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LinearX LT360 Скачать руководство пользователя страница 40

LT360 Precision Turntable

User Manual

LT360 Precision Turntable

User Manual

40

■

Zero CW / CCW

(Green SWs)

These two switches are used to move the platter to the origin (0.0) either by
clockwise (CW) or counter clockwise (CCW) rotation.

If the platter is already rotating pressing these switches will have no effect
until the active movement has completed.

Note: To abort / stop a rotation, press either Red swtich.

■

Set Origin

(Blue SW)

This switch is used to change the origin to the current platter position. No
platter movement occurs.

When the switch is pressed, the display will flash "0.0". To change the origin,
while this switch is pressed, press either of the White Step switches. This
double switch action is required to prevent accidental changes to the origin.
If you do not press a White switch, the original position will be retained
when this switch is released.

■

Set Step Size DPS

(Blue SW)

This switch is used to change the step size. When this switch is pressed, the
display will show the current step size. The step size can then be changed
up/dn by pressing the white Step buttons. Holding the Step buttons will
produce auto repeat. The minimum step size is 0.1 degrees.

49

0 Sec 25m

50m

75m

100m

125m

150m

175m

200m

225m

250m

275m

300m

325m

350m

375m

400m

425m

450m

475m

500m

M/S

0

10m

20m

30m

40m

50m

60m

70m

80m

90m

100m

110m

Velocity vs Time

Vel_SIN3 512

Vel_SIN2 512

Vel_IMPL 512 @ 1RPM/1M
Vel_FLAT 512
Vel_RAMP 512

Sun 11:58 am

Mar 19, 2006

Precision Turntable

≥

3.2 Degree Movement

0 Sec 25m

50m

75m

100m

125m

150m

175m

200m

225m

250m

275m

300m

325m

350m

375m

400m

425m

450m

475m

500m

M/S

2

0

50m

100m

150m

200m

250m

300m

350m

400m

450m

Acceleration vs Time

Acc_SIN3 512

Acc_SIN2 512

Acc_IMPL 512 @ 1RPM/1M
Acc_FLAT 512
Acc_RAMP 512

Sun 11:58 am

Mar 19, 2006

(2.07)

≥

3.2 Degree Movement

Precision Turntable

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Содержание LT360

Страница 1: ...FAX 503 612 9344 www linearx com sales linearx com LinearX Systems Inc 9500 SW Tualatin Sherwood Rd Tualatin OR 97062 8586 USA All specifications subject to change without notice 2006 All Rights Reser...

Страница 2: ...ed States of America March 30 2006 This document was produced on a Pentium 4 2GHz PC with Win2K using Adobe PageMaker 7 0 Adobe Illustrator 10 0 Adobe PhotoShop 7 0 MathType 4 0 for mathematics typogr...

Страница 3: ...or archival purposes You must reproduce and include the copyright notice and label any backup copy You may not a distribute copies of the program or the documentation to others b lease rent grant subl...

Страница 4: ...you should recognize that all complex software systems and their documentation contain errors and omissions LinearX its distributors and dealers shall not be responsible under any circumstances for p...

Страница 5: ...communicating via an electronic means such as Email or uploading files directly to our web site 2 If the issue regards error messages from the program please include an exact descrip tion of the erro...

Страница 6: ...versible Worm Drive Scale Accurate Screen Printed 1 Degree Chassis 16ga Steel Drive System Motor NEMA 23 Stepper Motor Controller Bipolar Microstepping Microprocessor Direction Either Counterclockwise...

Страница 7: ...p 13 2 1 Rubber Feet 15 2 2 Mounting to the LT360 16 2 3 Mounting to the Platter 17 2 4 Mounting to the Base 18 3 1 AC Power 21 3 2 Control Methods 22 3 3 Computer Interfaces 23 3 4 Pulse Input 24 3 5...

Страница 8: ...tion 30 5 1 Front Panel Functions 33 6 1 Acceleration Functions 43 6 2 Velocity Profiles 46 6 3 Actual Accel Velocity Profiles 47 6 4 Horizontal Torque Capability 52 6 5 Vertical Torque Capability 54...

Страница 9: ...g Input Pulse Input Direction Trigger 72 8 9 CPU LDR USB Firmware LT360LIB DLL 73 8 10 Action Buttons 74 8 11 Position Graphic Readouts 75 8 12 Calibration Button 76 8 13 Update Button 77 8 14 Test Bu...

Страница 10: ...ction will update the firmware for the main 32 bit CPU in the LT360 The Flash memory will be reprogrammed Firmware updates are provided as Hex files with a name such as Vader_200 hex If you are provid...

Страница 11: ...objects are a safe distance away from the area where the turntable is operating 78 Calibration Clicking this button will open the Calibration dialog as shown below Calibration is performed originally...

Страница 12: ...of the position When the LT360 is rotating both displays will be updated several times per second However these two graphics also have active control functions Click on the Platter When the platter is...

Страница 13: ...Action This group box contains a number of buttons to control the platter position The Step CW and Step CCW buttons will cause the platter to rotate one step either ClockWise or Counter ClockWise The...

Страница 14: ...e fields LDR Firmware This group box displays the version code and identifier of the Boot Loader firmware in the 32bit CPU It is the silicon revision level of the CPU USB Firmware This group box displ...

Страница 15: ...w you to bolt the base of the LT360 directly to your fixture without the rubber pads between the inter face This will make the joint more rigid If you will be using the LT360 on the floor then the rub...

Страница 16: ...utput Mode This selection controls the operating mode for the Analog Output When Continuous is selected the Analog Output will continuously follow the platter position as it is moving This is a real t...

Страница 17: ...is disabled it will ignore that input If you are not using the analog input this input must be disbaled Otherwise the LT360 will be controlled by any noise received at the input Pulse Input This selec...

Страница 18: ...All position values are positive When it is set to BIPOLAR the range will be 0 to 180 degrees Both positive and negative values will be shown Analog Output Polarity This selection controls how the LT3...

Страница 19: ...rque This is the stepper motor torque for the platter rotation The value is set in percent of maximum torque The allowable range for the parameter is 10 0 to 100 0 For most typical applications your w...

Страница 20: ...ation requiring periodic recalibration for NIST compliance the unit can be recalibrated by sending it back to the factory Name This is an arbitrary name which the user can assign to a particular LT360...

Страница 21: ...turns to its home position after each movement If disabled no checking is performed If checking is enabled and the motor does not end its operation in the home position an error message is shown on th...

Страница 22: ...cceleration deceleration is an important feature that permits heavy loads to be rotated and with minimal shock and disturbance For typical applications the 1 Flat function provides excellent performan...

Страница 23: ...serial port on the computer The Link group box has selections for USB NONE COM1 COM2 etc If the NONE selection is chosen the link will be closed To open a link select the USB or one of the COM ports...

Страница 24: ...e ignored If you are not using the TTL pulse input it is probably best to keep this feature disabled to prevent false triggering due to any noise pickup at the open connector 65 8 1 LT360 Windows Soft...

Страница 25: ...unipolar 0 3 600V or bipolar 0 1 800V The input impedance of the analog input is 1M Ohm Although the input is an unbalanced BNC connector the actually circuitry is differential This helps to reject g...

Страница 26: ...lution of the LT360 is 0 1 degree the equiva lent resolution in the output is 1mV The input impedance of the other device should be at least 100K Ohm to prevent loading errors 63 Error 11 Display Cont...

Страница 27: ...standard PS2 cable Mini DIN6 The LR360 remote must be con nected to the LT360 turntable before the power is turned on When power is applied the LT360 searches for the presence of the LR360 If found it...

Страница 28: ...ght or wrong places can make a difference Error 8 USB Unknown Command This error indicates that the LT360 did not understand the command index sent via USB This error is very uncommon It probably indi...

Страница 29: ...differences in the communication parameters between the computer and the LT360 Make sure that the computer serial port setup is 9600 baud 8 data bits no parity and 1 stop bit If the LT360 baud rate ha...

Страница 30: ...data bits no parity and 1 stop bit If the LT360 baud rate has been changed then the PC must be set the same Error 2 RS232 PE Parity Error This error indicates problems with the serial port communicati...

Страница 31: ...9600 baud 8 data bits no parity 1 stop bit and no flow control Error 0 Motor Home Position Error The stepper motor produces a specific number steps for a given amount of platter rotation The LT360 ut...

Страница 32: ...ollowing list describes some of the error codes which can appear Show Error Display Codes 0 Motor Home Position Error 1 RS232 OE Overrun Error 2 RS232 PE Parity Error 3 RS232 FE Framing Error 4 RS232...

Страница 33: ...not able to be described on the front panel surface and will be detailed here in the following pages STEP CW STEP CCW ZERO CW ZERO CCW SET DPS RESOLUTION DEG STEP 10mV DEG SET RPM SET ORIGIN SET TORQ...

Страница 34: ...ere force is is the product of mass and acceleration F M A T R F R M A M T R A Since the vertical position is changing gravity is a factor Depending on the position of the load or the rotational direc...

Страница 35: ...abled or disabled either by using the Win32 application program or through USB or RS 232 commands Note This input must be disabled if not in use otherwise it will override all other control methods Th...

Страница 36: ...software or by commands with different operating modes The Analog Output voltage is extremely precise and highly stable over the entire temperature range of 0C to 40C 53 For a Standard LT360 model the...

Страница 37: ...the display will show either Position Degrees Step Size DegPerStep Velocity RPM Torque or the Acceleration Function The following pages covering the switch func tions will describe these operations in...

Страница 38: ...ed the LT360 searches for the presence of the LR360 If found its display controller will be initialized for use rather than the front panel controls of the LT360 Otherwise the LT360 controls are used...

Страница 39: ...meter values STEP CW STEP CCW ZERO CW ZERO CCW SET DPS RESOLUTION DEG STEP SET RPM SET ORIGIN SET TORQUE VELOCITY REV MIN ZERO DEG REFERENCE MOTOR POWER 50 0 Sec 10m 20m 30m 40m 50m 60m 70m 80m 90m 10...

Страница 40: ...position will be retained when this switch is released Set Step Size DPS Blue SW This switch is used to change the step size When this switch is pressed the display will show the current step size The...

Страница 41: ...is rotating will abort stop the rotation 48 The following graphs show the actual acceleration and velocity profiles for 1 RPM and with a radial distance 1 Meter from center If the rotational travel is...

Страница 42: ...nal travel for a particular movement may be different the LT360 utilizes three different families of acceleration functions for various step size minimums of 3 2 degrees 1 0 degrees and 0 1 degrees De...

Страница 43: ...SIN2 4 SIN3 LT360 ACCELERATION PROFILES ACCELERATION CONSTANT VELOCITY DECELERATION 1 FLAT 2 R A M P 3 SIN2 4 SIN3 NOTE HEIGHT OF IMPULSE IS 10X FLAT 0 IMPULSE 46 LT360 VELOCITY PROFILES ACCELERATION...

Страница 44: ...s based on a parabolic velocity function 45 3 SIN2 The Sin2 function provides a more gradual acceleration profile beginning at zero increasing to a maximum then decreasing to zero again as the constan...

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