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Chapter 9. Basic functions
9.7 Frequency limit setting
z Frequency limit setting based on Max and start frequency
Group LED display Parameter name
Set
value
Min/Max
range
Factory
defaults
Unit
F21 [Max frequency]
- 0/400 60.0 Hz
Function
group 1
F23 [Start frequency]
- 0/10 0.5 Hz
Max frequency: Frequency high limit except for F22 [Base frequency]. Any frequency cannot be set
above [Max frequency].
Start frequency: Frequency low limit. If a frequency is set lower than this, 0.00 is automatically set.
z Run frequency limit based on frequency High/Low limit
Group LED Display Parameter Name
Set
Value
Min/Max
Range
Factory
Defaults
Unit
F24
[Frequency High/Low
limit select]
1
0/1 0
F25 [Frequency high limit] - 0/400 60.0 Hz
Function
group 1
F26 [Frequency low limit] - 0/400 0.5 Hz
Set F24 to 1.
Active run frequency can be set within the range set in F25 and F26.
When frequency setting is done via Analog input (voltage or current input), the inverter
operates within the range of high and low limit frequency as shown below.
This setting is also valid when frequency setting is done via keypad.
Freq.
V1(Voltage input)
Max freq.
0 20mA
10V
I (Current input)
High limit
freq.
Low limit
freq.
When freq. limit is not
selected
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