Emerson FM-3 - Manual (Page 284)

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FM-3 Programming Module Reference Manual
PowerTools Pro
PowerTools Pro is a Windows® based software to interface with the EN or MDS drive with
an attached FM-3 or FM-4 module.
Radio Button
Also known as the Option Button. In a dialog box, radio buttons are small circles only one of
which can be chosen at a time. The chosen button is black and the others are white. Choosing
any button with the mouse causes all the other buttons in the set to be cleared.
RAM
RAM is an acronym for Random-Access Memory, which is a memory device whereby any
location in memory can be found, on average, as quickly as any other location. Commonly
refers to Read-Write memory, as opposed to Read-Only Memory (ROM, EPROM,
EEPROM, Flash). RAM is considered volatile, because its contents are lost during a power
loss.
RMS
Root Mean Squared. For an intermittent duty cycle application, the RMS is equal to the value
of steady state current which would produce the equivalent heating over a long period of time.
ROM
ROM is an acronym for Read-Only Memory. A ROM contains computer instructions that do
not need to be changed, such as permanent parts of the operating system.
RPM
Revolutions Per Minute.
Serial Port
A digital data communications port configured with a minimum number of signal lines. This
is achieved by passing binary information signals as a time series of 1’s and Ø’s on a single
line.
Source
The terminals at which energy is taken from a circuit or device.
Travel Limit
The distance that is limited by either a travel limit switch or the software.
Torque
The moment of force, a measure of its tendency to produce torsion and rotation about an axis.