Table 1-4: Servo Amplifier Electrical Specifications - Aerotech Ensemble Epaq Hardware Manual

Introduction
Table 1-4: Servo Amplifier Electrical Specifications
Description
Peak Bus Voltage
Peak Output Current
Continuous Output Current
PWM Switching Frequency
Power Amplifier Bandwidth
Minimum Load Inductance
Power Input
The following equations can be used to determine total system power requirements. The actual power
required from the mains supply will be the combination of actual motor power (work), motor resistance
losses, and efficiency losses in the power electronics or power transformer.
For switching amplifier types:
An EfficiencyFactor of approximately 90% should be used in the following equations.
Brushless Motor
Output Power
Rotary Motors
Linear Motors
Rotary or Linear Motors
Ploss = 3 * I(rms)^2 * R(line-line)/2
Pin = SUM ( Pout + Ploss ) / EfficiencyFactor
DC Brush Motor
Pout [W] = Torque [N·m] * Angular velocity[rad/sec]
Ploss = I(rms)^2 * R
Pin = SUM ( Pout + Ploss ) / EfficiencyFactor
For linear amplifier types:
An EfficiencyFactor of approximately 50% should be used in the following equations.
Linear Motor
Pdiss[W] = MotorCurrentPeak[A] * TotalBusVoltage[V] * 3 / 2
Pin = SUM ( Pdiss ) / EfficiencyFactor
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MP
80 VDC
10 A
pk
5 A
20 kHz
Software Selectable
0.1 mH @ 80 VDC
100 to 230 VAC nominal input voltage (50/60 Hz)
Pout [W] = Torque [N·m] * Angular velocity[rad/sec]
Pout [W] = Force [N] * Linear velocity[m/sec]
Pout [W] = Bemf [V] * I(rms) * 3
Chapter 1
ML
40 VDC
10 A
pk
5 A
N/A
Software Selectable
N/A
9