Difference between revisions of "Argon user guide/Motor compatibility"
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Revision as of 16:58, 16 June 2013
This is a short guide for determining whether or not a motor is suitable for Argon.
'Motor type must be one of the following (rotary or linear):
- Permanent magnet brushed DC
- Permanent magnet brushless DC (BLDC)
- Permanent magnet AC
Servomotors must be equipped with an compatible Feedback devices
- 2 channel encoder is enough for all motor types
- Index channel is not required but is supported for precise homing
- Hall or commutation sensors are not required but are supported for AC/BLDC motors
- Suitable encoder resolutions are from about 100 PPR to 131070 PPR (pulses or lines per revolution)
Motor voltages and currents can introduce some limitations to motor output speed and torque but does not cause unsuitability.
- Motor voltage is the limiting factor for maximum speed. For example, if you have a 200 VDC brushed DC servo motor and run it at 115 VAC using Argon, then you can expect to get a speed of 115*1.41*88%*/200V = 71% of motor's rated speed. 88% comes from Argon's effective voltage swing at power outputs (see Argon specifications).
- Motor current is the limiting factor for maximum torque. For example, if you have motor rated for 20A DC and drive's maximum output is 10A DC, then you get 50% of the rated torque.
Argon has high dynamic range torque control which makes it suitable also for very small motors, such as ones with rated current around 500 mA.
