maxon motor EC Series User Manual

maxon EC motor
12 Document ID:: rel8710 EC-i30 IE
Edition: March 2019 Operating Manual
© 2019 maxon motor. Subject to change without prior notice.
Setting Speed Set Value by PWM Signal
The speed set value can be preset by fixed frequency and amplitude.
The desired set speed value change is obtained by variation of the duty cycle in range of 0…100%.
Both, amplitude and duty cycle thereby have an effect on the resulting speed. The average of the
applied PWM voltage corresponds to the analog input signal of the speed set value.
Remark
Depending on load and type of installation, low PWM frequencies can cause audible speed fluctuations.
Figure 10 Examples for possible PWM activation for the input «Set value speed»
Nominal value amplitude PWM set value 0…+10.1 VDC (referenced to GND)
Max. value amplitude PWM set value −30…+30 VDC (referenced to GND)
Frequency range PWM set value 500 Hz…20 kHz
Modulation PWM set value 0…100%
Continuous overvoltage protection −30…+30 V

maxon motor EC Series Specifications

General

Series	EC
Motor Type	Brushless DC
Voltage	12V, 24V, 48V
Nominal Speed	Varies by model (e.g., 3000 - 10000 rpm)
Nominal Torque	Varies by model (e.g., mNm range)
Peak Torque	Varies by model (typically higher than nominal torque)
Efficiency	Up to 90%
Weight	Varies by model
Protection Class	IP54