RBK Series Stepping Motor and Microstepping Driver Package

The RBK Series combines a stepping motor with a DC input microstep driver. The RBK Series is available with either a standard, high-torque terminal box or planetary (PL) geared stepping motor. Models equipped with an encoder are also available. The RBK Series includes Oriental Motor's proprietary Smooth Drive Function to easily achieve low-vibration operation.

Smooth Drive Function

The Smooth Drive Function automatically controls the motor's microstep drive operation at the same travel and speed as in the full-step mode, without the operator having to change the speed settings of the driver's pulse input. It enables low-vibration operation with the microstepping drive to be achieved with the flick of a switch.

Microstep Function

The microstepping driver electronically divides the basic step angle of the motor (1.8°/step) by up to 128 steps without the use of a reduction mechanism or other mechanical element. 16 different resolutions levels are available. The available range of resolution settings is 200 (1.8°/step) to 25600 (0.0140625°/step). The step angle can be easily set using the built-in switches on the driver. This function enables low-vibration and low-noise operation.

Third Harmonic Waveform Correction Function

This function corrects motor drive current waveforms. It provides improved angle accuracy and reduced vibration.

Vibration Suppression Function

This function improves vibrations in the medium speed range of stepping motors. It enables reduced risk of missteps due to vibrations.

Wide Voltage Range Driver

The RBK Series utilizes a constant current driver with a wide voltage range of 20 to 75 VDC (20 to 40 VDC
for High-Torque and PL Geared models). This enables it to support a wide range of power sources and raising the power supply voltage enables increased torque during high speed operation.

NOTE: Raising the power supply voltage enables increased torque during high speed operation.

High-Torque Type Motors

The high-torque type adopts new technology and design. The motor produces approximately 30 ~ 50% higher torque than a conventional stepping motor of the same size.

Planetary Geared Type (PL Gear)

• Planetary Geared
• High Permissible Torque
• In-line Output Shaft
• Low Backlash [35 arc minutes (0.58°)]
• Gear ratios: 5:1, 10:1, 36:1

 

Terminal Box Type

• Conforms to IP65 standard
• Protects against ingress from dust or water
• Can be wired directly from motor terminal block

Encoder Models Available

• Encoder option is available for more reliability. (Except for 1.10 in. frame size and SH Geared type)
• Save time ordering parts, assembling and inspecting
• 4 encoder types: 200 or 400 pulses/rev (P/R), 2 or 3 channels

 

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