TOSHIBA
9.2
USER GROUP PARAMETERS (cont'd)
PATTERN OF ACC/DEC #2 (ITEM 9) - Select as an alternate one of the three output
frequency patterns. These patterns are the same as those for acc/dec pattern #1 and
are shown in the pattern curves from the previous page. Use function [:SEL2] to select
either acc/dec pattern #1 or #2.
SELECTION TO USE ACC/DEC #1 OR #2 (ITEM 10) - Use this function to select
either acc/dec #1 or acc/dec #2.
V/F PATTERN (ITEM 11) - Use this function to select either variable or constant torque.
The V/f characteristic may be set for constant torque loads, resulting in a linear
relationship between output voltage and frequency. The setting for variable torque loads
sometimes results in energy savings and lower motor noise, if the application is suitable.
Fans and centrifugal pumps are the most common types of loads associated with the
variable torque load V/f pattern (Factory default setting is variable torque).
TIMED STOP/COAST TO STOP SELECTION (ITEM 12) - Use this function to select
either a timed deceleration to a stop or a power off coast to a stop.
PERSONAL LOCK OUT CODE (ITEM 13) - Use this function to establish a security
entry code for programming the inverter functions. This function locks out access to the
PRG and SETUP parameters.
Removal of power does not remove the security lock
feature. Remember the code. In order to clear "personal lock out code" press and
continue to hold the CLEAR key while pressing the "up" arrow key. Press the "up"
arrow key to scroll to the
correct code number and then press the WRITE key.
9 - 4
OUTPUT VOLTAGE
V/f Curve for variable torque
100%
Base
Frequency
OUTPUT FREQUENCY
OUTPUT VOLTAGE
V/f Curve for constant torque
100%
Base
Frequency
OUTPUT FREQUENCY
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