Toshiba VF-SX - Manual (Page 37)

7-2 TOSHIBA
7.1 Definitions of SX Drive Group Parameters
[ C r . U ] : USER PARAHETERS
This display shows all parameters which have been phanged from factory preset
values. This is a quick, easy way to examine drive parameters and tell at a
glance which parameters or functions have been changed, without having to search
through all the menus to examine each parameter and compare the value to the
factory preset value.
[ G
r.
F ]:
FUNDAHEHTAL PARAHETERS {See Chapter 9)
This set of values contains adjustable parameters considered "fundamental” to
drive operation and application. These include acceleration and deceleration
times, base frequency, forward and/or reverse operation, upper and lower
operating frequency limits, and options for the Volts Per Hertz (V/f) ratios.
The option to reset the drive to all factory preset values or clear all past
trips is available from this menu.
[C r. 5 fc]:
TERHINAL SELECTION PARAMETERS (See Chapter 10)
This set of values defines how different input and output terminals will function
during drive operation and affect drive operation. Virtually all commands
required for remote control or automatic operation of the drive are found in
these parameters. These functions allow the drive to signal when an upper or
lower limit has been reached, if the drive is running in forward or reverse, and
if the drive is accelerating or decelerating. Enabling or disabling various
control terminals and setting up multiple speed running conditions is available
from this menu.
[
C
r. P r ]: PROTECTIVE FUNCTION PARAMETERS (See Chapter 11)
This set of values defines the type and amount of motor protection which will be
enabled during operation of the motor and driven load. Emergency stop, DC
injection braking, restart or "retry", current and voltage limits, stall enable
and parameters, and trip history are located in these parameters. The
programmable settings of the electronic overload as recognized by the National
Electrical Code are included in this section.
[ C r . C C ]
: CONTROL AND COMMUNICATION PARAMETERS (See Chapter 12)
This set of values identifies critical frequency parameters. These include the
PWH carrier frequency, motor tone selection, initial startup frequency, jump
frequency for critical resonance protection, automatic torque boost, slip
frequency compensation, and frequency hysteresis, which precludes rapid ON/OFF
cycling around a setpoint.
[ O r . R fl]: METER ADJUSTMENT PARAMETERS (See Chapter 13)
These parameters control and adjust the scaling of the signals which drive remote
ammeters or frequency meters, provide bias and gain adjustments, and define the
Universal Unit Multiplication Factor, an output scaled to Hz, but user defined
to some other parameter other than frequency.