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Digital Microstep Driver DM556N

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1 Product Instructions

1.1 Instructions

The DM556N is a fully digital stepper driver developed with advanced DSP control algorithm based

on the latest motion control technology. It is especially effective in devices where users expect low

cost, low noise. Its motor auto-identification and parameter auto-configuration feature offers quick

setup to optimal modes with different motors.

1.2 Features

The driver of DM556N features as bellow:

Wide control signal voltage range, from +5V to 24V. Can be used directly without any
external circuit

Low noise, low motor speed

Average current control, two-phase sinusoidal current output

The servo microstep DSP algorithm, low noise, low vibration

The max. power supply voltage can be 40VAC/50VDC

Output peak current from 1.4A to 5.6A

The standstill current can be set to half

Can drive 4, 6 and 8 wire two-phase, four-phase stepper motors

High-speed optocoupler isolation signal input, pulse response frequency up to 200 kHz

Strong anti-high frequency interference ability

Easy to set output current

Microstep accuracy: 2, 4, 8, 16, 32, 64, 128, 5, 10, 20, 25, 40, 50, 100, 125

Overvoltage, undervoltage, overcurrent, and phase-to-phase short circuit protection

The max motor speed:500RPM(Recommend value: 200RPM).If you need higher motor
speed,recommend DM556T.

1.3 Safety Instructions

The product is powered by AC/DC power supply, please confirm that the power supply
voltage is within the allowable range.

Do not plug or unplug the cable when power on.

This product is not sealed, do not mix conductive foreign matter or flammable materials
inside. Pay attention to moisture-proof.

Keep the operating environment cool and ventilated when in use.

Connect to the stepper motor, adjust the current, work continuously for half an hour and
observe if the temperature is in the rated range. If the motor temperature is too high, please
contact the us.

Summary of Contents for DM556N

Page 1: ...igned by STEPPERONLINE Manufactured by NC THCH 2018 All Rights Reserved 7 Zhongke Road Jiangning Nanjing China Tel 086 25 8715 6578 Web site www omc stepperonline com E Mail sales stepperonline com At...

Page 2: ...tion 4 3 1 Control Signal Wirings Description 4 3 2 Motor Wirings Description 5 3 3 Input Signals Description 5 3 4 Timing Diagram of Control Signals 6 3 5 Wiring Requirements 7 4 DIP Switch Setting 7...

Page 3: ...f Can drive 4 6 and 8 wire two phase four phase stepper motors High speed optocoupler isolation signal input pulse response frequency up to 200 kHz Strong anti high frequency interference ability Easy...

Page 4: ...cal Maximum Unit Output Current 1 4 5 6 Peak Amps Input Voltage 20 36 50 contain the ripple VDC 15 24 40 contain the ripple VAC Control Signal Voltage 5 26 contain the ripple VDC Control Signal Curren...

Page 5: ...eater than 2 5 s PUL voltage range is 5V 24V PUL PUL DIR 5 24V This signal can modify the motor direction In order to ensure the reliability of the motor the DIR signal should be established at least...

Page 6: ...he running direction of the motor once B 3 3 Input Signals Description DM556N has high speed optocoupler inside that allows reception of long line controller signal open collector signal and PNP type...

Page 7: ...eviations PUL DIR and ENA signals should observe some rules as following figure show Figure 4 Timing diagram of control signals Remark 1 t1 ENA signal must be ahead of DIR signal by at least 5 s Usual...

Page 8: ...the energized motor stops there is still a large current flowing through the coil Pulling out the motor line terminal will cause a huge instantaneous induced electromotive force to burn the driver 5...

Page 9: ...ep Pulses rev SW5 SW6 SW7 SW8 2 400 OFF ON ON ON 4 800 ON OFF ON ON 8 1600 OFF OFF ON ON 16 3200 ON ON OFF ON 32 6400 OFF ON OFF ON 64 12800 ON OFF OFF ON 128 25600 OFF OFF OFF ON 5 1000 ON ON ON OFF...

Page 10: ...inductance motor has a high speed performance but the current is large The DM556N can drive Nema 23 Nema 24 two phase and four phase hybrid stepper motors 6 1 Motor matching 1 Define the load torque...

Page 11: ...2 Output current setting For the same motor the larger the current setting value the larger the motor output torque but the heat generated by the motor and the driver is more serious when the current...

Page 12: ...ies resistor A It is not required This driver has been compatible with all signal voltages between 5V and 24V 3 Q After the driver is working for a long time the outer casing is hot is it normal A Thi...

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