Rockwell Automation 1395 Digital DC Drive FRN 5-10.10/9.30 - Manual (Page 168)

Chapter 7
Programming Parameters
7-2
Non-Volatile Memory – Data memory in the drive which retains the
values of all data even when power is disconnected from the drive
control. EEPROM (Electrically Erasable Programmable Read Only
Memory) chips are used for the 1395 non-volatile memory to store some
of the drive parameters.
Parameter Table – Table of parameter entries for all configuration and
setup parameters used in the drive.
Parameter Entry – Information stored in the drive which contains the
parameter number, parameter data and all other information related to the
specific parameter.
Parameter – Memory location used to store drive data. Each parameter
is given a number called the parameter number. The parameter value
may be specified in decimal, or in hexadecimal. When specified in
hexadecimal, the word “Hex” will appear after the parameter value.
Per Unit Numbering – Per Unit numbering is a numbering system
which defines a specific numeric value as representing 100% of a
particular quantity being measured. The number 4096 is used in many
places in the drive to represent 1 Per Unit (100%) [pu].
For Example: The number 4096 in Parameter 106 (Velocity Fdbk)
represents base motor speed. The number 4096 in Parameter105 (Arm
Voltage Fdbk) represents rated motor armature voltage.
Real Time Data – Real Time data is defined as any data which is
updated at a rate equal to or faster than that required by the control in
order to regulate the drive within the desired bandwidth. All Fast
Parameters are considered to be real time within the 1395 drive.
Set Up Parameter – Parameter which is used to store information
required by the drive in order to perform the regulation functions of the
drive. Setup parameters include parameters used for calibration, scaling
and some selection functions required to setup the drive for operation.
Data stored in Setup parameters may be backed up in non-volatile
memory (EEPROM).
IMPORTANT: The user should become familiar with the
programming terminal manual 1300-5.55 before attempting any
change of parameters.
DO NOT INITIALIZE THE DRIVE UNDER EEPROM MODE.
PRECONFIGURED DATA AND PARAMETERS WILL REVERT
TO DEFAULT VALUES.