How to come true a constant temperature control through PCI 7344

I have one PCI-7344 to control three motors.I also need to come true a constant temperature control through 7344.
using "Analog Input"and "Analog Reference",is it possible to come true the control.
To come true it, what others I need?
Waiting for your answer!
Thanks
帖子被langtian在12-20-2005 08:58 PM时编辑过了

Langtian,
In general the PID control loop of the 7344 can be used for a wide
variety of control applications. You can use the analog inputs to
acquire the feedback signals and the analog outputs to control e. g.
torque, flow rates and so on. For temperature control the board seems
to be a bit oversized as temperatures typically change very slowly
compared to the high control loop rates of the 7344 but this shouldn't
result in a problem.
Please note that the "Analog Reference" Output can't be used for
control tasks as this is a static analog output fixed to 7.5 V which
can't be changed.
For more information about how to use NI motion control boards with analog feedback please refer to this link and to this document.
Best regards,
Jochen Klier
National Instruments Germany

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here is the Hardware setup of mine.
[IMG]http://i34.tinypic.com/daa8.jpg[/IMG]
Now, I already have such a VI which gives me the temperature of heater. But i want to control the temperature of the Heater from VI, in which when i give certian temperature, then power supply provide the current in such amount that the required temperature is gained and stops when the temperature crosses the limit.
Message Edited by akhpal on 09-28-2009 10:06 AM

The problem is that you have basically created two completely different VI's and slapped them together. One is your real world analog input and analog output. The Inputs and Outputs are not connected to each other in any way. The second VI is the PID simulation example. It is an example to show you how a PID control algorithm is used. As an example, they created the "Plant" simulator there. That is simulating the real world for the purpose of the example and has nothing to do with your real world inputs and outputs. And why do you have the Proportional Gain VI in the upper loop and its output goes to the while loop tunnel and is never used again?
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One thing you will have to do is modify the DAQmx Read. You are reading an N channel N sample and getting a waveform. Why the N channel version when you are actually only using 1 channel? Also, youi need to get it to a single sample. You can use multiple samples, but it should only be for the sake of averaging the data together into a single value to feed to the PV of the PID subVI. As such, you should use either 1 channel 1 sample, or 1 channel N samples Array where the array is averaged to a single value. The Waveform type doesn't do you any good because you can't do anything with its timing information.
Attachments:
TempControlMOD.vi ‏174 KB

Position Control of compumotor linear servo table and GV-U6E with PCI-7344

I'm referring PCI-7344 (not 7334).
I have the GV-U6E which is a drive only and does not possess control functionality. the drive only version does not store or use programs. So, serial commands can not be sent through COM port by LabVIEW even though A few basic commands can be emulated.
I am trying to do position control as I mentioned. For example, the motor should move A point to B point exactly with a certain speed. The points must be aboulte position.
I would like you to see the reference comment that I have been contacting with in your website forum.
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=506500000008000000DD490000&USEARCHCONTEXT_CATEGORY_0=_14_&USEARCHCONTEXT_CATEGORY_S=0&UCATEGORY_0=_14_&UCATEGORY_S=0
Regard,
Jin Ho Lee
----- Original Message -----
From:
To:
Sent: Thursday, September 26, 2002 5:00 PM
Subject: Re: (Reference#1549-QYW196) "Position Control of linear servo table and GV-U6E with PCI-7344
>
> Note: Your reference number is included in the Subject field of this
> message. It is very important that you do not remove or modify this
> reference number, or your message may be returned to you.
>
>
> JinHo. Compumotor is a very popular brand, and I know of several customers
> who integrate our 7334 with Computmotor drives. However, when you say that
> the MAX configuration doesn't fit in the compumotor drive settings, are you
> referring to the specs from the 7344? It looks like the 7344 and the
> Compumotor will work well together through a UMI break out box. If you're
> referring to specific commands that the Compumotor receives, I'd have to
> know more about the protocol. If the Compumotor needs serial commands,
> then you can send them through the computer's COM port from LabVIEW.
> Please let me know exactly what kind of configurations you're trying to
> set. The 7344 can be completely configured in MAX and LabVIEW.
>
>
> Best Regards
>
> Kyle Voosen
> Applications Engineer
> National Instruments
> http://www.ni.com/support
>
> ------------------------------------------------------------------------------
>
> Problem Description :
> "Position Control of compumotor 406LXR linear servo table and GV-U6E(motor
> drive) with PCI-7344"
>
> "Since I had the answers referring:
> http://exchange.ni.com/servlet/ ProcessRequest?RHIVEID=101&RPAGEID=135&
> HOID=506500000008000000DD490000& USEARCHCONTEXT_CATEGORY_0=_14_&
> USEARCHCONTEXT_CATEGORY_S=0& UCATEGORY_0=_14_&UCATEGORY_S=0
>
> Wiring step was done well. However, I still have a problem that MAX
> configuration doesn't fit in compumotor drive settings. Therefore, the
> setup is shown below, and I want to know how I can set up PCI-7344
> configuration in MAX or LabVIEW VI.
>
>
> -----------------------------------------------------
>
> Uploaded from device address 0
>
> Gemini GV Servo Drive Setup
>
>
>
> Motor Setup
> DMTR 1703
> Motor ID (406-x-LXR-M-x-D13-x-x-x-x-E5-x-x-x)
> DMTIC 2.48
> Continuous Current (Amps-RMS)
> DMTICD 0.00
> Continuous Current Derating (% derating at rated speed)
> DMTKE 17.6
> Motor Ke (Volts (0-to-peak)/krpm)
> DMTRES 10.10
> Motor Winding Resistance (Ohm)
> DMTJ 119.300
> Motor Rotor Inertia (kg*m*m*10e-6)
> DPOLE 1
> Number of Motor Pole Pairs
> DMTW 40.5
> Motor Rated Speed (rev/sec)
> DMTIP 7.40
> Peak Current (Amps-RMS)
> DMTLMN 3.4
> Minimum Motor Inductance (mH)
> DMTLMX 3.4
> Maximum Motor Inductance (mH)
> DMTD 0.000000
> Motor Damping (Nm/rad/sec)
> DMTRWC 0.23
> Motor Thermal Resistance (degrees Celsius/Watt)
> DMTTCM 20.0
> Motor Thermal Time Constant (minutes)
> DMTTCW 0.33
> Motor Winding Time Constant (minutes)
> DMTAMB 40.00
> Motor Ambient Temperature (degrees Celsius)
> DMTMAX 90.00
> Maximum Motor Winding Temperature (degrees Celsius)
> DHALL 1
> Disable Hall Sensor Checking
> DMTLQS 0
> Set Q Axis Inductance Saturation
> DMTLDS 0
> Set D Axis Inductance Saturation
> DTHERM 0
> Disable motor thermal switch input
>
>
>
> Drive Setup
> DMODE 2
> Drive Control Mode
> DRES 8400
> Drive Resolution (counts/rev)
> DPWM 16
> Drive PWM Frequency (kHz)
> SFB 1
> Encoder Feedback
> ERES 8400
> Encoder Resolution (counts/rev)
> ORES 8400
> Encoder Output Resolution (counts/rev)
> DMEPIT 42.00
> Electrical Pitch (mm)
> SHALL 0
> Invert Hall Sensors
> DMTLIM 1.5
> Torque Limit (Nm)
> DMTSCL 1.5
> Torque Scaling (Nm)
> DMVLIM 119.000000
> Velocity Limit (rev/sec)
> DMVSCL 119.000000
> Velocity Scaling (rev/sec)
>
>
>
> Load Setup
> LJRAT 0.0
> Load-to-Rotor Inertia Ratio
> LDAMP 0.0000
> Load Damping (Nm/rad/sec)
>
>
>
> Fault Setup
> FLTSTP 1
> Fault on Startup Indexer Pulses Enable
> FLTDSB 1
> Fault on Drive Disable Enable
> SMPER 8400
> Maximum Allowable Position Error (counts)
> SMVER 0.000000
> Maximum Allowable Velocity Error (rev/sec)
> DIFOLD 0
> Current Foldback Enable
>
>
>
> Digital Input Setup
> INLVL 11000000
> Input Active Level
> INDEB 50
> Input Debounce Time (milliseconds)
> INUFD 0
> Input User Fault Delay Time (milliseconds)
> LH 0
> Hardware EOT Limits Enable
>
>
>
> Digital Output Setup
> OUTBD 0
> Output Brake Delay Time (milliseconds)
> OUTLVL 0100000
> Output Active Level
>
>
>
> Analog Monitor Setup
> DMONAV 0
> Analog Monitor A Variable
> DMONAS 100
> Analog Monitor A Scaling (% of full scale output)
> DMONBV 0
> Analog Monitor B Variable
> DMONBS 100
> Analog Monitor B Scaling (% of full scale ouput)
>
>
>
> Servo Tuning
> DIBW 1500
> Current Loop Bandwidth (Hz)
> DVBW 100
> Velocity Loop Bandwidth (Hz)
> DPBW 40.00
> Position Loop Bandwidth (Hz)
> SGPSIG 1.000
> Velocity/Position Bandwidth Ratio
> SGIRAT 1.000
> Current Damping Ratio
> SGVRAT 1.000
> Velocity Damping Ratio
> SGPRAT 1.000
> Position Damping Ratio
> DNOTAF 0
> Notch Filter A Frequency (Hz)
> DNOTAQ 1.0
> Notch Filter A Quality Factor
> DNOTAD 0.0000
> Notch Filter A Depth
> DNOTBF 0
> Notch Filter B Frequency (Hz)
> DNOTBQ 1.0
> Notch Filter B Quality Factor
> DNOTBD 0.0000
> Notch Filter B Depth
> DNOTLG 0
> Notch Lag Filter Break Frequency (Hz)
> DNOTLD 0
> Notch Lead Filter Break Frequency (Hz)
> SGINTE 1
> Integrator Option
> SGVF 0
> Velocity Feedforward Gain (%)
> SGAF 0
> Acceleration Feedforward Gain (%)
> -----------------------------------------------------
>
>
> Regards,
> JinHo"
> NI Software :
> LabVIEW version 6.0
> NI Hardware :
> Motion Control device PCI-7344
> Driver Version :
> no
> OS :
> Windows 2000
> CPU :
> Pentium
> RAM :
> 128
> Vendor :
> DELL
> Customer Information :
> Jin Ho Lee
> North Carolina State Univ.
> US
> [email protected]
> Ph: (
> 919
> )
> 512-9929
>
>

Yes, we used an NI PXI-7344 motion control card with an NI UMI-7764 box connected to a Gemini GV-U12E servo drive. (which is a drive only.)
We did positional control in absolute position mode.
I can send you an AutoCAD schematic detailing how to connect the UMI-7764 to the Gemini GV servo drive.
In regard to the Rs232 interface to the GV servo drive,
the GV drive only model is "configurable" not "programmable". You can create unique GV configuration files with Compumotor's Motion planner then download the configuration via Rs232 using LabVIEW as desired. Or, using LabVIEW via Rs232 you can change individual GV drive parameters on demand,
or use the GV's two analog outputs back to LabVIEW's analog inputs to measure commanded motor current or torque, etc.etc.etc

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Quote
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I'm not sure what ADD_SERIES method you are refering to. The only programable API for the Business Graphics that I found was this one:
http://help.sap.com/saphelp_nw70/helpdata/EN/42/e61cd068dc3ee4e10000000a1553f7/frameset.htm
I've not ever tried it, but you not just add the series UI element like any other dynamic UI manipulation during the WDDOMODIFYVIEW?
http://help.sap.com/saphelp_nw70/helpdata/EN/11/ba74412cba127de10000000a155106/frameset.htm

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