Rockwell Automation 2364P Parallel DC Bus Supply Config. - Manual (Page 213)

Publication 2364P-5.01 December 1999
Glossary
Control Power Filter
A filter used to reduce harmonics and noise in the 115V AC control power.
Disable
When a unit is disabled, the control logic is not directing current flow operations. A
unit is typically disabled by a disable command or by a fault condition.
Disconnect
A circuit breaking device.
Enable
When a unit is enabled, the control logic is directing the motoring or regenerative
current by modulating its hardware (IGBTs).
Feedback
Signals from the hardware which indicate the hardware status to the control logic.
Gate Driver Board
The RGU gate driver board is responsible for modulating the power modules and
supplying power to the control boards. The gate driver board is interfaced with the
main control board.
Graphic Programming Terminal (GPT)
A programming terminal with a graphical LED display and a pushbutton keyboard
which is used to program, control, and view the status of a unit. The GPT is also
able to load and store parameters in its local memory.
Host Processor
The main processor on the main control board of the RGU. This component
processes feedback and controls most of the activities in the RGU.
Human Interface Module (HIM)
A programming terminal used to program, control, and view the status of a unit.
Insulated Gate Bipolar Transistor (IGBT)
A transistor which can be used to allow current to flow in two opposite directions.
Also known as power module.
Isolation Board
The RGU isolation board receives direct feedback from the AC line, DC bus, and
current transducers. This board supplies scaled feedback to the main control board.
Main Control Board
The RGU main control board regulates the voltage and current, oversees activities
in the unit, and processes I/O. This board is isolated from the power circuitry.
Metal-Oxide Varistor (MOV)
A component used to protect against voltage surges and excessively high
line-to-line/line-to-ground voltages.