ADM57S RS485 Serial Stepper Motor Controller

Product Introduction

RS485 Serial Stepper Motor Controller, designed for NEMA23 stepper motors. It features standard RS485 communication protocol with built-in motion control instructions, and supports multi-axes control up to 32 axes simultaneously.

Product Advantages

• RS485 Communication: Standard RS485 communication protocol with built-in motion control instructions.
• Multi-Axis Control: Extending up to 32 axes for simultaneous control.
• Wide Voltage Input: DC 15~50VDC input range, recommended 36VDC.
• High Output: Continuous output current 4.0A max, peak current 5.6A.
• Flexible Integration: Mountable with NEMA23 and NEMA34 stepper motors.
• Smooth Operation: Low vibration, low noise, stable operation, low motor heating.
• Advanced Features: Any micro-step settable, overvoltage/undervoltage/overcurrent protection, built-in automatic motor parameter matching.
• Serial Debugging: RS232/RS485 debugging function.

Port Definition

• 1. VDC: Positive power input: DC voltage 15-50VDC
• 2. GND: Negative power input: DC voltage GND
• 3. COM: IO signal level common anode common terminal, amplitude 5VDC
• 4. LIM1-: Reverse limit signal port, valid for rising edge
• 5. LIM2-: Reverse limit signal port, valid for rising edge
• 6. STA: Start and stop signal port, valid on rising edge
• 7. RSA: RS485 group A signal
• 8. RSB: RS485 group B signal

Working Principle

DIP Switch Configuration

ADM57 stepper motor driver, using 6 DIP switches for setting the communication baud rate and device ID.

Device ID Setting (SW1 ~ SW4)

The formula for calculating the ID: ID = 1×SW1 2×SW2 4×SW3 8×SW4. The default ID value is 0, broadcast mode accepts data but does not return data.

Communication Baud Rate Setting (SW5 ~ SW6)

Integrated Stepper Motor

ADM57S Series RS485 Serial Stepper Motor Controller, NEMA23 Integrated Stepper Motor:

CRC Check Routine (C#)

Uint16 Funct_CRC16(unsigned char * puchMsg, Uint16 DataLen)
{
    Uint16 i, j, tmp;
    Uint16 crcdata = 0xFFFF;
    for(i = 0; i < DataLen; i )
    {
        crcdata = (*puchMsg) ^ crcdata;
        puchMsg ;
        for(j = 0; j < 8; j )
        {
            tmp = crcdata & 0x0001;
            crcdata = crcdata >> 1;
            if(tmp)
            {
                crcdata = crcdata ^ 0xA001;
            }
        }
    }
    return crcdata;
}

Downloads & Support

• User Manual: ADM57S RS485 Serial Stepper Motor Controller Manual
• Modbus Poll Software:
• AdamPower Software: RS485 Controller Software

More Information on detail, please feel free to contact me

• Availability: In Stock
• Model: ADM57S
• Brand: Adampower