maxon motor EC Series User Manual

maxon EC motor
10 Document ID:: rel8710 EC-i30 IE
Edition: March 2019 Operating Manual
© 2019 maxon motor. Subject to change without prior notice.
3 Functional Description
3.1 Inputs
3.1.1 Set point «Set value speed»
The motor speed is set with the analog input «Set value speed». The input is protected against overvolt-
age up to the maximum operating voltage.
Figure 7 «Set value speed» – Input circuitry
The speed set value is set with the voltage at the set value input. The set speed is controlled by the con-
troller. Changes to speed set value are executed by a delayed internal speed ramp.
A set value smaller a predefined minimum voltage (Table 1) disables the power stage, the motor shaft
coasts.
Table 1 «Set value speed» – Setpoint range
Pin assignment Connection wire «Set value speed», white
Input voltage range 0…+10.1 V (referenced to GND)
Input impedance
101 kΩ (in range of 0…+11.1 V)
68 kΩ (in range of +11.1 V…+V
IN
)
Continuous overvoltage protection −30…+30 V
Nominal design point 10.0 VDC equals 6'000 rpm
Set Value Function Remarks
0.00…0.21 V IDLE mode Motor not engaged or coasts
0.21…0.42 V Operation at minimal speed (250 rpm)
0.42…10.0 V
Linear speed setting between 250 rpm
and 6‘000 rpm
10.0…10.1 V
Linear speed setting between 6‘000 rpm
and 6‘060 rpm

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