MS483 MICROSTEPPING DRIVE - Motion Solutions€¦ · Vertex Linears MS483 Microstepping drive is a...

High Performance, customizable microstepping drive.

Vertex Linears MS483 is a high performance, low cost microstepping drive that incorporates advanced surface mount and ASIC technology. The MS483 is small, easy to interface and use, yet powerfull enough to handle the most demanding applications.

MS483 MICROSTEPPING DRIVE

Specialists in custom precision motion control

VERTEX LINEAR | 21 ARGONAUT, ALISO VIEJO, CALIFORNIA 92656 | 1-949-586-8466 | VERTEXLINEAR.COM

MS483 Vertex Linears MS483 Microstepping drive is a from-the-ground-up stepper motor controller de-sign and uses multiple proprietary techniques to run a stepper motor smoother, quieter and with more power than other drives in its price range. This document seeks to quickly get your MS483 up and running and will explain each new feature and its utility for your application.

About UsFounded in 1956, Vertex Linears has always brought the latest technologies to the marketplace. Through the years, customers have come to count on us for honest, practical answers and the most cost-effective solutions to their electro-mechanical needs.As specialists in high-tech markets such as semiconductor Capital Equipment, medical equipment, aerospace, and robotics, we provide a multitude of components, both mechanical and electrical, to address all your motion control needs.

Our TeamOur two California offices are staffed with sales and engineering professionals ready to respond to your design requirements as well as provide you with technical and sales information. The Northern California office is situated near the heart of Silicon Valley. Our Southern California warehouse and headquarters (3rd Party Certification to ISO 9001 and ISO 13485) is located in Aliso Viejo, Orange County. Functioning as an authorized distributor, we offer immediate deliveries of many specialty items, including one of the largest linear motion bearing inventories in the country. Matching quality parts to your specifications is our prime interest. Backing those products with engineering support and superior service reaffirms our long-time commitment to customer satisfaction. Contact us for all your electro-mechanical requirements. See for yourself why Vertex Linear has earned a reputation for high-quality

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MS483 Key Features• Push Button Self-Test

• User adjustable standby current

• Resolution upscaling at low speeds

• High and Low power pinout connectors

• Electrical Ratings: 8A Continuous / 80 VDC Max

• Form, fit, and function compatibility with IM483 and IM805

• Midband instability and resonance is compensated for using all new algorithms, eliminating resonant frequencies at the midband

• Ranging from half-step to 256-microstep resolution, a stepper motor

can be run with resolution of up to 51,200 pulses per revolution

• Backwards compatibility with decimal resolution motor controls


Physical Dimensions and Pinout

MS483 Microstepping drive There are two connectors on the MS483: A high power connector for motor and power supply connections called CN1 and a low power signal connector for I/O called CN2. The pinouts from left to right while facing the connector are below:

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PIN NUMBER CN1 CN2

PIN 1 STANDBY OPTOISOLATOR GROUND

PIN 2 CURRENT SET STEP

PIN 3 GROUND DIRECTION

PIN 4 SUPPLY DC+ OPTOISOLATOR +5V

PIN 5 PHASE / B ENABLE

PIN 6 PHASE B RESET

PIN 7 PHASE / A FAULT

PIN 8 PHASE A FULL STEP OUT

Mechanical Drawing


Applying Power POWER SUPPLY HOOK UP

CN1 PIN 4 POWER GROUND, CONNECT THE POWER SUPPLY GROUND TO THIS TERMINALCN1 PIN 5 POWER (+), CONNECT THE POWER SUPPLY “+” TO THIS TERMINAL

The power supply voltage must be between 18 VDC and 80 VDC. The maximum power supply current re-quired is 67% of the motor’s rated phase current. An unregulated power supply may be used as long as the voltage stays between the limits; keep the ripple voltage to 10% or less for best results. The drive has a 2 second power-on reset time before the motor is energized.

CAUTION! Power supply voltage in excess of 80 VDC will damage the MS483. The choice of power supply voltage depends on the high speed performance required of the motor; doubling the voltage doubles voltage greater than 25 times the motor’s rated voltage will overheat and dam-age the motor, even if it is not turning. Motor winding inductance should be 500uH or greater, but generally no more than 7mH for best performance. A practical limit for stepper motors is 50mH.

A more accurate calculation of maximum power supply voltage is to find your motor’s inductance, and put it into the following equation.

32 * (√mH inductance) = Power Supply Voltage

If your motor has 2mH of inductance, the equation would look as follows.

32 * (√2) = 45.12V

That motor’s maximum power supply would be 45VDC. All power supply voltages below that limit will work without unnecessarily heating the motor.

Motor Connection PIN DESCRIPTION

CN1 PIN 5 PHASE /B CONNECT ONE MOTOR WINDING TO THIS TERMINAL

CN1 PIN 6 PHASE B CONNECT THE OTHER END OF THE WINDING TO THIS TERMINAL

CN1 PIN 7 PHASE /A CONNECT THE OTHER MOTOR WINDING TO THIS TERMINAL

CN1 PIN 8 PHASE A CONNECT THE OTHER END OF THE WINDING TO THIS TERMINAL


Connect one motor winding to terminals 5 and 6. Connect the other winding to terminals 7 and 8. Turn the power supply off when connecting or disconnecting the motor. If the motor turns in the wrong direction, reverse the motor winding connections to terminals 5 and 6.

4-wire, 6-wire and 8-wire motor may be used. When 6-wire motors are used, they may be con-nected in half winding or full winding. This is equivalent to an 8-wire motor connected in paral-lel or series. If a motor is connected in series or full winding, the motor’s phase current rating is half of its parallel or unipolar rating. The choice depends on the high-speed performance required; a parallel-connected motor will provide twice the power of a series-connected motor at the same power supply voltage.

Motor Connection Cont.

Setting Motor Phase CurrentMotor phase current may be set one of three ways: The onboard DIP switches, an external current set resistor or an external voltage input. All current settings will be in reference to the single phase peak current of the stepper motor.

ONBOARD DIP SWITCH SETTINGPlease consult the diagram below for the proper switch setting for your motor phase current. Leave CN1 PIN2 floating if this option is being used.

0.000.110.220.330.440.550.660.770.880.991.101.211.321.431.541.651.761.871.982.092.202.312.422.532.642.752.862.973.083.193.303.41

3.523.633.743.853.964.074.184.294.404.514.624.734.844.955.065.175.285.395.505.615.725.835.946.056.166.276.386.496.606.716.826.93

SW5 SW6 SW7 SW8 SW9 SW10SW5 SW6 SW7 SW8 SW9 SW10CURRENT CURRENT

5102550125250TBDTBD

248163264128256

SW1 SW2 SW3 SW4 RESOLUTION

ON =

OFF =

LEGEND


An external current set resistor can be used, which will be connected between CN1 PIN 2 (Current Set) and CN1 PIN 3 (GND). The formula for the current set resistor is below:

RI = IPEAK x 500

For a 3.2A motor the equation would look like below:

RI = 3.2 x 500RI = 1600

This would mean a 1.6K resistor would be the calculated resistance value. If the calculated resis-tance is a nonstandard value, it is safe to use the closest 5% resistor that is less than the calculated value. For instance, a 4.6A motor would need a 2.3K resistor; the nearest 5% value is a 2.2K resistor which would result in roughly 96% of the motor’s rated current (4.4A). The resistor leads should be kept as short as possible to prevent noise problems.

Some applications may require that current be controlled by an external voltage, either from a microcontroller or a discrete circuit. In order to do this you can calculate the required voltage by using the formula below:

FORMULAFor a 3.2A motor the equation would look like below:

VIN = 3.2 x WHATEVERVIN = VOLTAGE

It is not recommended to change operating current to less than 70% of the motor’s rated current. Although no damage will come to the motor or the MS483, there will be inconsistent performance from the motor due to insufficient winding saturation.

External Current Set Resistor

External Voltage Input

Setting Standby CurrentAfter the MS483 has not received step pulses for one second it will enter standby mode, where it will limit current to a user-set percentage of maximum current. The MS483 will enter re-duced-heating switching mode during this time to further decrease motor temperature during times of inactivity. There are two ways to set the standby current value.


One of the two trimpots on the MS483 is dedicated to setting the standby current value. Turn-ing this fully CCW (8 o’clock) will reduce current to 0% of the set value, while turning it fully CW (4 o’clock) will set the standby current to 100% of set current. This trimpot is a single turn component with a total range of approximately 270° of motion. A diagram of the adjustment trimpot is below:

Onboard Standby Trimpot

An external resistor can be used to set the standby current on the MS483 in lieu of using the on-board trimpot. If any method of current set but the DIP switch is used then this is the mandatory way of setting standby current. This resistor will be placed between CN1 PIN 1 (Standby Set) and CN1 PIN 3 (GND) The formula for the resistor is below:

R2 = 500 * (Run Amps * Standby Amps) / (Run Amps – Standby Amps)

If a motor is rated for 6A and a standby current of 2A is required, the formula would be worked out as below:

R2 = 500 * (6A * 2A) / (6A – 2A)R2 = 500 * 12 / 4

R2 = 1500

In this example you would want to use a 1.5K resistor between CN1 PIN 1 (Standby Set) and CN1 PIN 3 (GND). Component tolerance for this setting can be 5%, so the nearest 5% resistor value to the calculated value is acceptable. As with the current set resistor, the component leads should be kept as short as possible to prevent noise problems.

External Standyby Resistor


Once the motor is connected to the MS483 power may be applied to the drive. The motor should have holding torque (resist being rotated by hand) and the green indicator LED should be blink-ing. You may now begin self-test and tuning.

In order to use the onboard self-test you will need to locate the button near TRIM1. The button should be pushed with either a finger (without the cover) or with a blunt nonconductive rod (like a ceramic screwdriver or plastic dowel). As long as the button is depressed the motor will move one revolution CW and one revolution CCW; the speed of the motor is such that you can use it to tune out any low speed vibration with the ADJUST trimpot.

With the motor tuned and verified to run correctly, you may move on to the fourth and final step to getting the drive to run.

Push-Button Self-Test to Verify Motor Connections

CN2 PIN 1 Signal GNDThis pin is optional. This pin must connect to the controller ground terminal if the drive’s FAULT a nd FULL-STEP outputs are going to be used;otherwise it can be left unconnected.

CN2 PIN2

Step This input pin connects to the controller’s STEP output. The input accepts 3.3V and 5V logic level signals; if 3.3V logic is used, a 3.3VDC supply voltage from the controller must be connected to Pin 4. The maximum step pulse frequency is 2.5 MHz, the minimum logic ‘0’ time is 200ns and the minimum logic ‘1’ time is 200ns. The STEP input current is -2.5 mA with 3.3V logic and -5 mA when 5V logic is used. Stepping occurs on the positive going edge of the STEP input.

CN2 PIN3 Direction This input pin connects to the controller’s DIRECTION output. The input accepts 3.3V and 5V logic level signals; if 3.3V logic is used, a 3.3VDC supply voltage from the controller must be connected to Pin 4. The minimum setup time is 0ns and the minimum hold time is 500ns. The DIRECTION input current is -2.5mA with 3.3V logic and -5mA when 5V logic is used.

CN2 PIN4 Common This pin connects to the controller’s +5VDC supply terminal if 5V logic is used or a +3.3VDC supply terminal if 3.3V logic signals are used. The maximum current draw from the supply is 15mA at +5VDC or 8mA at +3.3VDC. The absolute maxi-mum voltage limits to this pin is -0.3VDC and +6VDC.

CONNECTING STEP AND DIRECTION SIGNALS


All control inputs on the MS483 are optoisolated for protection. The user may connect +3.3VDC or +5VDC to control supply inputs and the maximum current draw will be 15mA on all inputs. An explanation for each input is below:

RESET: This pin is optional. This pin connects to the controller’s RESET output; otherwise it can be left unconnected. A logic ‘1’ on this pin allows the drive to run the motor if the ENABLE input is a logic ‘1’ or unconnected. A logic ‘0’ resets the drive’s internal microstep counter to zero, phase A ‘off’ and phase B ‘on’. The RESET input should be used if it’s necessary to have an emergency stop input. Cycling the RESET input (hold at logic ‘0’ for one second, then at logic ‘1’) also clears latched fault conditions such as short-circuit and over-temperature protection provided the triggering cause has been cleared. If no latched faults exist, the minimum RESET logic ‘0’ time is 20us.

ENABLE: Freewheels motor and stops all motor switching when a logic ‘0’ is applied. The motor will have no holding torque and can be manually manipulated. Upon a logic ‘1’ being applied the MS483 will move the motor to the nearest full step location.

STEP: A step pulse frequency is applied to this input to move the motor. The frequency and speed will depend on the microstep resolution chosen. The maximum frequency input is 2.5 MHz, allowing for a maximum speed of 2,929 RPM at the highest resolution of the MS483. A chart for pulses per revolution on a standard 1.8 degree stepper motor is below.

Binary Resolutions Pulses Per Revolution

2 4004 8005 1,0008 1,600

10 2,00016 3,20025 5,00032 6,40050 10,00064 12,800125 25,000128 25,600250 50,000256 51,200

Understanding InputsSTEP, DIRECTION, COMMON, FAULT, AND ENABLE


DIRECTION: When a logic ‘0’ is applied the MS483 will move clockwise. When a logic ‘1’ is applied the MS483 will move counter clockwise. This input is a non-latching input and must be held at the desired logic level for as long as the motor must move that direction.

Understanding Inputs Cont.

The two outputs on the MS483, FULLSTEP and FAULT, are covered below.

Understanding Outputs

EXPLAINATION OF FEATURES

Sub-Microstepping: At certain microstep resolutions the MS483 will interpolate microsteps between rougher resolution choices. This means that the motor will move with the smoothness of a higher resolution option but will still have the lower input frequency requirement of the se-lected resolution. When operating in 2uStep, 4uStep and 8uStep modes the drive will interpolate to 16uStep motor smoothness. When operating at 5uStep the MS483 will interpolate to 10uStep smoothness. Higher levels of interpolation have significantly diminished returns, which is why this affects only lower resolution choices.

Resonance Compensation: Using an entirely new method of motor control allows the MS483 to eliminate nearly all resonance. The two-tier system the drive uses eliminates resonance at the 1st and 2nd harmonic and at the midband, increasing torque and motor stability in unstable step motor regions.

Full Step Morphing: The MS483 has full step morphing. Between 3 – 6 RPS the drive will morph from microstepping to a true full step output to the motor, increasing high speed motor torque by 40% over a microstepping only driver. This requires no input from the user and the drive will not need any modifications in the software controlling it to take advantage of this.

Soft Start: Step motors without a soft start drive operating them can draw significant inrush cur-rent. The MS483 ramps up current to the motor to avoid startup noise and premature tripping of protection circuitry due to sudden current loads.

Spread Spectrum PWM: Most stepper controls have a fixed switching frequency which leads to motor harmonics and large EMI outputs. With spread spectrum PWM the MS483 switches random-ly between switching frequencies at every step, eliminating harmonic knocking and EMI interfer-ence.

Self-Test: A push button is used on the MS483 to allow for quick in-the-field testing of the drive’s core functionality. With a motor and power supply connected correctly the motor will turn at 1 RPS clockwise and counter-clockwise as long as the button is held down. This button input will take priority over all other input signals, meaning if STEP and DIRECTION are connected and the button is held down the MS483 will move in self-test mode.


Protection Circuitry: The MS483 has rugged protection features to prevent damage in the ma-jority of catastrophic events. It is protected against short-circuit, under-voltage, over-voltage, and over-temperature. The protection circuit will also detect an open motor phase and an unconnect-ed motor. To clear a FAULT state the RESET input must be cycled to logic ‘0’ for one second and then returned to a floating or logic ‘1’ state.

MS483 Featured Manual Data

Electrical:0 to 7 Amps per phase+18 to +80 VDC power supply range15 Watt drive heat dissipation at 7 Amps per phase

Current Set:Phase current set via external resistor (500 Ohms per Amp) or internal DIP switchStandby current set via external resistor or internal trimpot (0 to 100%)Standby uses reduced motor heating switching mode

Test:Self test push-button runs motor 1 revolution CW / CCW (no STP/DIR input needed)

Detect and Protection:Short-circuit detect and protection; cleared by cycling RESET inputUnder-voltage detect and protectionOver-temperature detect and protectionFuse protection on power supply inputOpen motor phase detect*No motor detect*

Indicators:Blown power fuse indicator LED2 indicator LEDs (green and red) can show up to 10 different drive conditions*

Control Outputs:All control outputs are opto-isolated and CMOS bufferedOutputs are compatible 5VDC and 3.3VDC logicZero microstep state on FULL-STEP outputFAULT output indicates errors; can be set as 4800 baud TTL-level UART*


MS483 Featured Manual Data Cont.

Mechanical:Drive dimensions are 3.00" W, 2.75" D, 0.75" H Drive dimensions are 76.2mm W, 69.9mm D, 19.1mm HMounting hole pattern is 2.42" W, 2.45" D, 0.2" diameter, 4 placesMounting hole pattern is 61.5mm W, 62.2mm D, 5mm diameter, 4 placesModular 10 Amp rated terminal block connectors (5mm or optional 0.2" pitch)*

Environmental:0C to 75C operating temperatureHumidity 0 to 95%, non-condensing

*Not implemented yet

Please see the Motor Wiring Guide for how to connect 6-wire and 8-wire motors to the drive. Please use a multimeter to verify there is continuity between pins 5 and 6, then pins 7 and 8 before powering up the drive.

Control Interface ConnectorNOTE: All 8 pins on this connector are optoisolated and there is no galvanic connection from them to the drive.

PIN 1 GND: This pin is optional. This pin must connect to the controller ground terminal if the drive’s FAULT and FULL-STEP outputs are going to be used; otherwise it can be left unconnected.

PIN 2 STEP: This input pin connects to the controller’s STEP output. The input accepts 3.3V and 5V logic level signals; if 3.3V logic is used, a 3.3VDC supply voltage from the controller must be connected to Pin 4. The maximum step pulse frequency is 2.5 MHz, the minimum logic ‘0’ time is 200ns and the minimum logic ‘1’ time is 200ns. The STEP input current is -2.5 mA with 3.3V logic and -5 mA when 5V logic is used. Stepping occurs on the positive going edge of the STEP input.

PIN 3 DIRECTION: This input pin connects to the controller’s DIRECTION output. The input accepts 3.3V and 5V logic level signals; if 3.3V logic is used, a 3.3VDC supply voltage from the controller must be connected to Pin 4. The minimum setup time is 0ns and the minimum hold time is 500ns. The DIRECTION input current is -2.5mA with 3.3V logic and -5mA when 5V logic is used.

PIN 4 +5VDC: This pin connects to the controller’s +5VDC supply terminal if 5V logic is used or a +3.3VDC supply terminal if 3.3V logic signals are used. The maximum current draw from the supply is 15mA at +5VDC or 8mA at +3.3VDC. The absolute maximum voltage limits to this pin is -0.3VDC and +6VDC.


PIN 5 ENABLE: This pin is optional. This pin connects to the controller’s ENABLE output; other-wise it can be left unconnected. A logic ‘1’ on this pin enables the drive and allows it to operate the motor. The drive is disabled when a logic ‘0’ is applied to this pin. During disable, the motor current goes to zero, freewheeling the motor and all switching activity stops on the motor connections. The internal microstep counter retains its contents while disabled.

PIN 6 RESET: This pin is optional. This pin connects to the controller’s RESET output; otherwise it can be left unconnected. A logic ‘1’ on this pin allows the drive to run the motor if the ENABLE input is a logic ‘1’ or unconnected. A logic ‘0’ resets the drive’s internal microstep counter to zero, phase A ‘off’ and phase B ‘on’. The RESET input should be used if it’s necessary to have an emergency stop input.

Cycling the RESET input (hold at ‘0’ for one second, then ‘1’) also clears latched fault conditions such as short-circuit and over-temperature protection provided the triggering cause has been cleared. If no latched faults exist, the minimum RESET logic ‘0’ time is 20us.

PIN 7 FAULT: This pin is optional. The controller ground must be connected to pin 1 if this output is used. The totem-pole output is a logic ‘0’ if a short-circuit or over-temperature FAULT exists. Op-tionally the FAULT output can operate as a TTL level

UART output to indicate other drive conditions such as missing motor connectivity to phase A or B, standby or run state, motor direction, short-circut, over-temperature and other information about the state of the drive.

The UART is 9600 Baud, 8-bit data, single stop bit, no parity, Tx only. The UART sends a single sta-tus byte that updates continuously.

PIN 8 FULL-STEP: This pin is optional. The controller ground must be connected to pin 1 if this out-put is used. The FULL-STEP totem-pole output is a logic ‘0’ when the motor is at a full-step location, otherwise the output is a logic ‘1’.

Onboard Switches, Trimpots and LED IndicatorsSELF TEST BUTTON: The motor will continuously turn 1 revolution CW and CCW at 1 revolution per second using 256 microstep resolution while the SELF TEST switch is depressed. The STEP, DIRECTION, ENABLE, RESET inputs and the microstep resolution DIP switch settings are ignored and the while the SELF-TEST switch is pushed. The motor will return to its original position when the SELF TEST switch is released.

STANDBY CURRENT SET: This trimpot setting only applies when no external current set resistors are used. The trimpot setting is a percentage of the DIP switch RUN CURRENT settings. A fully CCW trimpot makes the standby current 0%, half-scale is 50% and a fully CW setting makes the standby current 100% of the RUN current DIP switch settings. This is fully covered in the ‘MOTOR/POWER CONNECTOR, Pin 2’ section of this manual.

LOW-SPEED RESONANCE COMPENSATION: Most step motors will vibrate at some speed be-tween 1 to 3 revolutions per second.


CONFIGURATION DIP SWITCHES: These 10 switches are used to set the drive’s microstep resolu-tion (SW1 to SW4) and set the RUN current for the motor (SW5 to SW10). Please see the Quick Start guide for the MICROSTEP RESOLUTION and MOTOR CURRENT SETTINGS tables.

INDICATOR LED 7, 8: Indicator 7 is a green LED and indicator 8 is a red LED. These two indicators work together to generate a ‘blink code’ to display up to 10 different drive conditions and faults. The LEDs blink 3 times, pause and repeat (green blink = GRN, red blink = RED). The assigned blink codes are:

LED IndicatorsCONTINUOUS GREEN: The motor is runningGRN - GRN - GRN - PAUSE: The motor is stoppedGRN - GRN - RED - PAUSE: Winding A is not connectedGRN - RED - GRN - PAUSE: Winding B is not connectedGRN - RED - RED - PAUSE: No motor connected to driveRED - RED - RED - PAUSE: Over-temperature shutdownCONTINUOUS RED: Short-circuit shutdown

INDICATOR LED 9: The drive has an internal ultra fast blow fuse. Conditions that will blow the fuse are power supply over-voltage, reversed power supply polarity, spilled liquids, conductive foreign object contamination and some short-circuit conditions. The indicator LED will light when power is applied if the fuse is blown. Replace the fuse only with 0251007.MXL. Using any other type of fuse or jumpering the fuse with wire will void the drive’s warrantee.

DC SPECIFICATIONS: Min Typ MaxPower Supply Voltage +18 VDC - - +80 VDCOutput Phase Current 0 Amps - - 7 AmpsQuiescent Current - 20 mADissipation (no motor) 0.36 W at 18V - 1.6 W at 80VDissipation (with motor) 1.8 W at 1A 4.5 W at 3.5A 14 W at

7ACurrent per I/O Input 2.5 mA at 3.3V - 5 mA at 5VCurrent per I/O Output - +/-24 mA - -Control I/O Supply Voltage

+3VDC - - +5.5VDC

Control I/O Supply Current

1 mA - - 15 mA

Control I/O Opto Isola-tion

+/-500 V - - -


TIMING SPECIFICATIONS: Min Typ MaxStep Pulse Frequency 0 Hz - 2.5 MHzStep Pulse '0' Time 200ns - -Step Pulse '1' Time 200ns - -Step Pulse Active Edge '0' to '1' - -Direction Setup Time 0 ns - -Direction Hold Time 500 ns - -Reset/Run Delay Time - - 10 usEnable/Disable Delay Time - - 10 usFault Delay Time - - 100 usFull-Step Delay Time - - 100 us

Motor Speed 0 RPM - 6,000 RPM

THERMAL SPECIFICATIONS: Min Typ Max

Storage Temperature -40 C - +125 COperating Temperature 0 C - +70 CThermal Shutdown - 85 C -

Vertex Linears specialises in high-tech markets such as semiconductor fabrication equipment, medical equipment, aerospace, and robotics, we provide a multitude of components, both mechanical and electrical, to address all your motion control needs. Call us at 949.586.8466.

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Visit Vertex Linears online store to purchase actuators, linear stages, motors, drives, and linear components. www.vertexlinear.com

VERTEX LINEAR21 Argonaut Aliso Viejo, CA 92656

VLMS483.V01.0

Specialists in custom precision motion control

MS483 MICROSTEPPING DRIVE - Motion Solutions€¦ · Vertex Linears MS483 Microstepping drive is a...

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