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The nature of servo operation requires specific characteristics of the power source. In most cases, the source is an AC line, single or three phases, “direct to the mains,” or via an isolation transformer.
Servo operation requires a voltage source that is reliable, simple and most importantly one that is able to deliver “momentary” high power demands and that “conducts” power from and to the motor (four quadrants).
In addition, the power supply must withstand a “hostile” operating environment such as: voltage instabilities, high spikes, transients, bursts, EMI, high mechanical vibrations and mechanical shocks, extreme temperature, and high humidity.
The power consumption behavior of a servo application contains many accelerations and declarations that require momentary high power peaks, while the average power required is significantly lower.
A significant advantage of the Shared DC is the shared shunt regulator. Servo operation is characterized by very short and sharp braking or fast direction changes.
As it is rare that all drives are regenerating energy back to the DC bus simultaneously, one shared shunt regulator can serve a few servo drives at the same time.
With the AC Common, each drive has its own shunt regulator that must be powerful enough to absorb its motors energy regeneration on its own.
The Global Servo Drive Power Supply market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Beckhoff AMP8600 Distributed power supply modules – With the AMP8000 distributed servo drive system, the servo drive is relocated directly from the control cabinet to the machine.
In addition to the AMP8000 distributed servo drives, the system offers additional components for power supply (AMP8620), distribution (AMP8800) or coupling (AX883x) to a conventional servo drive group to generate a compact and flexible solution for modular machines.
With the power supply module of the distributed servo drive system, a drive technology solution completely without a control cabinet can be realized.
The components normally located in the control cabinet are now distributed to the power supply module and the distributed servo drive in an IP65 version.
Thus, not only are the required space inside the control cabinet and the necessary air conditioning eliminated, but also the associated wiring work is reduced.
