Summary of Contents for Aerotech BA-SineDrive Series
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Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
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Our web site is continually updated with new product information, free downloadable software, firmware upgrades, and special pricing on selected products. The BA-SineDrive and BAS software are products of Aerotech, Inc. Windows 95/NT are products of Microsoft Corporation. The BA-SineDrive User’s Manual Revision History: Version 1.0...
3.2.4. PRM:4 Encoder Resolution (ENCODER) ......3-3 3.2.5. PRM:5 Electrical Cycles/Mechanical Revolution (POLE PAIRS)..............3-4 3.2.6. PRM:6 Hall Effects Available (HALLS) ......3-4 Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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BAS Amplifier Dimensions .............. 5-15 5.6.1. Mounting Procedures for the BAS 10/20/30/50 ....5-17 5.6.2. Mounting Procedures for the BAS 75/100 ......5-18 Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Amplifier Related Problems ............... 6-1 APPENDIX A: WARRANTY AND FIELD SERVICE.......... A-1 APPENDIX A: WARRANTY AND FIELD SERVICE POLICY......A-1 INDEX ∇ ∇ ∇ Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Table of Contents BA SineDrive User’s Manual Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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BAS Amp Top View (Preferred Mounting, 10/20/30/50) ....5-17 Figure 5-18. Preferred Mounting of BAS Amplifiers (10/20/30/50)..... 5-18 Figure 5-19. Preferred Mounting of BAS Amplifiers (75/100)......5-19 ∇ ∇ ∇ Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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List of Figures BA SineDrive User’s Manual Aerotech, Inc. viii Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Pinouts for the Encoder/Limits/Hall Effects Port ....... 5-9 Table 5-4. Electrical Specifications ..............5-14 Table 6-1. Amplifier Faults, Causes, and Solutions..........6-1 ∇ ∇ ∇ Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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List of Tables BA SineDrive User’s Manual Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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BA SineDrive User’s Manual Regulatory Information DECLARATION OF CONFORMITY Manufacturer’s Name and Address Aerotech, Inc. 101 Zeta Drive Pittsburgh, PA 15238-2897 Declares that the product: Product Name: BA Intellidrive/BA Sinedrive Conforms to the following product specifications: EMC: EN 55011: Class B Emissions...
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Regulatory Information BA SineDrive User’s Manual Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
This chapter covers symptoms, probable causes, and solutions related to the BA- SineDrive. APPENDIX A: WARRANTY AND FIELD SERVICE Appendix A contains the warranty and field service policy for Aerotech products. INDEX The index contains a page number reference of topics discussed in this manual. Locator page references in the index contain the chapter number (or appendix letter) followed by the page number of the reference.
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A customer survey form is included at the end of this manual for the reader’s comments and suggestions about this manual. Readers are encouraged to critique the manual and offer their feedback by completing the form and either mailing or faxing it to Aerotech. Throughout this manual the following conventions are used: é...
The BAS10/20/30/50/75/100 are switching Pulse Width Modulation (PWM) amplifiers. The amplifiers consist of an amplifier, control board, and internal power supply. Figure 1-1. BA-SineDrive Amplifiers (10/20/30/50/75/100) Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
All parameters are stored in flash memory. After the initial setup, the unit will boot in the user-defined configuration. Figure 1-2 shows a typical configuration using the BAS. Figure 1-2. Illustration of Configuration Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
In order for the MMI to communicate, the BAS be in remote mode. To enter remote mode, run the com_bai.exe software in a DOS shell, and press CTRL-A. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Click and hold the left mouse button to see the parameter , range. Releasing the mouse button will hide the range. Figure 1-4. Parameter Screen Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
To view more information about a parameter (such as the purpose of a parameter or the units associated with a parameter,), click on the right mouse button while the parameter name is highlighted. Figure 1-5. Parameter Information Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Figure 1-6. BA-SineDrive Hardware (10/20/30) AC Power Motor Connections LED Status Indicators COM Port Encoder/Limits/Hall Effects Port I/O Port Figure 1-7. BA-SineDrive Hardware (50/75/100) Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
BAS. This connector contains the motor connections along with the earth ground connection. Motor Connection Motor AC Power Cables Motor 110VAC or 220VAC Figure 1-8. Motor and AC Power Connections – 10/20/30 Models Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Auxiliary Power Input Ground Motor Connector A Motor Connector B Motor Connector C Ground Figure 1-9. Motor and AC Power Connections – 50/75/100 Models Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
ALTERNATELY, 2 THERMISTORS CAN BE USED IN AC HI & LO FOR MULTIPLE AMPS IN PARALLEL. Figure 1-10. Fuse and Inrush Limiting – 10/20/30 Models Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Motor connections are made through the A, B, and C connections on the front of the unit. BAS SERIES FUSING A.C. Input FUSES Figure 1-11. AC Input Fusing – 50/75/100 Models Aerotech, Inc. 1-10 Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
The internal power supply of the BAS amplifier requires a minimum of 80VAC input to operate properly. Figure 1-12 shows the connection to the separate AC power board. The connection is made to the AC input board with a three terminal connector (Aerotech Part # ECK00213). 115VAC HI (H)
(refer to Figure 1-6). It consists of two signal lines; transmit (TXD) and receive (RXD), a ground, shield, and a 5V power supply line used to power the Aerotech Hand held Terminal (HHT). Table 1-1 contains the connector pinouts. The BAS is configured as Data Terminal Equipment (DTE);...
To minimize the possibility of bodily injury, make certain that all electrical power switches (all switches external to the amplifier) are in the off position prior to making any mechanical adjustments. ∇ ∇ ∇ Aerotech, Inc. Version 1.4 1-13 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Introduction BA SineDrive User’s Manual Aerotech, Inc. 1-14 Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Refer to Table 2-2. Table 2-2. Control Board Jumper Selections Jumper Position Mode 5V Opto input 24V Opto input BAS Control Board Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Tracking Screen Pressing any key will take the user to the parameters screen. This screen is shown in Figure 2-2. Figure 2-2. Parameter Screen Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
These parameters are discussed in Chapter 3: Parameters. Pressing the F1 key aborts changing the parameter. Figure 2-3. The Change Parameter Screen Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
2.4.2. D-Display Tracking Information After pressing the D key, the user will see the following screen in Figure 2-5. Figure 2-5. Display Tracking Screen Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Reserved bit 3: Reserved bit 4: Fault bit 5: Reserved bit 6: Reserved bit 7: Reserved See Section 2.5. for types of errors. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
If the current command stays above the threshold too long, the amplifier will fault. 2.5.1.3. Velocity Error PRM:18 sets the max allowable velocity error before a fault occurs. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Pressing the space bar cycles through the available commands on the top level menu. 2.5.6. CTRL-D Pressing "CTRL-D" issues a reset to the BAS. This is needed to clear any fault(s) ∇ ∇ ∇ Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Configuration and Communication BA SineDrive User’s Manual Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
The text in parentheses () following the parameter names in the section headings are the abbreviation for that parameter as seen on the display. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Settings Default Value Maximum Value 1000 Minimum Value -1000 Units A negative value can be used to change the polarity of the velocity. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Table 3-4. Settings for Encoder Resolution PRM:4 PRM:4 Settings Default Value 4000 Maximum Value 2147483647 Minimum Value Type Long (32 bit) Units Counts Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
PRM:6 Settings Default Value 1(Halls available) Maximum Value Minimum Value Type Long (32 bit) Units This method will not work on vertical stages. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Settings Default Value Maximum Value Minimum Value Type Long (32 bit) Units % of Peak The motor should not be in a limit. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Settings for Low Pass Filter PRM:9 PRM:9 Settings Default Value 0 (filter is not enabled) Maximum Value Minimum Value Type Long (32 bit) Units Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Type Long (32 bit) Units Degrees Aerotech motors have a phase offset of 0°. Other vendors typically set it to 30°. Refer to Section 5.4.2. for details on phasing Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Table 3-13. Settings for Position Mode PRM:13, PRM:14 PRM:13, PRM:14 Settings Default Value Maximum Value 2048 Minimum Value -2048 Type Long (32 bit) Units Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Settings for Servo RMS Limit PRM:16 PRM:16 Settings Default Value Maximum Value Minimum Value Type Long (32 bit) Units Percent (%) Requires a reset (CTRL-D) before taking effect. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
PRM:18 Settings Default Value Maximum Value 65535 Minimum Value Type Long (32 bit) Units Counts/Samples Requires a reset (CTRL-D) before taking effect. Aerotech, Inc. 3-10 Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
The input is applied to pins 17 and 18 on connector P1. Refer to Table 3-20 for parameter settings. Requires a reset (CTRL-D) before taking effect. Aerotech, Inc. Version 1.4 3-11 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
1 if a thermistor is not present. Refer to Table 3-21 for parameter settings. Table 3-21. Settings for Thermistor Polarity PRM:21 PRM:21 Settings Default Value Maximum Value Minimum Value Type Long (32 bit) Units Aerotech, Inc. 3-12 Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Table 3-24. Settings for Encoder Polarity PRM:24 PRM:24 Settings Default Value Maximum Value Minimum Value Type Long (32 bit) Units ∇ ∇ ∇ Aerotech, Inc. Version 1.4 3-13 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Parameters BA SineDrive User’s Manual Aerotech, Inc. 3-14 Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
When operating in current mode, the BAS relies on an external controller to close the position and velocity loops. The BAS uses this command and with the encoder, will sinusoidally commutate a brushless motor. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
The PRM:12 is used to cancel any bias in the internal or external control circuit that would cause the motor to rotate when the input command signal is zero. ∇ ∇ ∇ Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
E n c o d e r/L im its /H a ll I/O P o rt E ffe c ts P o rt C O M P o rt Figure 5-1. BA-SineDrive Hardware Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
In order to reduce conducted emissions, an external filter should be added to the BAS. Aerotech can provide a filter box, PN# UFM, that will minimize line emissions for CE (10A, 20A, and 30A models only).
This configuration is especially important if the BAS Amplifier is operating at DC bus voltages of 160 VDC or 320 VDC (e.g., 11 5VAC or 230 VAC input power). Figure 5-3. Back-Propagation Line Filter Connection Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Figure 5-1. It consists of two signal lines; transmit (TXD) and receive (RXD), a ground, shield, and a 5V power supply line used to power the Aerotech Hand held Terminal (HHT). Table 5-1 contains the connector pinouts. The BAS is configured as Data Terminal Equipment (DTE), therefore, a NULL MODEM cable is required to connect to the PC.
A green light indicates the amplifier is in the ready state and the motor is enabled, while a red light indicates a fault or the power stage is disabled. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
To minimize this effort, the encoder signals on P3 are connected to P1 on pins 21 to 24 (see Table 5-2). Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
1.5K Ohms, the input to the inverter will pull high and generate a fault in the controller. + 5V 5 V Logic Interface 1.5K To Thermal 74HCT04A Sensor .1UF Figure 5-5. Over-Temperature Circuitry Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Fault Output Output Common = To signal common of external circuit Opto-Coupler - PS2501 – 4 Figure 5-7. Electrical Characteristics of Opto-Isolated Output Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Marker-N SIN-N Marker Tach+ Tach- Limit Com. Encoder Com. Hall Effect A Home Limit-N Hall Effect C 23, 25 CW Limit CCW Limit Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
5 volt signals that form a digital six step pattern. The controller receives these signals with a circuit that is electrically identical to the limit input circuit. Refer to Figure 5-10 for Hall effect input circuitry. Aerotech, Inc. 5-10 Version 1.4...
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Figure 5-10. Hall Effect Input Circuit Aerotech brushless rotary motors are shipped from the factory with the correct motor phase to Hall effect device relationship established. This is essential for proper motor commutation. The parameter that affects this relationship is PRM:11 and is set at 0, Figure 5-11 and Figure 5-12 illustrates the proper Hall effect and motor phasing for both CW and CCW motor rotation (viewed looking into the mounting flange of the motor).
The following procedure is only necessary if the user has to replace a defective encoder or is using a non-Aerotech motor. Motor voltage is monitored without power applied to the motor.
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Figure 5-13. Motor Phase Voltage Observation Scheme Hall Effect A, B, and C,encoder connector. O-Scope Probe Figure 5-14. Encoder Phase Voltage Observation Scheme Aerotech, Inc. Version 1.4 5-13 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Drive enable LED, Power-On LED Depends on AC input voltage. 40-80 VDC bus requires external transformer, 110 VAC auxiliary input for control input power. Aerotech, Inc. 5-14 Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
177.8 [7.00] ® A E R O T E C H 169.4 [6.67] Typ. ENABLE DRIVE COMPONENTS DIVISION 186.7 [7.35] COMM. AEROTECH, INC. PITTSBURGH, PA USA P/N - S/N - 4.4 [.17] 82.0 [3.23] 4.8 [.19] Typ. Typ. Typ. 132.6 [5.22] 73.8 [2.91]...
PWR INPUT 64.8 [2.55] EXT SHUNT DANGER! HIGH VOLTAGE 241.3 [9.50] S I N E D R I V E 217.9 [8.58] ACTIVE 231.4 [9.11] AEROTECH ® 182.9 [7.20] Typ. DRIVE ENABLE COMPONENTS DIVISION 213.4 [8.40] AEROTECH, INC. PITTSBURGH, PA USA 152.4 [6.00]...
Technical Details 5.6.1. Mounting Procedures for the BAS 10/20/30/50 To ensure proper heat dissipation, Aerotech recommends the following procedures. Use the mounting procedure shown in Figure 5-18. The wider part of the amp should be mounted to the heat sink.
Preferred Mounting of BAS Amplifiers (10/20/30/50) 5.6.2. Mounting Procedures for the BAS 75/100 To ensure proper heat dissipation, Aerotech recommends the following procedures. Use the mounting procedure shown in Figure 5-19. The wider part of the amp should be mounted to the heat sink.
ACTIVE ® A E R O T E C H ENABLE DRIVE COMPONENTS DIVISION AEROTECH, INC. PITTSBURGH, PA USA Metal Panel (Preferred mounting for better heat dissipation) Figure 5-19. Preferred Mounting of BAS Amplifiers (75/100) ∇ ∇ ∇ Aerotech, Inc.
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Technical Details BA SineDrive User’s Manual Aerotech, Inc. 5-20 Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
There is problem with the system registry. Run REG95.BAT or REGNT.BAT file error when attempting to open the that are included in the installation. For more information, refer to the parameters screen. README.TXT file. Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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There are offsets in the D/A converters. Adjusting parameters 13 and 14 can help null out move the motor. these offsets, however, it is a precarious process. For additional help, contact Aerotech. When I connect the serial Problem with the serial cable. Make sure that a null modem cable is being used and the cable to the unit, the PC cable is intact.
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Aerotech makes no warranty that its products are fit for the use or purpose to which they may be put by the buyer, whether or not such use or purpose has been disclosed to Aerotech in specifications or drawings previously or subsequently provided, or whether or not Aerotech’s products are specifically designed and/or manufactured for...
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Warranty and Field Service Returned Product Non- After Aerotech’s examination, the buyer shall be notified of the repair cost. At such time warranty Determination the buyer must issue a valid purchase order to cover the cost of the repair and freight, or authorize the product(s) to be shipped back as is, at the buyer’s expense.
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Electrical Cycles, 3-4 Inrush Limiting Electrical Specifications, 5-14 BAS 10/20/30, 1-9 Electronic Tach, 3-2 BAS 50/75/100, 1-10 EMI Interference, 5-2 Integral Clamp, 3-11 Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Index BA SineDrive User’s Manual Aerotech, Inc. Version 1.4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Company name ________________ Address ________________ ________________ Remove this page from the document and fax or mail your comments to the technical writing department of Aerotech. AEROTECH, INC. Technical Writing Department 101 Zeta Drive Pittsburgh, PA. 15238-2897 U.S.A. Fax number (412) 967-6870...
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Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...