Toshiba VF-SX - Manual (Page 123)

12-2
TOSHIBA
This portion of the manual describes the different parameters available for
frequency control of the basic Toshiba VF-SX drive features. These different
values and settings are shown below.
1. Differences Between Start-up Frequency and Operation Starting Frequency
2. [F*“5
t]
Start-up Frequency Setting
3.
[ F r u r i ]
Operation Starting Frequency
4. [ F H y S ] Operation Starting Frequency Hysteresis
5.
[ F
l
I . D ]
Jump Frequency
6
.
[ F J I . b F J I . F J B , b F J B . F J 3 , d F J 3 ]
Jump Frequencies and Bandwidths
7. [F F] PWH Carrier Frequency
8.
[C
F 5] Motor Tone Selection
9.
[P 0
U
b
] Output Voltage Adjustment
10.
i P R d J ]
Power Voltage Compensation
11. [flub]
Automatic Torque Boost
11.1
[ C U r O ]
No-Load Current
11.2 [ U b H ] Torque Boost Maximum Value
12. [5 F C ] Slip Frequency Compensation
12.1 [
C U r O ]
No-Load Current
12.2 [5F
i
~] Motor Rating Slip Frequency
12.1 Differences Between Startup Frequency and
Operation Starting Frequency
START-UP FREQUENCY: [
F-5t
The start-up frequency output parameter is the lowest initial frequency output
that the drive can ever send to the motor. The drive does NOT ramp up to this
output level. When the frequency setting signal increases enough to reach the
assigned start-up frequency, this frequency value is immediately output to the
motor. The drive will not provide any output frequency to the motor until the
frequency setting signal reaches the assigned start-up frequency. This start-up
frequency parameter is always an assigned frequency, and cannot be set to more
than 10 Hz. Similarly, when the drive is decelerated to stop, the drive output
devices turn off at the start-up frequency, and the motor coasts to stop from
that point.