QNET DCMCT DC Motor Control Trainer (DCMCT) User Manual
Contents
1. to complete the DC Motor Control Trainer laboratory PC equipped with an NI E Series or NI M Series data acquisition card connected to an NI ELVIS station Quanser QNET 010 DC Motor Control Trainer DCMCT module ELVIS CD installed for required drivers LabView 7 1 with the following add ons installed Control Design Toolkit Simulation Module 3 References 1 NI ELVIS User Manual 3 QNET Experiment 01 DC Motor Speed Control 2 QNET LabView Controllers 4 ONET Experiment 02 DC Motor Position Control 4 DCMCT Plant Presentation 4 1 Component Nomenclature As a quick nomenclature Table 1 below provides a list of the principal elements composing the DC Motor Control Trainer DCMCT system Every element is located and identified through a unique identification ID number on the DCMCT plant represented in Figure 1 Revision 02 Page 1 QNET DCMCT User Manual ID Description ID Description 1 DC Motor 3 DC Motor Case 2 Motor Encoder 4 Disc Load Table 1 DCMCT Component Nomenclature WADIA ROTTS OY 4 t Figure 1 DCMCT Components 4 2 DCMCT Plant Description The DCMCT system consists of a DC motor equipped with a servo motor driving a disc load The on board amplifier that drives the motor on the module is powered by an independent 24V DC power supply The motor input is a voltage with a range of 24V The motor has an encoder that measures its position a digital tachometer that measures its spe2. workstation The Prototyping Board LED on the ELVIS front panel should turn bright green see Figure 4 and the bulk power LED labeled as B on the QNET module board should be bright green as well as shown in Figure 3 The on MANUAL e VARIABLE POWER SUPPLIES SUPPLY SUPPLY MANUAL O VOLTAGE VOLTAGE board amplifier that drives the motor is now powered Turn OFF the Prototyping Board switch if the DC motor begins to turn Any voltage applied by analog output channels 0 and 1 is amplified and delivered to the motor Take extra care when powering the QNET module to avoid causing any damage to the motor Step 11 The hardware setup is complete and you are now ready to load a given LabView virtual instrument and interact with the ONET module 5 2 DCMCT LabView Controllers There are two Quanser LabView Virtual Instruments supplied with the QNET DCMCT module QNET_DCMCT_Lab_01_Speed_Control vi QNET_DCMCT Lab 02 Position Control vi The first Quanser LabView simulates and implements DC motor speed control and its associated laboratory manual is ONET Experiment 401 DC Motor Speed Control The second Quanser LabView VI simulates and implements a position controller for the DC motor and its corresponding laboratory manual is QNET Experiment 02 DC Motor Position Control See QNET LabView Controllers guide for a general explanation on the challenges involved in the DC motor speed and position control l
3. DCMCT User Manual Step 3 Connect the AC DC wall transformer supplied with the ELVIS system to the corresponding input on the back panel of the NI ELVIS Benchtop Workstation Step 4 Connect the power cord to the AC DC transformer and plug the power cord into the wall outlet Step 5 Similarly to power the QNET module connect the AC DC wall transformer that was provided with the QNET module to its bulk power jack as shown in Figure 3 Figure 3 Module Power Step 6 Connect the power cord to the QNET wall transformer and plug the power cord into the wall outlet Step 7 Before powering up the system ensure the Prototyping Board Power switch is set to the OFF position and the Communications switch is set to the BYPASS mode Step 8 Power the NI ELVIS Benchtop Workstation by turning the Standby Switch on the rear panel of the system to ON Step 9 The System Power and Communications LEDs situated on the front panel of the NI ELVIS unit as shown in Figure 4 should be lit As depicted in Figure 3 verify also that the 15V 15V and 5V LEDs on the QNET module are lit They indicate that the board has been properly connected to the ELVIS unit Revision 02 Page 4 QNET DCMCT User Manual NATIONAL TO INSTRUMENTS system POWER COMMUNICATIONS PROTOTYPING BOARD POWER BYPASS E Figure 4 ELVIS Front Panel Power Switch Step 10 Turn ON the Prototyping Board Power switch on the front panel of the NI ELVIS
4. Quanser NI EL VIS Trainer QNET Series QNET DCMCT DC Motor Control Trainer DCMCT User Manual t 6 o 6 5 O o _ QUANBER NIELS TRAINER e ER 5 WWW QUANBER COM i i User Manual QNET DCMCT User Manual Table of Contents A A haner laa rss ger a e seeder ledt ON ra sed EDER ds 2 Requirements 3 References A A hane eres ea E TERESE 4 DEMCT Plant Presenta Oi ic 414 omponent Nomenc aaa 42 DCUMC TP Plant De As ae eee 3100 Motor Control Trainer UP ado 5 1 ELVIS and DCMCT Module Setup Procedure 5 2 DCMCT LabView Controllers Revision 02 Page QNET DCMCT User Manual 1 Introduction The Quanser National Instruments Engineering Trainer QNET is a versatile and powerful training tool Amongst its many capabilities the QNET series of trainers allows for PC based control using the LABVIEW programming language a National Instruments E Series or M Series data acquisition card and an ELVIS workstation The QNET allows for a scalable laboratory setup utilizing the ELVIS workstation platform The DC Motor Control Trainer DCMCT QNET module is designed to operate on the NI ELVIS platform The ELVIS unit is connected to an NI E Series or M Series data acquisition card inside the PC The Labview program interacts with the data acquisition card to read three inputs encoder tachometer and current sensor and control the output voltage to the motor 2 Requirements The following system is required
5. aboratories Revision 02 Page 5
6. ed and a current sensor to measure the actual current being fed into the motor Revision 02 Page 2 QNET DCMCT User Manual 5 DC Motor Control Trainer Setup Section 5 1 explains how to setup the DEMCT module on the ELVIS unit and properly ini tialize the system The LabView controllers associated with the DCMCT QNET module are overviewed in Section 5 2 5 1 ELVIS and DCMCT Module Setup Procedure The QNET modules are designed to quickly and easily plug into the ELVIS prototype board slot and be ready for operation Please configure the DCMCT system for use with the LabView virtual instruments by following the steps below Step 1 Do NOT make the following connections while power is supplied to the hardware even when the Standby Switch on the rear panel of the NI ELVIS Benchtop Workstation is switched to OFF Step 2 Install the QNET DCMCT board by completing the following steps a Position the large opening in the QNET board over the mounting bracket on the NI ELVIS benchtop workstation Note that some ELVIS workstations do not have the mounting brackets b Slide the PCI connector of the QNET module end into the female connector of the NI ELVIS workstation as shown in Figure 2 c Gently rock the board to ease it into place It may be a tight fit but do not force the board into place The QNET board should now slide into the board bracket am Figure 2 Fasten QNET Module onto ELVIS Revision 02 Page 3 QNET
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