7-21
7.7 Frequency limit
z Frequency limit using Max Frequency and Start Frequency
Group Code Parameter Name Setting Range Initial Unit
Function
group 1
F21 [Max frequency]
- 0 ~ 400 60.00 Hz
F23 [Start frequency]
- 0.1 ~ 10 0.50 Hz
Max Frequency: Frequency highest limit. Any frequency cannot be set above [Max
frequency] except for F22 [Base frequency].
Start Frequency: Frequency lowest limit. If a frequency is set lower than this, 0.00 is
automatically set.
z Frequency command limit using High/Low limit
Group Code Parameter Name Setting Range Initial Unit
Function
group 1
F24
[Frequency high/low
limit select]
1
0 ~ 1 0
F25 [Frequency high limit] - 0 ~ 400 60.00 Hz
F26 [Frequency low limit] - 0 ~ 400 0.50 Hz
Set F24 to 1.
Active run frequency can be set within the range of 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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