Toshiba VF-nC1 User Manual
Page 58
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E-6
5
5.6
Maximum frequency
HJ : Maximum frequency (Hz)
Output frequency (Hz)
When HJ = 80Hz
When HJ = 60Hz
80Hz
60Hz
0 100% Frequency setting signal (%)
• This function determines the
maximum value in line with the
ratings of the motor and load.
• Maximum frequency cannot be
adjusted during operation. To
adjust, first stop the inverter.
★
If HJ is increased, adjust the upper limit frequency WN as necessary.
■
Parameter setting
Title
Function
Adjustment range
Default setting
HJ
Maximum frequency (Hz)
30.0~200 (Hz)
*
* The value is changed according to the set-up parameter condition.
(VFNC1 (S)-□□□□P□-W type)
80 [Hz] for VFNC1 (S)-□□□□P□-W type.
5.7
Upper limit and lower limit frequencies
WN : Upper limit frequency (Hz)
NN : Lower limit frequency (Hz)
0 100%
Output frequency (Hz)
WN
HJ
Frequency setting signal
★
Signals with a frequency
higher than the frequency set
with WN will not be put out.
Upper limit
frequency
0 100%
Output frequency (Hz)
HJ
NN
Lower limit
frequency
Frequency setting signal
★
The output frequency
cannot be set below the
frequency set with NN.
■
Parameter setting
Title
Function
Adjustment range
Default setting
WN
Upper limit frequency (Hz) 0.5~HJ (Hz)
*
NN
Lower limit frequency (Hz) 0.0~WN (Hz)
0.0
* The value is changed according to the set-up parameter condition.
(VFNC1 (S)-□□□□P□-W type)
80 [Hz] for VFNC1 (S)-□□□□P□-W type.
• Function
1) Programs the range of frequencies output by the inverter (maximum output values).
2) This frequency is used as the reference for acceleration/deceleration time.
• Function
Programs the lower limit frequency that determines the lower limit of the output frequency
and the upper limit frequency that determines the upper limit of that frequency.