Dynamic DX User Manual

MT
Determining the motor resistance
There are three ways to determine the motor resistance:
1. Look at the motor data that is provided by the manufacturer of the motor.
2. Measure the motor resistance.
3. Look at the powerchair behaviour.
1. Find the resistance of a motor in the motor data sheets
• Look for "Motor Resistance", "Terminal resistance", "Minimum stall resistance",
"Armature winding resistance" or "Winding resistance" or "R". Use this value
directly when it is given in milliOhms, mOhms or mΩ. Multiply by 1000 when it is
given in Ohms or Ω.
• Look for the "Stall Current", sometimes this is located under "Stall Torque" or
"Peak Torque". In the motor graph it is the current when the speed is zero.
The motor resistance is the nominal voltage divided by the stall current.
Motor resistance = Nominal Voltage / Stall Current
In the example above: 12V / 45A = 0.266 Ω = 266 mΩ
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Dynamic DX Specifications

General

Brand	Dynamic
Model	DX
Category	Network Router
Language	English