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RMB3DB Stepper Motor Micro Stepping Driver Data Sheet

Main Features

 

  • High performance, low cost
  • Supply voltage up to +32VDC, peak current up to 2.5A
  • 3-state current control technology
  • Automatic idle-current reduction
  • Suitable for 2-phase and 4-phase stepping motors
  • Optically isolated input signals
  • Pulse frequency up to 100 KHz
  • 4 Selectable resolutions
  • DIP switch current setting and micro-stepping settings. See tables below
  • PUL/DIR mode and CW/CCW mode.
  • Small size (86x55x20.5mm)
  • No User Serviceable Parts Inside

Introduction

RMB3DB is a high performance micro-stepping driver based on one of the most advanced technologies in the world today. It is suitable for driving any 2-phase and 4-phase hybrid stepping motors. By using advanced bipolar constant-current chopping technique, it can output more speed and power from the same motor, compared with traditional technologies such as L/R drivers. Its 3-state current control technology allows coil currents to be well controlled, with relatively small current ripple and therefore less motor heating.

Applications

Suitable for a wide range of stepping motors of Nema 17 and 23, and usable for various kinds of machines, such as X-Y tables, cnc router machines, table top and bench milling machine cnc conversion, lathe cnc conversion, labeling machines, laser cutters, engraving machines, robots and pick-place devices. Extremely suitable for applications which will demand high speed, reliability and high precision

Electrical Specifications

Parameters

RMB3DB

Min.

Typical

Max.

Unit

Output current

0.39

-

2.5

Amps

Supply voltage (DC)

12

24

32

VDC

Logic signal current

7

10

16

mA

Pulse input frequency

0

-

100

Khz

Isolation resistance

500

-

-

MΩ

 

Mechanical Properties

  Pin Assignment and Description

  Control Signal Connector P1 pins

Pin Function

Details

PUL

Pulse signal: in single pulse (PUL/DIR) mode, this input represents pulse signal, effective for each upward-rising edge; in double pulse mode (CW/CCW) this input represents clockwise (CW) pulse. For reliable response, pulse width should be longer than 3μs.

DIR

DIR signal: in PUL/DIR mode, this signal has low/high voltage levels, representing two directions of motor rotation; in CW/CCW mode (set by inside jumper J2), this signal is counter-clock (CCW) pulse, effective on each rising edge. For reliable response, direction signal should be sent to driver 5μs before the first pulse of a motion direction reversal.

OPTO

Photo-coupler driving power supply.

ENA

Enable signal: this signal is used for enabling/disabling the driver. High level for enabling the driver and low level for disabling the driver. Usually left unconnected (enabled).

Power connector P2 pins

Pin Function

Details

Ground

DC power ground

+V

DC power supply, +20VDC － +32VDC, Including voltage fluctuation and EMF voltage.

Phase A

Motor coil A (leads A+ and A-)

Phase B

Motor coil B (leads B+ and B-)

  Micro-step Resolution Selection

Micro-step resolution is specified by 5, 6, DIP switches as shown in the following table:

Micro-step

steps/rev.( 1.8°/rev)

SW5

SW6

1

200

ON

ON

2

400

OFF

ON

4

800

ON

OFF

8

1600

OFF

OFF

Current Setting

Peak Current (A)

SW1

SW2

SW3

0.39

OFF

ON

ON

0.71

ON

OFF

ON

1.10

OFF

OFF

ON

1.42

ON

ON

OFF

1.81

OFF

ON

OFF

2.13

ON

OFF

OFF

2.52

OFF

OFF

OFF

Typical Connections

fdg

Please note that the RMB3DB driver requires a +5Vdc supply and ground to the opto-isolator circuit. We supply a Voltage regulator that will fit into your Power supply to provide this voltage

 

RMB4DB Stepper Motor Driver Data Sheet

2-Phase Mircostepping Motor Driver

Characteristics:
1.DC power input type:24V~50VDC
2.Output current:1.3A-4.5A
3.Mircostepping:1(1.8º) 1/2 1/4 1/8 1/16 1/32 1/64 1/128 1/256
1/5 1/10 1/25 1/50 1/125 1/250
4.Protect form :Overheated protect, lock automatic half current ,error connect protect
5.Dimensions:118mm×76mm×33mm
6.Weight:<300g.
7.Working environment:Temperature-15～40℃ Humidity<90.

I/O Ports:
1.VCC+:DC power positive pole
Note:Must guard against exceeding 50V, so as not to damage the module
2.GND:DC power cathode
3.A+ A-:Stepping motor one winding
4.B+ B-:Stepping motor other winding
5.PUL+ PUL -:Stepping pulse input+5V (Rising edge effective, rising edge duration >10μS)
6.DIR + DIR-:Stepping motor direction input, voltage level touched off, high towards, low reverse
7.ENA+ ENA-: motor free

NOTE:
1.When ambient temperature is high or working current over 2.7A, fix the module on big metal shell , or use axle flows fan dispels the heat, to make the module run reliably for a long time.
2.Half current automatically: if control machine not send out signal in half second, driver enter half current state of automatically for electricity saving, the phase current of the winding of the electric
3.The fault phase is protected: When the double-phase electrical machinery is connected with driver, users are apt to connect the phase by mistake, thus would damage the driver seriously. The protecting circuit is within this driver, when users connect by mistake, the driver will not be damaged, but the electrical machinery runs abnormally, shake , and output is small.Please check whether the wiring of electrical machinery is a mistake.

Switch Choice: (“ON=0,OFF=1”)

1.Microstepping choice:

SW5

0

0

0

0

0

0

0

0

1

1

1

1

1

1

SW6

0

1

0

1

0

1

0

1

0

1

0

1

0

1

SW7

0

0

1

1

0

0

1

1

0

0

1

1

0

0

SW8

0

0

0

0

1

1

1

1

0

0

0

0

1

1

Micro

1/2

1/4

1/8

1/16

1/32

1/64

1/128

1/256

1/5

1/10

1/25

1/50

1/125

1/250


2.Current choice:

SW1

0

1

0

1

0

1

0

1

SW2

0

0

1

1

0

0

1

1

SW3

0

0

0

0

1

1

1

1

Current（A）

1.3

1.8

2.3

2.7

3.2

3.7

4.2

4.5

 

3.Full current or half current choice:
SW4:0＝Full current,1＝half current

4.Pulse choice:
In the driver has a jumpers. Default Set as Single Pulse

http://www.smartautomation.com.cn/sys/UploadFiles/20101024192955652.jpg

 

5.installation dimension

RMB5DB Stepper Motor Driver Data Sheet

Characteristics:
1.DC power input type:24V~80V
2.Output current:2～6A
3.Mircostepping:1(1.8º),1/2,1/4,1/8,1/16,1/32,1/64,1/128,1/256,1/5,1/10,1/25,1/50,1/125,1/250
4. Protect form : Overheated protect, lock automatic half current ,error connect protect
5. The maximum pulse rate is 200HZ.
6. Dimensions:147mm*97mm*30mm
7. Weight:<500g.
8. Working environment:Temperature-15～40℃ Humidity<90%.

I/O Ports:
1.VCC+:DC power positive pole
Note: Must guard against exceeding 70V, so as not to damage the module. 80Vdc allows for back EMF from motors total voltage inc back EMF 80Vdc
2.GND: DC power cathode
3.A+,A-:Stepping motor one winding
4.B+,B-:Stepping motor other winding
5.CP +,CP -:Stepping pulse input+5V (Rising edge effective ,rising edge duration >10μS)
6.CW +,CW-:Stepping motor direction input, voltage level touched off,high towards, low reverse
7.REST+,REST-: motor free

The interface see
the right picture http://www.smartautomation.com.cn/sys/UploadFiles/2010102420748742.jpg

 

 

 

 

 

 

 

 

 

NOTE:
1. When ambient temperature is high or working current over 3A, fix the driver on a heat sink to help dissipate heat or use a fan in your enclosure to dispel the heat.
2. Half current automatically: if control machine not send out signal in half second, driver enter half current state of automatically for electricity saving, the phase current of the winding of the electric
3. The fault phase is protected When the double-phase electrical machinery is connected with driver , users are apt to connect the phase by mistake, thus would damage the driver seriously. The protecting circuit is within this driver, when users connect by mistake, the driver will not be damaged, but the electrical machinery runs abnormally, shake and output is small. Please check whether the wiring of electrical machinery is a mistake

 Switch Choice: (“ON=0,OFF=1”)

1.Microstepping choice:

SW5

0

0

0

0

0

0

0

0

1

1

1

1

1

1

SW6

0

1

0

1

0

1

0

1

0

1

0

1

0

1

SW7

0

0

1

1

0

0

1

1

0

0

1

1

0

0

SW8

0

0

0

0

1

1

1

1

0

0

0

0

1

1

Micro

1/2

1/4

1/8

1/16

1/32

1/64

1/128

1/256

1/5

1/10

1/25

1/50

1/125

1/250


2.Current choice:

SW1

0

1

0

1

0

1

0

1

SW2

0

0

1

1

0

0

1

1

SW3

0

0

0

0

1

1

1

1

Current（A）

2.00

2.57

3.14

3.71

4.28

4.86

5.43

6.00


3.Full current or half current choice:
SW4:0＝Full current；1＝half current

4.Pulse choice:
Usually default setting is single pulse .


5.installation dimension

sales@rhonmac-cnc.co.uk

Our policy is one of continual improvement therefore specifications may change without notice. Pictorial representations are intended as a guide only and may vary depending on machine model or product offered.