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5 Basic Settings
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
5-5 Frequency Reference Settings
5
5-5-2 Frequency Limit
• Use this function to set the upper and lower limits of the output frequency. The set limits will be
applied if the input frequency reference is beyond the upper/lower limit(s).
• Set the upper limit first. Be sure that the value set in the 1st/2nd Frequency Upper Limit (A061/A261)
must be larger than the value set in the 1st/2nd Frequency Lower Limit (A062/A262).
• Set the upper and lower limit values so that they do not exceed the 1st/2nd/3rd Maximum Frequency
(A004/A204/A304).
• Set the Output Frequency Setting/Monitor (F001) and the Multi-step Speed Reference 1 to 15 (A021
to A035) whithin the upper and lower limit settings.
• The upper/lower limit setting is disabled when 0 Hz is set.
• These functions are disabled when the 3rd control is selected.
Setting the lower limit causes the inverter to output the frequency set in the 1st/2nd Frequency Lower
Limit (A062/A262) when 0 V (4 mA) is input to the frequency reference.
The graph below shows the FV/FI characteristics with the default analog input adjustment function
settings (FV: A012 to A015, FI: A101 to A105).
5-5-2 Frequency Limit
Parameter No. Function name Data
Default
data
Unit
A061 1st Frequency Upper Limit
0.00: Disabled (Function not active)
1st Frequency Lower Limit to 1st
Maximum Frequency
0.00 Hz
A261
2nd Frequency Upper Limit
*1
*1. To enable the switching to the 2nd control, allocate one of the Multi-function Input S1 to S8 Selection (C001 to
C008) to 08 (SET) and turn ON that terminal.
0.00: Disabled (Function not active)
2nd Frequency Lower Limit to 2nd
Maximum Frequency
A062 1st Frequency Lower Limit
0.00: Disabled (Function not active)
Starting Frequency to 1st
Frequency Upper Limit
A262
2nd Frequency Lower Limit
*1
0.00: Disabled (Function not active)
Starting Frequency to 2nd
Frequency Upper Limit
Related functions C001 to C008
When Using FV-FC, FI-FC
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