Nema 23 Stepper Motor Bipolar, 1.8 Degree, 2A, 2 Phase 4 Wires

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Stock: In Stock
Model: RDDLZ-STEP-2622302
Weight: 1.00
SKU: RDDLZ-STEP-2622302

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Nema 23 Stepper motor, 0.9Nm in 51mm, 1.8 degree, 2 phase 4 wires, manufacturer direct sale.

Specification

Electrical Specification	Model	RDDLZ57HS51-2004
	Matched Driver Model	RDDLZDSP57(Click it to see more info)
	Step Angle	1.8°
	Holding Torque	0.9Nm
	Rated Current/phase	2A
	Phase Resistance	1.2Ω
	Inductance	3mH
	Rotor Inertia	275g-cm2
Physical Specification	Frame Size	57 x 57mm
	Length	51mm
	Shaft Diameter	Φ8mm
	Shaft Length	19mm
	Motor Leads	4
	Weight	0.65kg
Technical Parameters	Step Angle Accuracy	±5% (full step, no load)
	Resistance Accuracy	±10%
	Inductance Accuracy	±20%
	Temperature Rise	80℃ Max. (rated current, 2 phase on)
	Ambient Temperature	-20℃~+50℃
	Insulation Resistance	100MΩ Min. 500VDC
	Dielectric Strength	500V AC for one minute
	Shaft Radial Play	0.02Max. 450g
	Shaft Axial Play	0.08Max. 450g
Quality Assurance	Warranty Period	12 months
Quality Assurance	Certificate	CE, ROHs, ISO/SGS9001

Dimensions: (Unit=mm)

L Max=51mm, Shaft Length=L1-1.6mm, L1(Common)=20.6mm

Wiring Diagram

Tips: Methods for improving the stepping system precision

Transmission interval compensation
Enhance the manufacturing and assembling precision of gear and screw of transmission elements of machine tool and take measures for eliminating the transmission clearance, but the transmission clearance cannot be completely eliminated.
When the motion or rotational direction of mechanical transmission chain is changed, numerous command pulses only could play the role of eliminating clearance at the very beginning. At as a result, the idle walk of the stepper motor is caused. However, the workbench cannot be moved actually. Thus, the transmission error is caused.
Compensation method: firstly measure and save clearance; when receiving reverse displacement command, firstly not output reverse pulse to the stepper motor but transfer the gap value into pulse number N to drive the stepper motor to rotate to span over the transmission clearance, and the act according to the command pulse.
Thread pitch error compensation
The manufacturing error in screw pitch of ball screw in transmission chain has direct influence on displacement precision of platen.
Compensation method: set numerous compensation points, measure and record displacement error of the platen at each compensation point to determine the compensation value and transmit it to the digital device as control parameter.
When the device runs, every time when the platen passes by each compensation point, the compensation quantity will added to CNC system to compensate screw pitch error.
Subdivision circuit
Subdivision drive: subdivide one stepping angle of stepper motor into numerous drive methods.

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