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 National Instruments Corporation

27

MID-7654/7652 Servo Power Motor Drive User Guide

Limit and Home Switch Inputs

Compatibility .........................................................Signal pass-through

Inhibit Inputs

Voltage range .........................................................0–12 VDC

Input low voltage ...................................................0.8 V

Input high voltage ..................................................2 V

Inhibit Outputs

Voltage range .........................................................0–5 VDC

Output low voltage.................................................0.5 V at 64 mA

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

Analog Inputs

Noise filter (RC time constant) ..............................10 

μ

s

Compatibility .........................................................Signal pass-through

Analog Outputs

Compatibility .........................................................Signal pass-through

Step/Direction Outputs

Compatibility .........................................................Signal pass-through

Shutdown Input

Compatibility .........................................................Signal pass-through

User 5 V Supply

Voltage range @ 0.5 A...........................................4.7 to 5.2 V

Included Connectors

Encoders.................................................................8-position mini-combicon 3.81 mm plug (1 per axis)

Limits .....................................................................6-position mini-combicon 3.81 mm plug (1 per axis)

Servo Motors..........................................................5-position combicon 5.08 mm plug (1 per axis)

Breakpoints ............................................................6-position mini-combicon 3.81 mm plug (1 total)

Triggers ..................................................................6-position mini-combicon 3.81 mm plug (1 total)

Step/Direction ........................................................8-position mini-combicon 3.81 mm plug (1 total)

Analog input ..........................................................6-position mini-combicon 3.81 mm plug (1 total)

Содержание NI MID-7654

Страница 1: ...l Instruments MID 7654 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 MI...

Страница 2: ...Inhibit Input Polarity Setting 9 Inhibit Output Polarity Setting 9 Limit Status LED Polarity Setting 9 Setting Continuous and Peak Current Limits 10 Setting Motor Inductance Levels 13 Back Panel Conne...

Страница 3: ...mes and extensions overline Indicates the signal is active low Introduction The National Instruments MID 7654 7652 servo power motor drive is a complete power amplifier and system interface for use wi...

Страница 4: ...ith the chassis modules accessories and cables specified in the installation instructions or specifications You must have all covers and filler panels installed during operation of the hardware Do not...

Страница 5: ...for sealed components or coated PCBs Pollution Degree 2 means that only nonconductive pollution occurs in most cases Occasionally however a temporary conductivity caused by condensation must be expect...

Страница 6: ...equirements there is no guarantee that interference will not occur in a particular installation To minimize the potential for the hardware to cause interference to radio and television reception or to...

Страница 7: ...wer LED labeled 5 V illuminates If this LED fails to illuminate check the power cord and main input fuse on the back panel The ENABLE switch enables or inhibits the servo amplifiers If the ENABLE swit...

Страница 8: ...he green power 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...

Страница 9: ...or the location of these switches Use the DIP switches on the 4 position DIP switch bank to configure the inhibit in inhibit out and limit status LED polarity as shown in Figure 2 The different settin...

Страница 10: ...tch 2 is active high Table 3 shows the DIP switch setting for the inhibit output polarity selection Limit Status LED Polarity Setting Use DIP switch 3 on the 4 position DIP switch bank to globally set...

Страница 11: ...avoid overheating the drive under a motor fault condition ensure the following error limit is set above zero in the motion controller configuration software The default following error limit is 32 76...

Страница 12: ...n each of the 9 position DIP switch banks to set the continuous current limit for each axis Use DIP switches 5 through 8 on each of the 9 position DIP switch banks to set the peak current limit for ea...

Страница 13: ...combined add up the maximum power each motor can dissipate If this value is less than or equal to 400 W at 25 duty cycle you will not exceed the capabilities of the MID 7654 7652 If the value is great...

Страница 14: ...ttings Use the last DIP switch on each of the 9 position DIP switch banks to set the motor inductance level for each axis Refer to Figures 1 and 3 for the location of the of the motor inductance level...

Страница 15: ...ABLE and AC POWER switches for your MID 7654 7652 and host computer and disconnect the unit from the power outlet before making connections to your motion controller 1 Motion Controller Connector 2 An...

Страница 16: ...r information on changing a fuse 3 Install the power cord into the back panel AC connector and plug it into a correctly rated power source Terminal Block Wiring This section describes how to wire the...

Страница 17: ...directional polarity Figure 8 shows clockwise and counter clockwise motor rotation Figure 8 Clockwise and Counter Clockwise Motor Rotation Rear Guard The rear guard consists of the protection cover p...

Страница 18: ...ard Consisting of the Protection Cover Protection Plates and Bottom Mounting Plate The rear guard installed on the MID 7654 7652 is shown in Figure 10 Figure 10 Rear Guard Installed on the MID 7654 76...

Страница 19: ...off and disconnected from the power outlet 2 Ensure that the bottom mounting plate of the rear guard is securely fastened to both sides of the MID 7654 7652 as shown in Figure 10 3 Remove the protecti...

Страница 20: ...he MID 7654 7652 accepts two types of encoder signal inputs single ended TTL or differential line driver You can accommodate open collector output encoders by using 2 2 k pullup resistors to 5 VDC Fig...

Страница 21: ...ows the proper encoder phasing for CW forward motor rotation Figure 14 Encoder Signal Phasing CW Rotation Closed loop servo applications require consistent directional polarity between the motor and e...

Страница 22: ...an axis status Refer to the Amplifier Inhibit LEDs section of this guide for a description of the conditions that will cause an axis to be inhibited Breakpoint and Trigger Terminal Blocks Both the br...

Страница 23: ...gh the drive allowing you to access them through the 8 pin removable terminal block This feature is useful if your system includes both stepper and servo motors as it reduces the amount of custom cabl...

Страница 24: ...ust not overlap each other as shown in Figure 22 4 All cables must be properly grounded to the strain relief bar which grounds them to the MID 7654 7652 chassis ground Follow these steps to ground the...

Страница 25: ...bottom mounting plate of the rear guard with the thumb nuts facing upwards as shown in Figure 23 Refer to the Rear Guard section of this guide for more information on removing and replacing the protec...

Страница 26: ...s of the bottom mounting plate 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...

Страница 27: ...velocity loop and position loop using an enhanced PID algorithm Specifications The following specifications apply only to the MID 7654 7652 You must account for your motion controller to obtain a sys...

Страница 28: ...ise filter RC time constant 10 s Compatibility Signal pass through Analog Outputs Compatibility Signal pass through Step Direction Outputs Compatibility Signal pass through Shutdown Input Compatibilit...

Страница 29: ...F Storage temperature 20 to 70 C 4 to 158 F Humidity 10 to 90 RH noncondensing Maximum altitude 2 000 m Pollution Degree 2 Host Bus Voltage Interlock Undervoltage threshold 4 VDC Physical Dimensions W...

Страница 30: ...for this product visit ni com certification search by module number or product line and click the appropriate link in the Certification column Environmental Management National Instruments is committe...

Страница 31: ...r electromagnetic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com certification If your product supports calibration you can obtain the calibration cert...

Страница 32: ...r respective companies 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...

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