Model 407 Controllerm

A Digitally-Supervised PIDF ServoController

Model 407 Advantages

Easy To UseIts no-nonsense user interface makes the Model 407Controller easy to use. An easy to read multiline display, anumeric keypad, and clearly labeled function buttons makeoperation simple and intuitive. All adjustments are made bya single programmable multiturn knob.

A Low-Cost AlternativeThe Model 407 Controller is a low-cost alternative toother, more powerful MTS controllers. It suits manyapplications that simply do not require the sophisticationand power provided by other controllers in the MTSfamily. However, it can be easily integrated with morepowerful equipment to serve your expanding needs.

CompatibleThe Model 407 Controller is fully compatible with mostexisting MTS test systems. In many cases, you can plug itinto your existing system and perform tests immediately.

PC ConnectivitySeveral Model 407 Controllers may be daisy-chainedtogether and controlled with user-friendly screens on apersonal computer running Microsoft Windows 95 orWindows NT. LabVIEW applications are available, or may be written, to provide exceptional testing functionality.

PortableThe compact size of the Model 407 makes it portable and easy to move and reconfigure. It can be used as a stand-alone controller, or configured as part of a group of controllers.

Digitally-Supervised PIDF Servo ControlAll servo-control functions are digitally supervised toprovide high performance and precise adjustment andrepeatability.

Tailor It To Your NeedsPlug-in modules can be installed in each Model 407Controller to tailor it to your testing needs. These include AC and DC transducer conditioner modules, a PC communications module, and a choice of either a two-stage or three-stage valve driver module.

Built-In Function GeneratorThe built-in function generator provides sine, square,ramp, and triangle waveforms. An external signal input is provided to receive externally generated complexwaveforms. An optional, amplitude control compensationpackage is available to assure end levels are achieved.

Complete Hydraulic Pressure ControlThe Model 407 Controller provides complete control ofthe test system hydraulics. This includes first-on/last-offcontrol of the hydraulic power supply in systemscontaining multiple controllers.

Digital Input/Output ChannelsUser-configurable digital inputs and outputs are availablefor monitoring and controlling external events.

The MTS Model 407 Controller is a digitallysupervised PIDF servo controller that providescomplete control of a single channel or station in amechanical testing system. This includes AC and DCtransducer conditioning, function generation (withthe capability to accept externally generatedcommand signals), servovalve drive signal generation,and hydraulic pressure control. In addition, multipleModel 407 Controllers can be interconnected toaccommodate multiple-channel testing and can bequickly configured to accommodate a variety of tests.

All Model 407 Controller functions are accessedvia a convenient, easy-to-use front panel design.Plug-in modules and easily accessible electricalconnections let you quickly connect and configurethe controller to match your test needs. Anoptional PC communications plug-in module evenlets you command the controller remotely withsoftware based on the LabVIEW platform via an RS-232 link to your personal computer.

Also available as an option is an AmplitudeControl compensation program that will assure end levels are achieved in your cyclic tests.

Compatibility

The Model 407 Controller is compatible with mostmechanical testing equipment. It can be used toreplace an existing MTS or competitor’s controllerand is also compatible with other MTS technologysuch as T/RAC™ and any version of RPC®. Its auto-sourcing power supply automatically adjusts itselffor use with any voltage source from 85 to 250 VAC.

A Simple, Easy-To-Use ControllerFor Single-Channel Tests

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3

All phases of operation are controlled through theModel 407 front panel. An easy-to-read, multilinedisplay shows the status of the parameter currentlybeing adjusted or monitored. A simple scroll-through menu provides quick access to anyparameter or function. All parameters are enteredthrough a simple keypad or adjusted by a singlemultiturn knob. Parameters are displayed in anyengineering unit that you select.

Besides providing the means to adjust andmonitor the test parameters, the front panel alsoprovides program control, system hydraulic pres-sure control, and a hard-wired emergency stop

The Model 407 Front Panel: Easy Access to All Control Functions

button that shuts down the system hydraulics in anemergency situation. BNC monitor jacks are alsoprovided to allow you to make quick connectionsto external readout devices.

An internal Digital Volt Meter (DVM) can bechecked at any time during controller operation. Itallows you to simultaneously monitor two differentparameters plus the preset and current cycle counts.Parameters that can be read by the DVM includeconditioner signals (output levels, peak/valley andmax/min), error signals (error level, peak/valley andmax/min), and valve signals (command, peak/valleyand max/min).

A simple scroll-through menu

provides quick access to any

parameter or function.

Clearly labeled function buttons

and a numeric keypad make

operation simple.

BNC monitor

jacks provide

quick connec-

tion to exter-

nal readout

devices.

System

hydraulics

control.

Emergency

stop button

shuts down

system

hydraulics.

Test

program

control.

Parameters are

easily adjusted

via this single,

programmable

knob.

4

The Model 407 Back Panel: Easy to Connect and Configure for Your Test

Internal signals can be monitored throughconnectors on both the front and rear of the Model407 Controller. Two BNC connectors are presenton the controller front panel. In addition, each plug-

Signal Monitoring

in module has a BNC connector available at the rear of the controller. The signal present at eachconnector is selected through the user interface.

Data display menus are automatically configuredto accommodate the types of modules present. Allmodules provide 15-pin D-type cable connectorsfor compatibility with other MTS electronics.

The Model 407 Controller also providesadjustable error detector, upper/lower limit, andunderpeak detector interlocks for each installedconditioner module. Interlocks can be daisy-chained in multiple controller configurations.

The Model 407 Controller features a modular backpanel design that makes it easy to connect to yourtest system and configure to your requirements. It can accept up to three modular transducerconditioners and one valve driver. Both AC and DCtransducer conditioners are available and can beinstalled in any combination. Valve driver modulesare available to accommodate either two-stage orthree-stage servovalves.

Plug-in modules for one valve

driver and up to three AC or

DC transducer conditioners

Connectors for

daisy-chaining inter-

locks & hydraulics

Power supply automati-

cally adjusts for use with

85 to 250 VAC source

Connectors for

hydraulic pump

interface and

emergency stop

BNC jacks for

connecting external

program source or

other 407s

Module for serial

communications

option

User-defined

digital input

and output

connections

5

A function generator (with a built-in cycle counter)is contained in the 407 Controller to provide sine,square, triangle, and single ramp commandwaveforms. For tests requiring complex waveforms,the Model 407 includes an external command input

Function Generation

The Model 407 Controller provides completecontrol of the test system hydraulics. The Model407 can be used to control a hydraulic powersupply and/or a hydraulic service manifold to applylow and high hydraulic pressure to the test system.The Model 407 can be used with either solenoidcontrolled (on/off) or proportional type hydraulic

Hydraulic Pressure Control

to receive externally generated commands.The function generator waveform can be

output to another Model 407 Controller (or anyexternal device) for synchronization or it can besynchronized to an external device.

Amplitude control is an optional compensationprogram that assures that commanded end levels(peaks and valleys) are achieved in a cyclic test. It tracks the feedback signal from a test andautomatically adjusts the amplitude and set pointcontrols on the Model 407 until desired end levelsand mean are achieved. It does this continuously,assuring that all levels are within tolerance.

Amplitude Control is beneficial in cyclic testsunder load control where test system or specimen

Amplitude Control (Optional)

characteristics may vary over time. Its unique, dual-mode control capability makes it especially usefulfor tests where load control is difficult to achieve.The amplitude control can be selected to operateeither the mean (set point) or amplitude (peak-valley, as in acceleration) or both the mean andamplitude at the same time. Amplitude controlworks with internally or externally generated sineand triangular waveforms, over a frequency rangeof 1.0 to 100 Hz.

service manifolds. It is also compatible withhydraulic power supplies that have either 24 VDCor, with an optional interface, line voltage controlcircuitry. In multiple controller configurations, theModel 407 provides first-on/last-off control of thehydraulic power supply in addition to control of alocal hydraulic service manifold.

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Serial communications is an optional, plug-inmodule that allows the Model 407 to be operatedremotely from a personal computer or workstationvia standard RS-232 or RS-485 communicationports. Up to 32 MTS Model 407 Controllers can beconnected in the same communications chain.Cable lengths from the first to the last chassis canbe up to 300 feet.

Sophisticated external applications can be writtenthat use the serial communications link for testautomation. Any environment that provides accessto the computer’s serial port, such as LabVIEW orVisual Basic,can be used for programming. MTS

PC Serial Communications (Optional)

supplies a complete set of high-level LabVIEWapplications for your immediate use; some examplesof the screens are shown here. A complete set ofLabVIEW low-level drivers is also included so thatyou can custom build high-level applications to runyour specific tests.

Serial communications can be used for remote testmonitoring or for test storage and retrieval via yourpersonal computer. After a test is set up, allparameters in the controller can be uploaded to thePC and saved to disk. Later, the setup can be down-loaded to the Model 407, thus ensuring an identicaltest setup and saving time.

Typical LabVIEW screens

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Typical LabVIEW screens

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Model 407 Controller Specifications

Parameter Specification

Physical

Height 5.2 in. (132 mm)

Width 8.8 in. (224 mm)

Depth 16.5 in. (419 mm)

Weight 17 lbs. (7.7 kg)

Environmental

Ambient temperature 10°C (50°F) to 40°C (104°F)

Relative humidity 0 to 85%, noncondensing

Power Supply

Line voltage 85 to 250 VAC (operation), 90 VAC min. undistorted sine (startup)

Line transient immunity Meets IEC 801-4, level 4

Line frequency 47 to 440 Hz

Inrush current 10 A max, 5 A pk typical @ 115 VAC

Operating power 125 W max, 75 W typical

Controller

Proportional range 0 to 100 V/V

Integrator range 0 to 100 rps

Differentiator range 0 to 40 ms

Feed-forward range 0 to 40 ms

Limit Detectors

Conditioner limit range ±15 V or 150% of range

Conditioner limit resolution 7.3 mV

Error limit range 0 to 15 V or 150% of range

Error limit resolution 3.7 mV

Underpeak detector range ±15 V

Underpeak detector resolution 10 mV

Peak detector accuracy 0.5% of F.S. (50 mV)

Peak detector input frequency 50 Hz max

Function Generator

Waveforms Sine, square, triangle, ramp, external input

Amplitude accuracy 0.1% of F.S. (10mV)

Sine distortion 0.5% max THD

Frequency range 0.1 to 100 Hz

Frequency resolution 0.01 Hz

Frequency accuracy 5%

Ramp rates 9.31 e-6 to 150% per second

Ramp resolution 0.00305% of selected FS ramp

Start mode Soft start with adjustable ramp rate

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Parameter Specification

HPS

Input power 26 V @ 10 mA max

Outputs Start, Low, High

Inputs On, Intlk1, Intlk2

Option High current and line voltage control is possible using the Model 493.07 interface

DVM

Screen update rate ≈0.3 s

Range ≈-11 V to +11 V

Resolution 1.3 mV (14 bits)

Accuracy 0.3% of reading or 5 mV (whichever is greater)

Peak-detector Accuracy 1.0% of reading or 50mV (0.1 to 95 Hz)

User DIO

Contact outputs Max switched current = 3 AMax switched power = 100 WMax switched voltage = 30 VDC or 120 VAC

Optical inputs VIL = 2 V maxVIH = 10 V minVin = 30 V w/o damageRin = 1.8 KΩ

Model 407.12 DC Conditioner

Differential DC excitation:

Range 0 to 20 V differential (programmable)

Resolution 5 mV min

Current 100 mA max

Compatible transducer bridge range 120 to 1000Ω (de-rated excitation under 200Ω)

Zero:

Coarse zero range -5 to +5 V (before postamp)

Fine zero range -2 to +2 V

Supported transducer configurations 4- through 9-wire full bridges (configurable),half bridge (configurable completion resistors),quarter bridge (configurable completion resistors)

Amplifier:

Input impedance 1 MΩ min

CMRR 100 dB min DC to 100 Hz (gain = 500) 350 Ω with 1% imbalance

Preamp gain ranges 1, 8, 64, and 512 V/V

Postamp gain range 0 to 10 V/V

Postamp gain resolution 0.0025 V/V

Noise 2 mV p-p max, DC to 500 Hz (gain = 500)

Calibration check modes Shunt calibration (rear panel or external shunt resistor)

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Parameter Specification

Model 407.14 AC Conditioner

Differential AC excitation:

Voltage range 0 to 40 Vp-p

Resolution 10 mV

Frequency 10 kHz standard (1.25, 2.5, 5.0 10 jumper selectable)

Amplifier:

Input impedance 1 MΩ min

CMRR 95 dB typical from DC to 60 Hz (350 Ω with 1% imbalance),60 dB typical at 10 kHz (gain = 1)

Preamp gain ranges 1 and 8

Postamp gain range 0 to 10 (adjustable)

Noise 2 mVp-p max (DC to 500 Hz, G = 10)

Zero:

Coarse zero range -5 to +5 V (before post amp)

Fine zero range -2 to +2 V

Model 407.16 Valve Driver

Dither:

Frequency 500, ±50 Hz (standard), selectable by resistor change

Amplitude range 0 to 20% (peak-to-peak) of full-scale current (adjustable). 20% setting = +10% to -10% with valve balance set to 0%

Amplitude resolution 0.005% of full scale

Valve balance range -20 to +20% of full-scale current

Valve clamping zero, +50%, -50% (configurable)

Output current 50 mA standard (10 - 100 mA resistor selectable)

Model 407 Controller Specifications (cont.)

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Parameter Specification

Physical

Height 4.6 in. (117 mm)

Width 0.75 in. (19 mm)

Depth 8.7 in. (220 mm)

Weight 0.5 lb.

Environmental

Ambient temperature 10°C (50°F) to 40°C (104°F)

Relative humidity 0 to 85%, non-condensing

Power Requirements

Supply voltage/current +5 VDC ± 250 mV, @ 2 A maximum (1 A typical)

407.36 Communications Module Specifications

Specifications are subject to change without notice. Contact MTS Systems Corporation for specifications critical to your needs.

MTS and RPC are registered trademarks, and T/RAC is a trademark of MTS Systems Corporation. LabVIEW is a registered trademark of National InstrumentsCorporation. Microsoft, Windows, Windows NT, and Visual Basic are registered trademarks of Microsoft Corporation.

m

MTS Systems Corporation14000 Technology DriveEden Prairie, MN 55344-2290

ISO 9001 CERTIFIED300200-01/407 Controller-02 PRINTED IN U.S.A. 498

©1998 MTS SYSTEMS CORPORATION

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