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DC057A 57mm Brushed DC Motor

DC057A 57mm Brushed DC Motor
The DC057A series brush commutated DC motor is a 57 mm diameter unit offered in 3 lengths with continuous output torques of 0.21 to 0.40 Nm.

Features:
  • Speeds up to 6,000 RPM possible
  • DC bus voltage up to 60 Vdc
  • With low Ke's to accommodate low bus voltage
  • Dynamically balanced armatures
  • 2 Pole Stator
  • Ball Bearings 




Videos: 
How DC Motor Curves are Created and How to Use Them

 
  • Specifications +



    Motor Data   Units  Part No.
    DC057A-1 DC057A-2 DC057A-3
    Max DC Terminal Voltage
    VT V 60
    Max Speed (Mechanical)
    ωMAX
    rpm 6000
    Continuous Stall Torque1
    TCS Nm 0.212
    0.35 0.402
    lb-in 1.88 3.13 3.56
    Peak Torque (Maximum)1
    Tpk Nm 1.69  2.47  2.825
    lb-in 15.00  21.88 25 
    Thermal Time Constant
    Tth min 15  17  20
    Thermal Resistance
    Rth °C/W
    2.98 2.39  2.26 
    Max. Winding Temperature
    ѲMAX °C 155 
    Rotor Inertia
    Jr kg-m2
    2.61E-05 4.26E-05   5.16E-05
    lb-in-sec2 2.38E-04  3.88E-44 4.69E-04 
    Motor Weight
    Wm kg 1.0  1.4  1.6
    lb 2.2  3.1  3.5

    1Recorded at maximum winding temperature at 25°C ambient and without heatsink.  **For PBL4850E to operate a brush motor, an encoder is required.

  • Dimensional Drawings +





  • Winding Performance Data +



    Motor Data   Units  Part No.
    DC057A-1 DC057A-2 DC057A-3
    Rated Voltage V1
    VR V 60 60 60 
    Rated Torque1 TR Nm 0.21 0.35 0.40
    lb-in  1.88  3.13 3.56 
    Rated Speed1 ωr rpm 6,000 4,700 4,000 
     Rated Current1 Ir 4.30  3.70  4.14 
    Rated Power1 Pr 78  174 128 
    Motor Constant  KM Nm/√W 0.05  0.07  0.08
    lb-in/√W 0.42  0.66  0.67
    Torque Constant KT   Nm/A 0.06  0.11 0.12
    lb-in/A  0.49  0.93  1.08 
    Voltage Constant  KE V/(rad/s) 0.06  0.11  0.12
    V/krpm  5.80  11.00  12.70 
    Terminal Resistance Rmt  Ω 1.34  2.00  2.58 
     Inductance L mH  1.90 5.20  4.70 
     Peak Current Ipk  A 34.88 26.10  25.90

    1Recorded at maximum winding temperature at 25°C ambient and without heatsink.

  • Performance Curves +


    Speed Torque Performance Curve

    DC057A-1


    DC057A-2


    DC057A-3

  • Encoders +


    Q Encoder
    The Q & V high performance incremental encoders are transmissive devices with integrated bearing and isolating spring mount. The encoders are identical except for the mounting spring is configured for different motors.

    Features:
    • Resolutions from 1000 to 5000
    • Differential line driver is standard
    • Frequency response to 500 kHz
    • Rugged mechanical design
    • Good for higher temperature
    • Shielded cable

    Specifications
    ENCODER DATA SYMBOL UNITS Q1, Q3, Q5, Q8
    Available Resolutions - - 1000, 2000, 2500, 5000
    Output - - 2-Channel Quadrature with index
    Output Interface - - TTL Compatible
    Supply Voltage Vcc VDC 4.75 to 5.25
    Supply Current Icc mA 125 max
    Max. Operating Frequency fmax kHz 500
    Operating Temperature θmax °C -20 to +100
    Connection Chart
    PIN COLOR Q
    1 Red Vcc
    2 Black Encoder Ground
    3 Brown Channel A
    4 White Channel A̅
    5 Blue Channel B
    6 Green Channel B̅
    7 Orange Index I
    8 Yellow Index I̅
    N/C Black / White Case Ground
    N/C Drain Wire Cable Shield

    H Encoder

    The H1 and H2 transmissive optical incremental encoder was developed for volume OEM precision motion control applications and has been an industry standard for decades. The H1 is available in a 500 count resolution with index while the H2 is a 2 channel 1000 count device.

    Features:
    • TTL Quadrature output
    • Frequency response to 100 kHz

    Specifications
    ENCODER DATA SYMBOL UNITS H2 H1
    Available Resolutions - - 1000 500
    Output - - 2-Channel Quadrature 2-Channel Quadrature with Index
    Output Interface - - TTL Compatible TTL Compatible
    Supply Voltage Vcc VDC 4.5 to 5.5 4.5 to 5.5
    Supply Current Icc mA 40 max 85 max
    High Level Output Voltage VOH V 2.4 min 2.4 min
    Low Level Output Voltage VOL V 0.4 max 0.4 max
    Max. Operating Frequency fmax kHz 100 100
    Operating Temperature θmax °C -40 to +100 -20 to +85
    Encoder Weight (Mass) WE oz 2 2
    g 57 57
    Connection Chart
    PIN COLOR H2 H1
    1 Black Encoder Ground Encoder Ground
    2 Green or NC No Connection Index I
    3 Yellow Channel A Channel A
    4 Red Vcc Vcc
    5 Blue Channel B Channel B

    E30C & E30D Encoder
    The E30C & E30D optical incremental encoder was developed for volume OEM precision motion control applications and is the recommended encoder for the DC030B. The E30 offers a wide range of outputs, resolutions and connection solutions in a compact 30 mm by 8 mm size.

    Features:
    • Resolutions from 200 to 2048
    • TTL Quadrature output
    • Frequency response to 220 kHz
    • Low power consumption, 5V @ 20mA max
    • Locking connector


    Specifications

    ENCODER DATA SYMBOL UNITS E30C E30D
    Available Resolutions - - 200, 250, 256, 400, 500 500, 512, 1000, 1024, 2000, 2048
    Output - - 2-Channel Quadrature 2-Channel Quadrature with Index
    Output Interface - - TTL Compatible TTL Compatible
    Supply Voltage Vcc VDC 4.5 to 5.5 4.5 to 5.5
    Supply Current Icc mA 20 max 20 max
    High Level Output Voltage VOH V 2.4 min 2.4 min
    Low Level Output Voltage VOL V 0.4 max 0.4 max
    Max. Operating Frequency fmax kHz 40 (200-500 CPR) 55 (500-512 CPR)
    110 (1000-1024 CPR)
    220 (2000-2048 CPR)
    Operating Temperature θmax °C -20 to +85 -20 to +85
    Encoder Weight (Mass) WE oz 0.2 0.2
    g 5.6 5.6
    Connection Chart
    PIN COLOR E30C E30D E30C1 E30D1
    1 Black Encoder Ground Encoder Ground
    2 White Vcc Vcc
    3 Green/White - - Index I̅
    4 - - -
    5 Blue/White - Channel A̅
    6 Blue Channel A Channel A
    7 Violet Channel B Channel B
    8 Violet/White - Channel B̅
    9 Green - Index - Index
    10 Green/Yellow Motor Ground Motor Ground
    E30C1 & E30D1: Optional Differential LD connections shown in grey

    Recommended Encoder Data Sheets
    Q Encoder Data Sheet.pdf

    Alternate Encoder Data Sheets

    H Encoder Data Sheet pdf
    E30C/D Data Sheet.pdf

  • Brakes +


    B30A Brake
    The B30A power off, fail safe holding brake is designed to hold a load in position when power is removed from the motor and brake. This compact 30mm brake has a holding torque of 0.113 Nm (1 Lb-in). The B30A is typically mounted to the motor rear.

    Features:
    • Holding torque of 0.113 Nm
    • Factory-set Air Gap
    • Low profile mounting plate
    • Rigid molded friction disk

    Salient Characteristics
    BRAKE DATA UNITS 12V 19V 24V 30V
    Applied Voltage Vdc 12 19 24 30
    Holding Torque Nm 0.113 0.113 0.113 0.113
    lb-in 1.0 1.0 1.0 1.0
    Current A 0.33 0.21 0.17 0.13
    Resistance Ohms 36 90 134 219
    Inertia Kg-m2 2.82E-7 2.82E-7 2.82E-7 2.82E-7
    oz-in-sec2 4.00E-5 4.00E-5 4.00E-5 4.00E-5
    Weight (Mass) Kg 0.0625 0.0625 0.0625 0.0625
    Lbs 0.14 0.14 0.14 0.14

    Dimensional Drawings

    Recommended Brake Data Sheets
    B30A Brake Data Sheet pdf

    Alternate Brake Data Sheets
    B49A Brake Data Sheet pdf