Servo amplifiers and drives are used extensively in motion control systems where precise control of position and/or velocity is required. The amplifier/drive simply translates the low-energy reference signals from the controller into high-energy signals (motor voltage and current). These reference signals represent either a motor torque or a velocity command and can be either analog or digital in nature.
Typically, an analog +/-10 VDC signal is the most common. However, check out the networking drives section below, where your amplifier(s) connect to your PC over a high-speed network and operate in a "mater-slave" configuration. Up to 32 axes can be connected over a single network. Great for multi-axis applications or as a low cost motion solution.
