................... 59
6.4 HOW TO SET SPEED CONTROL .............................................................................................................................60
6.5 HOW TO SET OPEN LOOP CONTROL .................................................................................................................... 61
6.6 HOW TO SET PRELOAD CONTROL ....................................................................................................................... 61
6.7 HOW TO SET AND RESET TARE FUNCTION ........................................................................................................ 62
6.7.1 Setting the Tare Function ............................................................................................................................... 62
6.7.2 Resetting the Tare Function ............................................................................................................................ 62
6.8 HOW TO SET THE TM/TF INVERT FLAG .............................................................................................................. 63
7.1 ABOUT THE USB INTERFACE ................................................................................................................................ 64
7.1.1 USB Driver Setup for Windows Operation System ....................................................................................... 64
7.1.2 Checking the DSP7000-To-PC Connection for GPIB Setup .........................................................................70
7.2 DATA FORMAT ........................................................................................................................................................... 71
7.2.1 Output Data (OD) ........................................................................................................................................... 71
7.4.2 Communication Commands ........................................................................................................................... 76
8.2.2 About the GPIB Interface ............................................................................................................................... 94
8.2.3 Installing the GPIB (IEEE-488) Connector Cable ......................................................................................... 95
8.2.4 Changing the GPIB Primary Address ............................................................................................................ 95
8.3.3 Communication Parameters ........................................................................................................................... 98
8.4 CHECKING THE DSP7000-TO-PC CONNECTION ................................................................................................. 98
8.4.1 GPIB Communication check.......................................................................................................................... 98
8.4.2 RS232 Communication Check ..................................................................................................................... 101
9.3.2 Calibration of Analog to Digital Converters ................................................................................................ 108
9.3.3 Calibration of Digital to Analog Converters ................................................................................................ 109
9.3.4 Calibration Frequency .................................................................................................................................. 111
10. THEORY ........................................................................................................................................ 112
10.1 HOW THE PID LOOP WORKS ................................................................................................................................ 112
10.1.1 Scale Factors for Hysteresis, Eddy-Current and Powder Brake Dynamometers ......................................... 112
10.1.2 Speed Correction for WB (Eddy-Current Brake) Dynamometer ................................................................. 112
10.2.1 How To Set Additional Scale Factor ............................................................................................................113
B.2.3 Power Units .................................................................................................................................................. 124
B.2.4 Torque Units ................................................................................................................................................. 125
B.2.5 Max Speed .................................................................................................................................................... 125
B.2.6 Scale P .......................................................................................................................................................... 126
B.2.7 Scale I ........................................................................................................................................................... 127
B.2.8 Scale D ......................................................................................................................................................... 128
B.3 TEST INSTRUMENT SETUP ................................................................................................................................... 129
B.3.1 Hysteresis Dynamometer Setup Menu ......................................................................................................... 129
B.3.2 Eddy-Curennt Dynamometer Setup Menu ................................................................................................... 130
B.3.3 Powder Brake Dynamometer Setup Menu ................................................................................................... 131
B.3.4 Torque Transducer/Torque Flange Sensor Setup Menu ............................................................................... 132
C.2 DSP7000 ANALOG INPUTS .................................................................................................................................... 138
C.3 DSP7000 DIGITAL INPUTS ..................................................................................................................................... 139
C.4 DSP7000 ENCODER IN ............................................................................................................................................ 140
C.5 DSP7000 ANALOG OUTPUT................................................................................................................................... 141
C.6 DSP7000 DIGITAL OUTPUT ................................................................................................................................... 142
SERVICE INFORMATION .................................................................................................................... 144
RETURNING MAGTROL EQUIPMENT FOR REPAIR AND/OR CALIBRATION .................................................... 144
Returning Equipment to Magtrol, Inc. (United States) .............................................................................................. 144
Returning Equipment to Magtrol SA (Switzerland) ................................................................................................... 144
viii
Table of Figures
2. CONTROLS
Figure 2–1 Front Panel ............................................................................................................................................10
Figure 2–2 Secondary Function Menu ......................................................................................................................11
Figure 2–3 Saving Function Menu ............................................................................................................................11
Figure 2–9 USB Connector .......................................................................................................................................16
Figure 2–10 I/O Interface Card 1 and Card 2 ..........................................................................................................17
Figure 3–4 Main Menu .............................................................................................................................................20
Figure 3–5 Setup Menu ............................................................................................................................................21
Figure 3-6 Dyno Setup Menu ....................................................................................................................................21
Figure 3–7 Dynamometer Configuration Menu .........................................................................................................21
Figure 3–9 Hysteresis Setup Menu ...........................................................................................................................22
Figure 3–10 Hysteresis Dynamometer with Torque Transducer Setup .....................................................................23
Figure 3–11 Torque Transducer Setup Menu ............................................................................................................23
Figure 3–12 Hysteresis Dynamometer with Eddy-Current or Powder Brake Setup .................................................24
Figure 3–13 TSC2 Eddy-Current Setup Menu ..........................................................................................................24
Figure 3–14 TSC2 Powder Brake Setup Menu ..........................................................................................................25
Figure 3–15 Eddy-Current or Powder Brake Dynamometer Setup ..........................................................................25
Figure 3–16 TSC1 Eddy-Current Setup Menu ..........................................................................................................26
Figure 3-17 TSC1 Powder Brake Setup Menu ..........................................................................................................26
Figure 3–18 Eddy-Current or Powder Brake Dynamometer with Torque Transducer Setup ...................................27
Figure 3-19 TSC2 torque transducer setup menu .....................................................................................................27
Figure 3–20 Two Eddy-Current/Powder Brake Dynamometers (Independent Setup) ..............................................28
Figure 3-21 Tandem Setup Menu ..............................................................................................................................28
Figure 3–22 Tandem Configuration Menu ................................................................................................................29
Figure 3–22 Two Eddy-Current/Powder Brake Dynamometers (Tandem Setup) .....................................................29
Figure 3–24 Maximum Speed Excited Menu ............................................................................................................32
Figure 3-25 In-Line Torque Transducer with Brake .................................................................................................32
Figure 3–26 TSC1 Setup Menu .................................................................................................................................33
Figure 3–27 RPM vs PPR Chart ...............................................................................................................................34
Figure 3–28 Encoder Menu ......................................................................................................................................35
Figure 3–29 QUAD DEG Menu ................................................................................................................................35
Figure 3–30 AI 1 Menu .............................................................................................................................................36
Figure 3–31 System Setup Menu ................................................................................................................................36
ix
4. PID SETTINGS
Figure 4–1 Open Loop Control Menu .......................................................................................................................38
Figure 4–2 Initial P Setting for Torque Control at 25% ...........................................................................................39
Figure 4–3 High Initial P Setting for Torque Control .............................................................................................39
Figure 4–4 Initial I Setting for Torque Control .........................................................................................................40
Figure 4–5 Initial D Setting for Torque Control .......................................................................................................40
Figure 4–6 Initial P Setting for Speed Control at 25% ..............................................................................................41
Figure 4–7 Initial I Setting for Speed Control ..........................................................................................................42
Figure 4–8 Initial D Setting for Speed Control .........................................................................................................42
Figure 4–9 Ramp Down Low I ..................................................................................................................................43
Figure 4–10 Ramp Down High I ...............................................................................................................................44
Figure 4–11 Ramp Down Dynamic I ........................................................................................................................44
5. ALARM SYSTEM
Figure 5–1 Normal Condition “Energized Relay” ...................................................................................................45
Figure 5–4 Alarm Enable/Disable Menu ..................................................................................................................46
Figure 5–5 Max Power Menu ....................................................................................................................................47
Figure 5–6 Power -OL- Display ................................................................................................................................48
Figure 5–7 Power Alarm Display .............................................................................................................................48
Figure 5–8 Global Power Alarm Setup .....................................................................................................................48
Figure 5–9 Global Power Alarm Disply ...................................................................................................................49
Figure 6–1 Power Units Menu ..................................................................................................................................58
Figure 6–2 Torque Units Menu .................................................................................................................................58
Figure 6–3 Torque Control Menu ..............................................................................................................................59
Figure 6–4 Max Speed Menu ....................................................................................................................................60
Figure 6–5 Preload Function enabled ......................................................................................................................61
Figure 6–6 Tare function enabled ............................................................................................................................62
Figure 6–7 Torque Invert Flag Screen ......................................................................................................................63
7. COMPUTER CONTROLLED OPERATION
Figure 7–1 Setup Menu .............................................................................................................................................84
Figure 7–2 System Setup Menu .................................................................................................................................84
x
8. OPTIONAL EQUIPMENT
Figure 8–1 DSP7000 Top Cover ...............................................................................................................................86
Figure 8-5 Offset and Gain Setup Menu ...................................................................................................................90
Figure 8–30 Serial Port Setup Window ...................................................................................................................106
Figure 8–31 Tera Term Window with a Command ..................................................................................................106
10. THEORY
Figure 10–1 System Block Diagram........................................................................................................................112
Figure 10–2 Transposed Direct Form II Architecture .............................................................................................114
xi
PURPOSE OF THIS MANUAL
This manual contains all the information required for the installation and general use of the Model
DSP7000 Dynamometer Controller. To ensure proper use of the instrument, please read this manual
thoroughly before operating it. Keep the manual in a safe place for quick reference whenever a
question arises.
WHO SHOULD USE THIS MANUAL
This manual is intended for bench test operators who are going to use the Model DSP7000
Dynamometer Controller in conjunction with any Magtrol Hysteresis, Eddy-Current or Powder
Brake Dynamometer, Magtrol In-Line Torque Transducer or auxiliary instrumentation.
MANUAL ORGANIZATION
This section gives an overview of the structure of the manual and the information contained within it.
Some information has been deliberately repeated in different sections of the document to minimize
cross-referencing and to facilitate understanding through reiteration.
Preface
The structure of the manual is as follows:
Chapter 1: INTRODUCTION - Contains the technical data sheet for the DSP7000 Dynamometer
Controller, which describes the unit and provides its technical characteristics.
Chapter 2: CONTROLS - Description of the elements located on the front and rear panels of
the unit.
Chapter 3: INSTALLATION/CONFIGURATION - Provides setup options available with the
DSP7000 Dynamometer Controller. Illustrates and outlines the hardware connection
setup and software configurations for each option.
Chapter 4: PID SETTINGS - Describes the Proportional Integral Derivative (PID) Loop and
provides information on theory, setup and use.
Chapter 5: ALARM SYSTEM - Describes the new built-in alarm feature providing the user
with information on how each different alarm operates along with instructions for
setup and use.
Chapter 6: MANUALLY CONTROLLED OPERATION - How to run a test when the DSP7000
is used as a stand-alone unit. Includes information on setting power and torque
units, torque and speed control and open loop control.
Chapter 7: COMPUTER CONTROLLED OPERATION - How to run a test when the DSP7000
is used with a PC. Includes information on data format, programming and command
set.
Chapter 8: OPTIONAL EQUIPMENT - Information on the optional I/O cards, GPIB Interface,
RS-232 Interface,
Chapter 9: CALIBRATION - Provides recommended calibration schedules along with step-
by-step instructions for the calibration procedure.
xii
Magtrol Model DSP7000 Dynamometer Controller
Chapter 10: THEORY
Chapter 11: TROUBLESHOOTING - Solutions to common problems encountered during setup
and testing.
Appendix A: INERTIA CORRECTION - Describes the inertial effect on motor test data providing
solutions for correction.
Appendix B: FRONT PANEL/DISPLAY MENU FLOW CHARTS - A visual display of various
setup procedures.
Appendix C: SCHEMATICS - For Encoder/Switch Board, Power Supply, DSP & Memory and
The following symbols and type styles may be used in this manual to highlight certain parts of the
text:
Preface
Note: This is intended to draw the operator’s attention to complementary
information or advice relating to the subject being treated. It
introduces information enabling the correct and optimal functioning
of the product to be obtained.
direCtives, proCedures, etC. whiCh, ifignored, mayresultindamage
beingCausedtothematerialbeingused. theassoCiatedtext
desCribestheneCessarypreCautionstotakeandtheConsequenCes
thatmayariseifthepreCautionsareignored.
WARNING! THIS INTRODUCES DIRECTIVES, PROCEDURES,
PRECAUTIONARY MEASURES, ETC. WHICH MUST BE
EXECUTED OR FOLLOWED WITH THE UTMOST CARE
AND ATTENTION, OTHERWISE THE PERSONAL SAFETY
OF THE OPERATOR OR THIRD PARTIES MAY BE PUT
AT RISK. THE READER MUST ABSOLUTELY TAKE NOTE
OF THE ACCOMPANYING TEXT, AND ACT UPON IT,
BEFORE PROCEEDING FURTHER.
xiii
1. Introduction
1.1 UNPACKING YOUR DSP7000
Your DSP7000 was packaged carefully for shipping. Please notify your carrier and Magtrol Customer
Service if you believe your unit was damaged in shipping.
1. Save all shipping cartons and packaging material until you inspect the DSP7000.
2. Inspect the DSP7000 for any evidence of damage in shipping.
3. Make sure the carton contains the following:
DSP7000 Dynamometer Controller
INFORMATION
GENERAL
Line cord
Calibration Certificate
USB Cord
1.2 NEW FEATURES OF THE DSP7000
Magtrol’s new Model DSP7000 Dynamometer Controller is an upgraded version of the DSP6001,
providing superior motor testing capabilities by using state-of-the-art digital signal processing
technology. Designed for use with any Magtrol Hysteresis, Eddy-Current or Powder Brake
Dynamometer, Magtrol In-Line Torque Transducer or auxiliary instrumentation, the DSP7000 both
controls the dynamometer and provides digital readouts on the front panel. The features that make
the DSP7000 unique include:
electrical and temperature alarms programmed into the unit. Also inherent to the unit are
optional power, speed, torque, air flow, water flow and external input alarms that become
active when enabled by the user.
To enable the secondary function of the double-function control buttons:
1. Press the blue SHIFT button and release it. The word “SHIFT” appears in the display:
Figure 2–2 Secondary Function Menu
2. Press any control button to enable the function shown in blue letters above the button.
3. Press the SHIFT button again to exit the secondary function and return to main menu.
Note: If the brake status is ON, the SHIFT button will be ignored.
2.2.2
Enabling Saving Function
To save all current programmed settings:
1. Press the SHIFT button two times. The word “SAVING” will appear in the display, as shown
in Figure 2–3 Saving Function Menu.
INFORMATION
GENERAL
0.000 W
OFF
BRAKE STATUSSET POINTSET POINTPID
2. After a few seconds, the menu will automatically return to the main menu display and all
configurations of the unit will be saved into a non-volatile memory.
0.000 OZ.IN
0000
Figure 2–3 Saving Function Menu
0SAVING
0%
0%0%
11
Magtrol Model DSP7000 Dynamometer ControllerChapter 2 – Controls
2.2.3 Howto uSE Front PanEl controlSand buttonS
2.2.3.1 Controls/Single-Function Buttons
ButtonTo UseFunction
POWER Press I to turn power ON Press O
to turn power OFF.
SHIFTPress this button and release; then
press desired control button.
Press this button two times and
release.
DECREASE /
INCREASE DIAL
Turn clockwise or
counterclockwise.
INFORMATION
GENERAL
Turns power ON or OFF.
Enables the function written in blue
above control button.
Saves current conguration of unit
to non-volatile memory.
Increases or decreases the
parameter selected.
12
Magtrol Model DSP7000 Dynamometer Controller
Chapter 2 – Controls
2.2.3.2 Double-Function Buttons
ButtonTo UseFunction
DISPLAY BOTHPress SHIFT and release; then
press this button.
TSCPress this buttonSwitches between TSC1 and
SETUPPress SHIFT and release; then
press this button.
OPEN LOOPPress this buttonEnables Open Loop mode (if brake
POWER UNITSPress SHIFT and release; then
press this button.
BRAKE ON/OFFPress this button.Turns brake ON or OFF.
TORQUE UNITSPress SHIFT and release; then
press this button.
TORQUE SETPress this button.Enables adjustment of set point for
MAX SPEEDPress SHIFT and release; then
press this button.
SPEED SETPress this button.Enables adjustment of set point for
SCALE PPress SHIFT and release; then
press this button.
SCALE IPress SHIFT and release; then
press this button.
SCALE DPress SHIFT and release; then
press this button.
TARE/LEFT
RESET TARE/
RIGHT
Press SHIFT and release; then
press this button.
Press SHIFT and release; then
press this button.
INFORMATION
GENERAL
Displays both TSC1 and TSC2
measurments.
TSC2 setup.
Displays setup menu for
dynamometer, autotune, I/O,
system, and user.
is off).
Sets desired unit of power. Press
UP or DOWN button to see
options. Press SHIFT to enable
option.
Sets desired unit of measure.
Press UP or DOWN button
to see options. Press SHIFT to
enable option.
torque loading.
Sets the speed range of the
Controller.
speed loading.
Turns auxiliary/torque transducer
display ON or OFF. Enables
adjustment of scale factors for
torque and speed DAC’S.
Adjusts GPIB primary address and
RS-232 baud rate. Also adjusts
display contrast.
Provides options to set maximum
power, dynamometer settings
(input units, maximum torque and
scale factor), speed encoders and
alarms.
2.3 VACUUM FLUORESCENT DISPLAY (VFD)
The VFD provides information about the control functions, the motor under test, and an auxiliary
input device or In-Line Torque Transducer (if connected). The displays, from left to right, are:
13
Top RowBottom Row
POWERBRAKE STATUS (ON or OFF)
TORQUESET POINT (TORQUE)
SPEEDSET POINT (SPEED)
USER DISPLAY
2.3.1 contraSt SEttingS
The DSP7000 is shipped with the Contrast Setting at zero (lowest) in order to prolong display life.
If it is necessary to increase the Contrast for improved readability, execute the following steps:
1. Press SHIFT.
2. Press SETUP button.
3. Select SYSTEM
3. Select CONTR until desired brightness is reached.
4. Press SHIFT 2 times to return to main menu.
Note: Make sure the lowest possible setting is used to achieve desired
Magtrol Model DSP7000 Dynamometer ControllerChapter 2 – Controls
INFORMATION
GENERAL
P
I
D
result. Using a setting higher than necessary may cause display
segments to burn-in over a period of time, resulting in uneven
illumination from segment to segment.
2.3.2
StatuS diSPlay MESSagES
MessageMeaning
SHIFTShift button was pressed.
MAX SPEEDMaximum motor RPM.
UNITSTorque unit of measurement.
REMOTERemote control via PC enabled.
RAMP DOWNDecrease motor speed by increasing load on motor.
RAMP UPIncrease motor speed by decreasing load on motor.
SAVINGSaves current conguration of unit to non-volatlie memory.
RAMP DUDecrease motor speed and then increase motor speed
POWER UNITS
UNITSTorque units
14
Magtrol Model DSP7000 Dynamometer Controller
Chapter 2 – Controls
2.4 REAR PANEL
The rear panel provides connectors and receptacles for connecting to appropriate equipment.