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DA42DBB-12 Electric Motor Datasheet


Manufacturer typenumberDA42DBB-12
Manufacturer brandEAD motors
Commutationbrushless
Short description of the motorNEMA 17 Brushless DC Servo Motor

Performance data

Nominal terminal voltageUnom [V]90.000
Maximum rated currentImax [A]13.000
Maximum rated torque at standard temp.22 oCTmax [Nm]2.834
Motorconstant at standard temp. 22 oCk [Vs/rad or Nm/A]2.180e-1
Maximum torque at standstill at nominal voltageTstall [Nm]4.126
Maximum theoretical velocity motoraxis at no load (and no friction of motor and reduction) and nominal voltageω0 [rad/s]412.844
Maximum output power equal to 1/4Tstallω0Pmax [W]430.851

Mechanical data

Inertia of rotorJrotor [kgm2]2.521e-4
Maximum acceleration at standstill if no load or reduction is attachedmax. accel [rad/s2]1.105e+4
Constant friction torque of motor on motoraxisTfric [Nm]0.049
Velocity-dependant friction torque of motor on motoraxisCv [Nm/rad]0.000e-1
Amount of pole-pairsp2
Mechanical timeconstantτmech [s]2.493e-2

Electrical data

resistance windings measured at terminals of motor at standard temp. 22 oCR2ph [Ω]4.700
Winding inductance measured at terminals of motorL2ph [H]5.000e-3
Slope of the motorS [Nms/rad]1.011e-2
Electrical timeconstantτelec [s]1.064e-3

Thermal data

Maximum allowed temperature of windingsΘmax [oC]125.000
Maximum continuous current (thermal limit) at surround temp. 22 oC and at stillstandImax, thermal [A]3.425
Thermal resistance between rotor and ambientRth,total [K/W]1.330

Magnet data

the material of the magnetmagnetmaterialunknown
degrading of the magnetic flux density in percent per oC or KTKBr [%/K]-2.000e-1

Remarks:

  1. The velocity dependant friction is not provided so calculation is done with 0. This means that the current may be larger than calculated and the necessary power of the motor may be larger.
  2. The frictiontorque is determined from the slope of the 100% DC-line in the torque-speed-characteristic. This means the value may be inaccurate.
  3. The vendor has not provided magnetmaterial. The derating for the magnetstrength is not given so 'worst case' is used of -0.2%/K. This means that the calculated temperature may be inaccurate.
  4. Cth,total is not provided. This means that the time when thermal stability occurs can not be calculated.
  5. The heatsink used for this motor is 6 '' x 6 '' x 1/4 '' Alu

The quality and completeness of the supplied information has quality index: D

This quality index is determined by specAmotor.com. Here is described what the quality index is.


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