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RBK Series Stepping Motor and Microstep Driver Package (DC Input)

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 Planetary 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

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.

PS/PL Geared Type

• Planetary Geared
• High Permissible Torque
• In-line Output Shaft
• Low Backlash [35 arc minutes (0.58°)]
• Gear ratios: 5:1, 10:1, 36:1*
  (*not available for 28mm)

Terminal Box Type

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

Encoder Option Available

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

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.

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 available with the microstepping drive to be achieved with the flick of a switch.

Vibration Suppression Function

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

RoHS Compliant

RoHS (Restriction of Hazardous Substances) Directive:
Directive on restriction of the use of certain hazardous substances in electrical and electronic equipment (2002/95/EC).
The RoHS Directive prohibits the use of six chemical substances in electrical and electronic products sold in the EU member states. The six controlled substances are: lead, hexavalent chromium, cadmium, mercury and two specific brominated flame-retardants (PBB and PBDE).

Product Lineup

Type	Features	Power Source	Motor Frame Size		Basic Step Angle	Max. Holding Torque
			w/o Encoder	w/ Encoder
High-Torque	A high-torque motor has approx. 1/3 ~ 1.5 times more torque when compared to a step angle 1.8° standard stepping motor.	20 ~ 40 VDC	1.10 in. (28 mm)	1.10 in. (28 mm)	1.8°	9.2 ~ 15.6 oz-in (0.065 ~ 0.11 N·m)
			1.38 in. (35 mm)	1.38 in. (35 mm)		28 ~ 52 oz-in (0.2 ~ 0.37 N·m)
			1.65 in. (42 mm)	1.65 in. (42 mm)		68 ~ 132 oz-in (0.48 ~ 0.93 N·m)
Standard	The basic model offers a good balance of torque and low vibration / noise characteristics.	20 ~ 75 VDC	2.22 in. (56.4 mm)	2.22 in. (56.4 mm)	1.8°	68 ~ 240 oz-in (0.48 ~ 1.75 N·m)
			3.35 in. (85 mm)	3.35 in. (85 mm)		310 ~ 930 oz-in (2.2 ~ 6.6 N·m)
Terminal Box	A terminal box motor conforms to the IP65 standard of ingress protection against dust and water.	20 ~ 75 VDC	2.22 in. (56.4 mm)	-	1.8°	68 ~ 240 oz-in (0.48 ~ 1.75 N·m)
			3.35 in. (85 mm)	-		310 ~ 930 oz-in (2.2 ~ 6.6 N·m)
PS/PL Geared	A geared stepping motor with planetary gear mechanism offering low backlash and high strength.	20 ~ 40 VDC	1.10 in. (28mm)	-	0.18°, 0.36°	42 ~ 71 oz-in (0.3 ~ 0.5 N·m)
			1.65 in. (42 mm)	1.65 in. (42 mm)	0.05° - 0.36°	8.8 ~ 26 lb-in (1 ~ 3 N·m)
			2.36 in. (60 mm)	2.36 in. (60 mm)		30 ~ 70 lb-in (3.5 ~ 8 N·m)