GE Industrial Solutions AF-300C AC Drive - Manual (Page 76)

GEK-85718
Adjustment of Upper/Lower Limits
Function 14 High Output Freq. Limiter
Function 15 Low Output Freq. Limiter
The upper and lower limiters can be set so that the
inverter output frequency will stay within these
limits.
will prevent motor overspeed and
speed.
NOTE: If the High Limit is set lower than the Low
Limit, the Low Limit will be ignored and an error in-
dication
will be displayed.
0 to
0 to
time setting I)
Function Acceleration Time
Function 17 Deceleration Time
The acceleration and deceleration times define the
amount of time it takes between 0 Hz and
t : 0.2 to 3600 seconds
t : 0.2 to 3600 seconds
Function 18 Frequency Gain (Gain) I
The frequency gain adjustment can be used to
scale the analog voltage reference at the top end.
Gain: 0 to 200%
When the freauencv setting is applied with a
current input, this function cannot be used.
Function 19 Torque Boost I
21 patterns can be selected boost = 0 to 20).
-- Patterns (0) and (1) are used for low torque loads
(available for fans and blowers, thus improving
characteristics such as vibration, noise, and effi-
ciency.
-- Pattern (2) is characteristic of V proportional to
the square of f up to
-- Pattern (3) is characteristic of constant V/f up to
-- Patterns (4) through (20) are to increase V/f in a
low frequency range between 0 to to
make up the torque at low speed operation and
to give torque boost characteristics.
Torque Boost: 0 to 20
look
0
I
T i m e
E
Output
6-2