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2-Phase Open Loop Stepper Driver - R42

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Specifications of 2-Phase Open Loop Stepper Driver – R42

The R42 2-Phase Open Loop Stepper Driver is based on 32-bit DSP platform, with built-in micro-stepping technology & auto tuning of parameters. The drive features low noise, low vibration and low heating. It is used to drive two-phase stepper motors base below 42mm.

  • Pulse mode: PUL&DIR
  • Signal level: 3.3~24V compatible; series resistance not required for the application of PLC.
  • Power voltage: 18-48V DC supply; 24 or 36V recommended
  • Typical applications: marking machine, soldering machine, laser, 3D printing, visual localization, automatic assembly equipment, etc.
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Working Current Setting

Peak Current Average Current SW1 SW2 SW3 Remarks
0.3A 0.2A on on on Other current can be customized.
0.5A 0.3A off on on
0.7A 0.5A on off on
1.0A 0.7A off off on
1.3A 1.0A on on off
1.6A 1.2A off on off
1.9A 1.4A on off off
2.2A 1.6A off off off

Micro-stepping Setting

Steps/revolution SW5 SW6 SW7 SW8 Remarks
200 on on on on Other subdivisions can be customized.
400 off on on on
800 on off on on
1600 off off on on
3200 on on off on
6400 off on off on
12800 on off off on
25600 off off off on
1000 on on on off
2000 off on on off
4000 on off on off
5000 off off on off
8000 on on off off
10000 off on off off
20000 on off off off
25000 off off off off
When SW5, SW6, SW7, SW8 are all on, any subdivision can be changed through the debugging software.
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