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USER GUIDE
MID-7654/7652 S
Contents
National Instruments™, NI™, and ni.com™ are trademarks of National Instruments Corporation. Product and company names mentioned herein are
trademarks or trade names of their respective companies.
322691B-01
Copyright © 2000, 2001 National Instruments Corp. All rights reserved.
Download from Www.Somanuals.com. All Manuals Search And Download.
ERVO
This user guide describes the electrical and mechanical aspects of the
MID-7654/7652 servo power motor drive and describes how to use
the MID-7654/7652 with your motion controller.
Conventions ............................................................................................ 2
Introduction ............................................................................................. 2
What You Need to Get Started ............................................................... 3
Safety Information .................................................................................. 3
Front Panel Switches............................................................................... 5
Host Bus Interlock Circuit ...................................................................... 6
Front Panel LEDs.................................................................................... 6
Amplifier Fault Output LEDs .......................................................... 7
Amplifier Inhibit LEDs.................................................................... 7
Limit Status LEDs ........................................................................... 7
Front Panel DIP Switch Settings............................................................. 8
Inhibit Input Polarity Setting ........................................................... 9
Inhibit Output Polarity Setting......................................................... 9
Limit Status LED Polarity Setting ................................................... 10
Setting Continuous and Peak Current Limits .................................. 10
Setting Motor Inductance Levels ..................................................... 13
Back Panel Connector Wiring................................................................. 15
Terminal Block Wiring .................................................................... 17
Servo Motor Power Terminal Blocks ....................................... 17
Rear Guard................................................................................ 19
Encoder Terminal Blocks ......................................................... 22
Limit Switch Terminal Blocks ................................................. 24
Breakpoint and Trigger Terminal Blocks ................................. 25
Analog I/O Terminal Blocks .................................................... 25
Step and Direction Terminal Block .......................................... 26
Cable Installation for CE Compliance ............................................. 27
Accessories Included for Optional Use................................................... 28
Strain-Relief Bar Installation ........................................................... 28
Panel Mount Kit Installation............................................................ 29
P
M
OWER
OTOR
D
RIVE
June 2001
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Summary of Contents for National Instruments MID-7654
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Page 1: Table Of Contents
Accessories Included for Optional Use........... 28 Strain-Relief Bar Installation ............28 Panel Mount Kit Installation............29 National Instruments™, NI™, and ni.com™ are trademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. 322691B-01 Copyright ©... -
Page 2: Conventions
Indicates the signal is active-low. Introduction Your MID-7654 or 7652 servo power motor drive is a complete power amplifier and system interface for use with four or two axes of simultaneous servo motion control, respectively. The MID-7654/7652 is ideal for industrial and laboratory applications and has everything you need to connect motors, encoders, limit switches, I/O, and other motion hardware to National Instruments motion controllers. -
Page 3: What You Need To Get Started
19-inch standard rack kit. What You Need to Get Started To set up and use your MID-7654/7652 accessory, you must have the following items: ❑ The MID-7654/7652 servo power motor drive with attached rear guard ❑... - Page 4 Failure to do so could result in electric shock leading to serious bodily injury or death. • The bottom surface of the MID-7654/7652 can get very hot to the touch under certain conditions. To avoid a burn hazard, refer to the Setting Continuous and Peak Current Limits...
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Page 5: Front Panel Switches
Front Panel Switches Figure 1 shows the front panel for your MID-7654/7652. The DIP switches are shown with the detachable metal cover plate removed. 4 Axis Servo Motor Drive 4 Axis Servo Motor Drive AXIS 1 AXIS 2 AXIS 3... -
Page 6: Host Bus Interlock Circuit
LED illuminates. If this LED fails to illuminate, check the power cord and the main input fuse on the front panel. An LED status array of 3 rows by 4 columns on the MID-7654 or 3 rows by 2 columns on the MID-7652 provides a variety of status information. -
Page 7: Amplifier Fault Output Leds
Amplifier Fault Output (red) Amplifier Inhibit (yellow) Limit Status (green) These LEDs only appear on the MID-7654. Amplifier Fault Output LEDs The top row of the LED status array indicates the status of the amplifiers. A red LED indicates an overcurrent condition, a short circuit condition, an over temperature condition, or a problem with the motor bus voltage on that axis. -
Page 8: Front Panel Dip Switch Settings
Front Panel DIP Switch Settings The MID-7654/7652 front panel has a detachable metal plate that, when removed, provides access to one 4-position DIP switch bank and either four (MID-7654) or two (MID-7652) 9-position DIP switch banks. Refer to Figure 1 for the location of these switches. -
Page 9: Inhibit Input Polarity Setting
DIP switch setting for the inhibit output polarity selection. Table 3. Inhibit Output Polarity DIP Switch Settings Switch Setting Operation Active-high (factory default) Active-low © National Instruments Corporation MID-7654/7652 Servo Power Motor Drive User Guide Download from Www.Somanuals.com. All Manuals Search And Download. -
Page 10: Limit Status Led Polarity Setting
The continuous current limit is the maximum current your motor can withstand indefinitely. The MID-7654/7652 varies the gain applied to the input voltage so the maximum input voltage corresponds to... - Page 11 –V Gain Applied –I peak Figure 5. Input Voltage to Output Current Relationship for Periods of Time Greater Than 2.7 Seconds © National Instruments Corporation MID-7654/7652 Servo Power Motor Drive User Guide Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 12 2 3 4 1.95 3.85 0.90 1.80 2 3 4 2 3 4 1.70 3.45 0.85 1.70 (default) (default) 2 3 4 2 3 4 MID-7654/7652 Servo Power Motor Drive User Guide ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
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Page 13: Setting Motor Inductance Levels
If you are connecting multiple motors to your MID-7654/7652, verify that the total power dissipated by the motors at any given time is less than the total power the drive can provide. If the total power requirement exceeds the capability of the drive at any point, the drive will provide less power to the motors than desired until the total power requirement drops back down. - Page 14 Table 7. Motor Inductance Level DIP Switch Settings Switch Setting Operation Low motor inductance Standard motor inductance (factory default) MID-7654/7652 Servo Power Motor Drive User Guide ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
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Page 15: Back Panel Connector Wiring
Back Panel Connector Wiring Figure 6 shows the MID-7654/7652 back panel connectors without their rear guards. MID-7654 MID-7652 1 Motion Controller Connector Encoder Limit Motor 2 Analog Input Connector Connectors Connectors Connectors 3 Analog Output Connector 8 Axis 1 12 Axis 1... - Page 16 Modifying the Power Entry Module section for more information. Caution You must change the MID-7654/7652 main input fuse on the rear panel if you change the line voltage from the factory setting. Refer to the Replacing a Fuse section in...
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Page 17: Terminal Block Wiring
The rear guard must be in place at all times while the unit is connected to a power outlet. Disconnect the MID-7654/7652 unit from power outlet before connecting wires to or disconnecting wires from the servo motor connectors. Strip back the insulation of the servo motor wires to the servo motor connectors no more than 7 mm. - Page 18 Motor + is greater than Negative voltage facing motor shaft Motor – Figure 8 shows clockwise and counter-clockwise motor rotation. Figure 8. Clockwise and Counter-Clockwise Motor Rotation MID-7654/7652 Servo Power Motor Drive User Guide ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
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Page 19: Rear Guard
3 Protection Plate 2 Protection Cover Figure 9. Rear Guard Consisting of the Protection Cover, Protection Plates, and Bottom Mounting Plate © National Instruments Corporation MID-7654/7652 Servo Power Motor Drive User Guide Download from Www.Somanuals.com. All Manuals Search And Download. - Page 20 The rear guard installed on the MID-7654/7652 is shown in Figure 10. Figure 10. Rear Guard Installed on the MID-7654/7652 The servo motor connectors on this drive are energized when the unit is powered Warning on. The rear guard must be in place at all times while the unit is connected to a power outlet.
- Page 21 1 and 2 in Figure 11. Contact your National Instruments sales representative to replace lost protection plates (part number 188063A-01). Remove the protection cover using the following procedure: Remove the two screws that attach the protection cover to the side of the bottom mounting plate, as shown in Figure 10.
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Page 22: Encoder Terminal Blocks
If the encoder cable length is greater than 10 ft, use encoders with line driver outputs for your applications. Power for a +5 V encoder—generated by a power supply inside the MID-7654/7652—is available on pin 7. MID-7654/7652 Servo Power Motor Drive User Guide ni.com... - Page 23 If you require other encoder power voltages, reference an external power supply to the Digital Ground signal on the 8-pin encoder terminal block. The MID-7654/7652 supports differential inputs for Phase A, Phase B, and Index signals. You can easily accommodate encoders with various phase relationships by swapping the signals and/or connecting them to the inverting inputs as required by your application.
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Page 24: Limit Switch Terminal Blocks
(Passive Limit Switch Connection Example) You can configure the inhibit output signal to be asserted low or asserted high from the MID-7654/7652 when an axis is inhibited. This signal can be useful for actuating mechanical brakes or for monitoring an axis status. -
Page 25: Breakpoint And Trigger Terminal Blocks
The breakpoint terminal block provides access to the breakpoint output lines, the +5 V supplied by the MID-7654/7652, and the digital ground. Figures 17 and 18 show the breakpoint and trigger 6-position terminal block assignments. -
Page 26: Step And Direction Terminal Block
To use the step and direction connector, select an unused axis on the MID-7654/7652 and connect the step and direction outputs for that axis to your stepper drive. Refer to Figure 21 for the terminal block pin assignments. -
Page 27: Cable Installation For Ce Compliance
Take the following additional steps to ensure CE Compliance: Enclose the terminal block wires in a 360-degree shielded cable. This requires a braided shield. Install the strain-relief bar on the MID-7654/7652 as described in the Accessories Included for Optional Use section of this guide. -
Page 28: Accessories Included For Optional Use
The arms of the strain-relief bar attach between the sides of the MID-7654/7652 and the bottom mounting plate of the rear guard with the thumb nuts facing upwards, as shown in Figure 23. Refer to the... -
Page 29: Panel Mount Kit Installation
The panel mount kit allows you to mount the MID-7654/7652 inside a cabinet or enclosure. Attach the panel mount kit to the rear and front set of screw holes on the side panels of the MID-7654/7652, as shown in Figure 24, using the provided screws. -
Page 30: Modifying The Power Entry Module
This section covers replacing fuses and switching the line voltage for your drive. Replacing a Fuse Follow these steps to replace a fuse on your MID-7654/7652: Pry open the hinged cover on the power entry module (number 7 in Figure 6). -
Page 31: Changing The Line Voltage
2. Close the hinged cover. Changing the Line Voltage Follow these steps to change the line voltage on your MID-7654/7652: Pry open the hinged cover on the power entry module (number 7 in Figure 6). - Page 32 Output high voltage ........2.4 V at 32 mA Trigger Input Noise filter (RC time constant)....100 ns Compatibility ..........Signal pass-through Breakpoint Outputs Compatibility ..........Signal pass-through MID-7654/7652 Servo Power Motor Drive User Guide ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 33 3.81 mm plug (1 total) Analog input........... 6-position mini-combicon 3.81 mm plug (1 total) Analog output......... 5-position mini-combicon 3.81 mm plug (1 total) © National Instruments Corporation MID-7654/7652 Servo Power Motor Drive User Guide Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 34 Host Bus Voltage Interlock Undervoltage threshold......4 VDC Physical Length .............30.6 by 25.4 by 8.8 cm (12.0 by 10 by 3.5 in.) Weight ............10.2 kg (22.5 lb.) MID-7654/7652 Servo Power Motor Drive User Guide ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 35 DoC will appear in Adobe Acrobat format. Click on the Acrobat icon to download or read the DoC. © National Instruments Corporation MID-7654/7652 Servo Power Motor Drive User Guide Download from Www.Somanuals.com. All Manuals Search And Download.
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Page 36: Technical Support Resources
Technical Support Resources NI Web Support National Instruments Web support is your first stop for help in solving installation, configuration, and application problems and questions. Online problem-solving and diagnostic resources include frequently asked questions, knowledge bases, product-specific troubleshooting wizards, manuals, drivers, software updates, and more. Web support is available through the Technical Support section of ni.com... - Page 37 Free Manuals Download Website h p://myh66.com h p://usermanuals.us h p://www.somanuals.com h p://www.4manuals.cc h p://www.manual-lib.com h p://www.404manual.com h p://www.luxmanual.com h p://aubethermostatmanual.com Golf course search by state h p://golfingnear.com Email search by domain h p://emailbydomain.com Auto manuals search h p://auto.somanuals.com TV manuals search h p://tv.somanuals.com...