Cw542 Stepper Motor Driver, 2-Phase Stepper Motor Drive, 20VDC to 50VDC, 1.2A to 5.0A

• Application: Nc Machine Tool
• Speed: Constant Speed
• Number of Stator: Two-Phase
• Excitation Mode: HB-Hybrid
• Function: Control
• Type: Magnetic-Electric
• Model NO.: CW542
• Certification: ISO9001, RoHS&CE
• Brand: Smart Automation
• Voltage: 20VDC to 50VDC
• Current: 1.2A to 5.0A
• Transport Package: Standard Export Package
• Specification: CW542
• Trademark: Smart Automation
• Origin: China
• HS Code: 8503009090
• Production Capacity: 10000 PCS Per Month

Product Description

Digital Stepper Drive CW542

1.Introduction

Descriptions
The CW542 is a new generation digital 2-phase stepper motor driver, based on a 32-bit DSP processor, combination of the anti-resonance, low noise, micro-step and low temperature rise technology significantly improve the performance of the stepper motor, has low noise, small vibration, low temperature rise and high-speed torque. The driver use online adaptive PID technology, without manual adjustment can be automatically generated optimal parameters for different motors, and achieve the best performance.
Supply voltage range from 20VDC to 50VDC, suitable for driving various 2-phase hybrid stepping motors which phase current below 5.0A. The micro-step can be set from full step to 51200steps/rev and the output current can be set from 1.2A to 5.0A; with automatic idle-current reduction, self-test, over-voltage, under-voltage and over-current protection.
Features
 

1. High-performance, low price
2. micro-step
3. Automatic idle-current reduction
4. Optical isolating signal I/O
5. Max response frequency up to 200Kpps
6. Low temperature rise, smooth motion
7. Online adaptive PID technology

Applications
Suitable for a variety of large-scale automation equipments and instruments. For example: labeling machine, cutting machine, packaging machine, plotter, engraving machine, CNC machine tools and so on. It always performs well when applied for equipment which requires for low-vibration, low-noise, high-precision and high-velocity.

Electrical Specifications

Parameter	Min	Typical	Max	Unit
Input Voltage(DC)	20	-	50	VDC
Output current	0	-	5.0	A
Pulse Signal Frequency	0	-	200	KHZ
Input Signal Current	7	10	16	mA

2.Current and micro-step Setting 
Current setting
 

Peak	RMS	SW1	SW2	SW3
Default		off	off	off
1.2A	0.85A	on	on	on
1.75A	1.25A	off	on	on
2.29A	1.63A	on	off	on
2.84A	2.03A	off	off	on
3.41A	2.44A	on	on	off
3.97A	2.83A	off	on	off
4.51A	3.23A	on	off	off
5.04A	3.60A	off	off	off

Standstill Current Setting
SW4 is used for standstill current setting. OFF means that the standstill current is half of the dynamic current; and ON means that standstill current is the same as the selected dynamic current. Usually the SW4 is set to OFF, in order to reduce the heat of the motor and driver.

Micro-step Setting 

Step/rev	SW5	SW6	SW7	SW8
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

3. Connectors and Pin Assignment

Control signal Connector

Control Signal connector
Name	Description
PUL+	Pulse signal positive
PUL-	Pulse signal negative
DIR+	Direction signal positive
DIR-	Direction signal negative
ENA+	Enable signal positive, usually left unconnected(enable)
ENA-	Enable signal negative, usually left unconnected(enable)

Power and Motor Connector

GND	Power Ground
+VDC	Power supply, +20~+50 VDC
A+	Motor phase A
A-
B+	Motor phase B
B-