Related Manuals for National Instruments MID-7602
Summary of Contents for National Instruments MID-7602
- Page 1 National Instruments MID-7602 Manual Get Pricing & Availability at ApexWaves.com Call Today: 1-800-915-6216 Email: sales@apexwaves.com https://www.apexwaves.com/modular-systems/national-instruments/motor-drives/MID-7602...
-
Page 2: Table Of Contents
USER GUIDE AND SPECIFICATIONS MID-7604/7602 Stepper Power Motor Drive This user guide describes the electrical and mechanical aspects of the MID-7604/7602 stepper power motor drive and how to use the MID-7604/7602 with your motion controller. Contents Conventions ............................2 Introduction............................2 What You Need to Get Started ...................... -
Page 3: Conventions
Indicates the signal is active low. Introduction The National Instruments MID-7604/7602 power drive is a complete power amplifier and system interface for use with four or two axes of simultaneous stepper motion control. Ideally suited to industrial and laboratory applications, the MID-7604/7602 has everything you need to connect motors, encoders, limit switches, I/O, and other motion hardware to National Instruments motion controllers. -
Page 4: Safety Information
Misuse of the hardware can result in a hazard. You can compromise the safety protection if the hardware is damaged in any way. If the hardware is damaged, return it to National Instruments for repair. Clean the hardware with a soft, nonmetallic brush. Make sure that the hardware is completely dry and free from contaminants before returning it to service. - Page 5 Operate the hardware only at or below Pollution Degree 2. Pollution is foreign matter in a solid, liquid, or gaseous state that can reduce dielectric strength or surface resistivity. The following is a description of pollution degrees: • Pollution Degree 1 means no pollution or only dry, nonconductive pollution occurs. The pollution has no influence.
-
Page 6: Electromagnetic Compatibility Information
Operation of this hardware in a residential area is likely to cause harmful interference. Users are required to correct the interference at their own expense or cease operation of the hardware. Changes or modifications not expressly approved by National Instruments could void the user’s right to operate the hardware under the local regulatory rules. -
Page 7: Front Panel Switches
Front Panel Switches Figure 1 shows the front panel of your MID-7604/7602. The DIP switches are shown with the detachable metal cover plate removed. AXIS CONFIGURATION LINE VOLTAGE SELECT AC POWER FUSE ENABLE FAULTS INHIBITS LIMITS + 5V AXIS Main Input Fuse Enable Switch Axis 3 DIP Switch Bank* Line Voltage Select Switch... -
Page 8: Back Panel Connector Wiring
230 VAC, 50 Hz operation. For proper operation, you must set this switch to match your power source. Finally, install the power cord into the back panel AC connector and plug it in to a correctly rated power source. © National Instruments Corporation MID-7604/7602 Stepper Power Motor Drive User Guide... -
Page 9: Host Bus Interlock Circuit
Host Bus Interlock Circuit The MID-7604/7602 has a host bus interlock circuit that monitors the presence of +5 V from the host computer and disables the MID-7604/7602 when the voltage is not present or falls out of tolerance. This circuit shuts down the stepper drives for all axes by activating the inhibit when the host computer is disconnected from the MID-7604/7602 or inadvertently shut down. -
Page 10: Limit Status Leds
9 10 Peak Current Output Switches Global Polarity Switch (unused on axes 3 and 4 DIP Microstep Rate Switches switch banks) Current Reduction Switch Figure 3. DIP Switch Bank Layout © National Instruments Corporation MID-7604/7602 Stepper Power Motor Drive User Guide... -
Page 11: Microstepping Selection
Microstepping Selection The MID-7604/7602 uses bipolar chopper, two-phase microstepping drivers with a broad range of microstep rates. The factory default setting is 10-times microstepping (2,000 steps/rev with standard 1.8º stepper motors). Table 2 shows the DIP switch settings for all possible microstep settings. DIP switches 6 through 9 control the microstep rate on a per-axis basis. -
Page 12: Output Current Settings
MID-7604/7602, since it is unlikely you will run all of your motors simultaneously at their maximum levels. Make a reasonable estimation of the maximum power your motors will require at any given time and verify that this value is less than 80 W continuous. © National Instruments Corporation MID-7604/7602 Stepper Power Motor Drive User Guide... -
Page 13: Inhibit Input Polarity Setting
You can configure the MID-7604/7602 stepper drivers in a current reduction mode on a per-axis basis. This configuration is useful to minimize motor heating when you are not stepping. With current reduction enabled, the current decreases by 50% when no stepping has occurred for approximately 500 ms. -
Page 14: Limit Status Led Polarity Setting
Strip back the insulation of the stepper wires to the stepper connectors no more than 7 mm. Failure to do so could result in electric shock leading to serious bodily injury or death. © National Instruments Corporation MID-7604/7602 Stepper Power Motor Drive User Guide... -
Page 15: Encoder Terminal Blocks
Use shielded, 20 AWG wire or larger for the motor power cable. If available, you should connect a case ground wire to pin 3 (Ground/Shield) to avoid ground loops and signal noise problems. Case ground connects to the motor housing, not to the motor power terminals. The MID-7604/7602 contains bipolar chopper drivers. - Page 16 Index Figure 7. Encoder Signal Phasing, CW Rotation Closed-loop stepper applications require consistent directional polarity between the motor and encoder for correct operation. The National Instruments motion control standard directional polarity is as follows: • Positive = forward = clockwise (CW) facing motor shaft •...
-
Page 17: Limit Switch Terminal Blocks
When connecting the encoder wiring to your MID-7604/7602, use shielded wire of at least 24 AWG. Analog noise filters filter the encoder inputs in the MID-7604/7602. You must use cables with twisted pairs and an overall shield for improved noise immunity and enhanced encoder signal integrity. Figure 9 shows twisted pairs in a shielded cable. -
Page 18: Breakpoint And Trigger Terminal Blocks
Refer to Figures 13 and 14 for terminal block pin assignments. Analog Input 1 Analog Input 2 Analog Input 3 Analog Input 4 Analog Reference (Output) Analog Input Ground Figure 13. Analog Input Terminal Block Pin Assignment © National Instruments Corporation MID-7604/7602 Stepper Power Motor Drive User Guide... -
Page 19: Accessories For Optional Use
Analog Output 1 Analog Output 2 Analog Output 3 Analog Output 4 Analog Output Ground Figure 14. Analog Output Terminal Block Pin Assignment Accessories for Optional Use Strain-Relief Bar The strain-relief bar provides strain relief for wiring to the back panel terminals of the MID-7604/7602. The arms of the strain-relief bar attach to the sides of the MID-7604/7602 with the thumb nuts facing upward, as shown in Figure 15. -
Page 20: Panel-Mount Kit (Included)
Step and Direction signals with active high polarity. Note You can use National Instruments Measurement & Automation Explorer (MAX) to configure the stepper polarity for your NI motion controller. © National Instruments Corporation... -
Page 21: Stepper Motor Configurations
Stepper Motor Configurations This section describes the various industry-standard winding configurations for stepper motors and shows how to connect them to a MID-7604/7602. The MID-7604/7602 is compatible with all configurations of two-phase stepper motors. Note The MID-7604/7602 is not compatible with five-lead unipolar stepper motors or five-phase stepper motors. - Page 22 Phase B Phase A Phase B-CT Phase A Phase B-CT Motor Case Ground Ground Phase B Phase B Phase B Shield Figure 20. Half-Coil Stepper Motor Wiring © National Instruments Corporation MID-7604/7602 Stepper Power Motor Drive User Guide...
-
Page 23: Specifications
Figure 21 shows the wiring for a typical 4-wire motor. Phase B Phase A Phase A Motor Case Ground Ground Phase B Phase B Phase B Shield Figure 21. 4-Wire Motor Wiring Specifications The following specifications apply only to the MID-7604/7602. To obtain a complete system specification, you must account for your motion controller. - Page 24 115 VAC input (factory default) ....F3A 250V (Bussmann #GMA-3) 230 VAC input ..........F1.5A 250V (Bussmann #GMA-1.5) Dimensions ............5 mm 20 mm Host Bus Voltage Interlock Undervoltage threshold..........4 VDC © National Instruments Corporation MID-7604/7602 Stepper Power Motor Drive User Guide...
- Page 25 Physical Characteristics Dimensions (W H L) ........25.4 cm 4.3 cm 30.7 cm (10 in. 1.7 in. 12.1 in.) Weight ..............4.5 kg (10 lb.) Environment Operating temperature ...........0 ºC to 40 ºC Storage temperature ..........–20 ºC to 70 ºC Humidity ..............10% to 90% RH, noncondensing Maximum altitude..........2,000 m Pollution Degree ............2...
- Page 26 Certification column. Environmental Management National Instruments is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial not only to the environment but also to NI customers.
-
Page 27: Where To Go For Support
National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. National Instruments also has offices located around the world to help address your support needs. For telephone support in the United States, create your service request at ni.com/... - Page 28 For patents covering National Instruments products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the National Instruments Patent Notice at ni.com/patents. Refer to the Export Compliance Information at ni.com/legal/ export-compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data.
Need help?
Do you have a question about the MID-7602 and is the answer not in the manual?
Questions and answers