OEM750步進電機驅動器

 

生產廠家：compumotor公司 
產品名稱：OEM750步進電機驅動器 
產品別名：兩相微步進驅動器
產品規格：單包裝/多包裝
產品型號：OEM750
產    地：美國

突出特點：緊湊外型，低成本，專為OEM廠商設計
產品簡介：

●兩相混合式
●雙極恆流斬波
●脈衝/方向控制(光電隔離)
●過壓,欠壓,過流,過熱保護
●16級細分(最高254細分)
●電感匹配範圍寬:0.2-80mH
●自動減振,電阻尼
●可選擇內含控制的驅動器
●輸入電壓24－75VDC
●輸出電流0.15－7.5A

Compact, Low-Cost

Drives

With technology enhancements and field experience, Compumotor offers the OEM750 Series, a compact microstepping drive that provides big performance in a small package.

 

Electronic Damping

All step motors are subject to mid-range instability, also referred to as parametric oscillations. Several problems are associated with these oscillations. They can cause the motor to stall, and thus cause the user to include a margin (typically at least 50%) of extra torque to overcome the oscillation. The OEM750 Series incorporates a subset of the patented electronic damping circuitry developed by Compumotor. This feature suppresses these oscillations, allowing the torque formerly reserved for safety margin to be used to do useful work, thus taking advantage of the full capabilities of the step motor.

 Minimizes stall condition

 Increases usable torque

 Higher accelerations

 

Current Loop Adjustment

Since the OEM750 Series is capable of operating from 24 to 75 VDC, while operating motors with a wide range of winding inductances, Compumotor incorporated current loop gain techniques to optimize motor performance. The loop gain adjustment is designed to maximize your system’s (drive, motor,and voltage) performance. Control over the current loop gain allows customers to take advantage of the motor’s capable torque and reduces audible noise and excessive heating of the motor. This gives users more choices when selecting a motor and the opportunity to pick the best motor for their application.

 Optimizes motor performance

 Reduces audible noise

 Reduces motor heating

 

Packaging

The OEM750 Series combines ASIC and surface mount technologies to minimize the product’s footprint, minimize overall package size, and increase product reliability.

 

Reliability

At Compumotor, producing reliable, quality products is our number one priority. Our OEM750 Series is designed with highquality standards and manufactured with state-of-the-art equipment and production methods. Before any product reaches our customers, it must pass a rigorous set of hardware and software tests. Today, Compumotor uses Highly Accelerated Life Testing (HALT) to uncover the product’s vulnerabilities,in order to produce a robust and reliable product. JIT (Just-In-Time) manufacturing and DFM (Design-For-Manufacturability) methods lend themselves well in creating the necessary flexibility to readily accommodate your special needs.

 

Compact, Low-Cost

Drives

Compumotor’s OEM750 microstepping drive is designed with performance, power, packaging, and reliability in mind —everything that is necessary to meet your high-volume microstepping application needs.

 

Features

Performance

 Designed for use with motor inductance range of

0.2 mH–80 mH

 Three-state current control allows the drive and motor to run cooler and more efficiently than two-state drives

 Selectable resolution up to 50,800 steps/rev

 Auto standby reduces motor current (and heating) at rest

 Provides 0.2 Amps to 7.5 Amps (peak)

 Single 24-75 VDC power supply input

 Compatible with a variety of motors

 Six predefined current waveforms to optimize

smoothness

 

Protection

 Optically isolated step and direction inputs

 Short circuit protected—phase-to-phase, and phase-toground

 Power dump circuitry to protect drive from regeneration caused by large inertial loads

 Self-test feature to verify proper system operation

 Overtemperature circuitry protects the drive from thermal damage

 

Physical

 Status/fault LED indicators to confirm proper operation

 ASIC and surface-mount technologies minimize product footprint, overall package size, and increase product reliability

 Removable snap-on molded cover for convenient configuration and protection against contaminants

 Optically isolated fault output for embedded applications

 Heat plate design allows thermal dissipation through a suitable heat dissipating mounting surface

 Simplified, two-screw mounting

 Right-angle screw terminal allows side-to-side mounting or Eurorack compatibility

 Built-in controller version for complete application solutions—OEM750X

 Overall dimensions 5.0 x 3.6 x 1.6 in. (127 x 91 x 41 mm)

 Convenient configuration DIP switches

 Certified as UL-recognized component

 CE (LVD & EMC)*

 

OEM750 Specifications

Parameter Value

Power Input

DC 24–75 VDC @ 2.0 Arms (motor dependent)

Performance

Accuracy ±5 arc min (0.0833°) typical.

Unloaded-bidirectional with Compumotor supplied motors. Other motors may exhibit different absolute accuracy.

±1 arc min (0.0167°) typical/per each frictional load equal to 1% rated torque.

Loaded-in addition to unloaded accuracy.

Repeatability ±5 arc sec (0.0014°) typical.

Unloaded-one revolution returning to start point from same direction.

Hysteresis Less than 2 arc min (0.0334°) unloaded-bidirectional.

Resolution 16 selectable choices: 200, 400, 1000, 2000, 5000, 10000, 12800, 18000, 20000, 21600,

25000, 25400, 25600, 36000, 50000, 50800

Waveform Selectable. Allows waveform shaping for optimum smoothness or relative accuracy. Pure sine;

-4%, -6%, -8%, -10% 3rd harmonic.

Amplifier

Type 20 kHz fixed frequency, variable duty cycle pulse width modulated (PWM )

Current Controlled, bipolar chopper

Number of Phases 2

Output Current 0.2–7.5 amps current per phase peak (selectable)

Drive Supply Voltage 24–75 VDC (dependent on external power supply)

Standby Current Reduction 25%, 50%, or 75% of selected motor current

Nominal Chopping Frequency 20 kHz

Max Stepping Rate 2 MHz max pulse rate; 50 rps max speed

Step Input High-going pulse, 200 nsec min width; max pulse rate is 2 MHz; User-supplied driver for the step

and direction inputs should be capable of providing a minimum of 6.5 mA to maximum of 15 mA

Direction Input Logic High = positive (CW) rotation—3.5–5.0V

Logic Low = negative (CCW) rotation—0–0.4V

User-supplied driver for the step and direction inputs should be capable of providing a minimum

of 6.5 mA to a maximum of 15 mA. The direction input must be stable for at least 200 μsec before

the drive receives the first pulse

Fault Output Open-Collector/Emitter, Vce = 70 VDC, Vce sat = 0.3 VDC, Ic = 10 mA (max)

Maximum dissipation = 55 mW

Conducting = normal operation

Non conduction = drive fault

Protective

Circuts Short Circuit* Phase-to-phase, phase-to-ground

Undervoltage If DC supply drops below 24 VDC

Overtemperature* The drive will fault if heat plate exceeds 55°C

Environmental

Drive Temp Max allowable ambient temperature is 122°F (50°C). Fan cooling may be required if airflow is

restricted. Max allowable heatplate temperature is 55°C.

Humidity 0 to 95%, Non-condensing

Physical Drive Dimensions 5.0 x 3.6 x 1.6 in (127 x 91 x 41 mm)

Weight 12 oz

Motor Type Two-phase hybrid permanent magnet, 1.8°

Number of Leads 4, 6, or 8

Inductance Range 0.2 mH–80 mH

* Drive shuts down in conditions listed. Power must be cycled or drive reset to resume operations.

01084450370-1106 Mrs Zhao

 

 趙瑩 
銷售工程師     
北京潤誠時代科技有限公司
地址：北京市朝陽區北苑路68號星河寫字樓四層412室
郵編：100012
電話：（010）84450370 Ext 1106
傳真：（010）84450371 Ext 1102 
手機：18701349708
郵箱：zyy@runcheng.net emdzyy@yeah.net runchengzyy@163.com
網址：www.runcheng.net
        www.fastarmotion.com