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1、东莞开拓激光科技有限公司MicroMaxTM Series 670Single Axis Board LevelMirror Positioning SystemINSTRUCTION MANUAL Revision 2, December 21, 1998CAMBRIDGE TECHNOLOGY, INC.109 Smith PlaceCambridge, MA 02138U.S.A.TEL.617-441-0600 FAX.617-497-8800TABLE OF CONTENTS1.0. Introduction2.0. Servo Amplifier Specifications3.0
2、. Description of Operation3.1. Overview3.2. Mechanical Layout3.3. Input Power3.4. Position Demodulator3.5. AGC Circuit3.6. Command Input3.6.1. Input Configuration Jumper3.6.2. Analog Input3.6.3. Digital Input3.6.4. Command Input Scale Factor Calculation3.6.5. Command Offset3.6.6. Command Offset Scal
3、e Factor Calculation3.6.7. Slew Rate Limiter3.7. Tuning Section3.7.1. Class 13.7.2. Class 03.8. Output Amplifier3.8.1. Overview3.8.2. Output Stage Disable3.9. Reference Voltages3.10. Notch Filter Socket3.11. Observation/Control Header3.11.1. User Outputs3.11.2. Remote Shutdown Input3.12. LED Status
4、Indicator3.13. Protection Circuits3.13.1. Startup Sequence3.13.2. Error Shutdown3.14. Mirror Alignment Mode4.0. Operating Instructions4.1. Precautions and Warnings4.2. First Time Startup5.0. Terms and Conditions of Sale6.0. Appendices6.1. Tune-up Procedure6.1.1. Precautions6.1.2. Overview6.1.2.1The
5、Order in which Adjustments should be made6.1.3. Materials Needed6.1.4. Initial Setup6.1.4.1Board Silkscreen Potentiometer Identification6.1.5. Adjusting Position Output Scale Factor and AGC Linearity6.1.5.1. Closed Loop Method6.1.5.2. Open Loop Method6.1.6. Command Input Scale Adjustment6.1.7. Closi
6、ng the Servo Loop6.1.7.1. Class 16.1.7.1.1. Coarse Tuning6.1.7.1.2. Fine Tuning6.1.7.1.3. Slew Rate Limiter Speed Adjustment6.1.7.2. Class 06.1.7.2.1. Coarse Tuning6.1.7.2.2. Fine Tuning6.1.8. Aligning the Mirrors6.1.9. Matching the X and Y Channels6.2. 6740-XX Notch Filter Module6.2.1 Background Th
7、eory6.2.2 Notch Filter Tuning6.2.2.1 Determining Fr6.2.2.2 Selecting the Proper 6740-XX NFM6.2.2.3 Inserting and Tuning the 6740-XX NFM6.3 Schematics and Assembly Drawings1.0. IntroductionAs the complexity and specification requirements of todays optical systems increase, so does the need for high p
8、erformance, high accuracy, and compact mirror positioning systems. The MicroMaxTM Series 670 system was designed for applications that require high performance specifications.The Series 670 Single axis Board-Level Mirror Positioning System consists of a single-channel servo amplifier on a 2.50” x 4.
9、00” board and a high performance scanner. The scanner is designed for a specific range of inertial loads, allowing mirrors with inertias from less than 0.001 gm-cm2 to greater than 100,000 gm-cm2 to be precisely controlled.This manual describes the 670 servo board electronics. (A separate manual wil
10、l describe the particular motor matched to this system.) This manual describes the servo board in detail so the user can better integrate this mirror positioning sub-system into the end use application. At the end of the manual is a complete set of schematics and assembly drawings.Please read this m
11、anual in order to fully understand the operation of this mirror positioning system. The optical scanners used in this system are delicate devices and can be damaged if mishandled. Do not attempt to retune the drive electronics until the tune-up procedure in section 6.0. is fully understood. Failure
12、to do so could result in serious damage to both the scanner and electronics. 2.0. Servo/Amplifier SpecificationsMicroMax 670XX Board Level Drive ElectronicsAll angles are in mechanical degree. All specifications apply after a 1 minute warm up period.Analog Input Impedance:200K + 1% ohms (Differentia
13、l)100K + 1% ohms (Single Ended)Position Output Impedance: 1K + 1% ohms (For all observation outputs) Position Input Scale Factor:0.5 volt/o (2o/volt)Analog Position Input Range: + 10 volts maxDigital Position Input Range:216 dac countsNon-Linearity of 16 Bit Digital Input:0.006% of full scale, maxPo
14、sition Offset Range:+ 2 voltsPos. Output Scale Factor: 0.5 volt/oError Output Scale Factor:0.5 volt/oVelocity Output Scale Factor:Analog (scaled by position differentiator gain)Fault Output:Open Collector: 1K ohm output impedance (pullsdown to 15V), with 10mA sink capability Temperature Stability of Electronics:20PPM per oCInput Voltage Requirements: +/-15 to +/-28VDC (current varies with motor configuration)Maximum Drive Current Limit: Peak:10 Amperes RMS:5 Amperes (power supply, load, & heat sink dependent.) Operating Temperature Range: 0 - 50CSize:4.0in x 2.in x 1.06in
