Microprocessor Advantages; Displays; Arc-Suppression Feature; Theory Of Operation - Advanced Energy Pinnacle 20 kW Manual

Advanced Energy

Microprocessor Advantages

The internal microprocessor checks for proper circuit operation while supervising all
operating parameters. System diagnostics run when the unit is initially powered up. The most
recent power settings and conditions (such as output production) are retained in non-volatile
memory.

Displays

The displays on the passive panels as well as the control panels show power, current, or
voltage levels. (The displays show levels for unit A and unit B if this is a dual unit.) They also
display information about output, setpoint, interlock, bus fault, overtemperature, arcs, and
error codes.

Arc-Suppression Feature

The Pinnacle supply's arc-handling feature ensures the shortest arc recovery time in the
industry. With the feature enabled, the Pinnacle supply's hard-arc detection time is less than
1 μs, and delivered arc energy is less than 10 mJ for a 10 kW inverter. (Depending on your
unit's output configuration, the energy could be significantly less than 10 mJ.) You can
implement preprogrammed arc-handling functions during your normal process cycle and your
target conditioning cycle (TCC). Arc detect time and arc shutdown time are fixed by target
type (metal or nonmetal). You also can customize your arc shutdown and arc detect delay
times. Parameters, including long arc count limit and voltage trip level, are selectable through
the Pinnacle Remote Active Panel or a serial communications (Host) port.

THEORY OF OPERATION

The Pinnacle power supply is a sophisticated and intelligent dc power supply designed
exclusively for use in vacuum environments. Figure 2-1 on page 2-3 and the following
paragraphs outline the theory of operation.
2-2
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Theory 5702199-A