Omron MX2 Series - Frequency Limit

5 Basic Settings
5 - 30
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
Precautions for Correct Use
The Output Frequency Setting/Monitor (F001) shows the frequency reference in the internal
memory (RAM).
F001 displays the frequency reference value selected at that time.
If you change the frequency reference value displayed in F001 and save it (by pressing the
Enter key), the data will be stored with the multi-step speed reference selected at that time.
• For the multi-step speed reference 0, the data will be stored with the 1st Multi-step Speed
Reference 0 (A020)/2nd Multi-step Speed Reference 0 (A220) according to the 1st/2nd Con-
trol Method selection.
• For the multi-step speed reference 1 to 15, the data will be stored with the corresponding
Multi-step Speed Reference 1 to 15 (A021 to A035).
* The frequency reference of Digital Operator (Volume), Control circuit terminal block (Analog
input), Modbus communication, Option, DriveProgramming, and Operation function output
cannot be changed in F001.
5-5-3 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 Maximum Frequency
(A004/A204).
• The Output Frequency Setting/Monitor (F001) and the Multi-step Speed Reference 1 to 15 (A021 to
A035) must be within the range defined by the upper limit and lower limit settings.
• The upper/lower limit setting is disabled when set to 0 Hz.
• When Frequency Lower Limit (A062/A262) is set, the output frequency will be a frequency set by the
lower limit, even if the frequency reference is set below the lower limit. Even if you set the frequency
reference to 0 Hz, the lower limit takes precedence, so turn OFF the RUN command to make it stop.
• Based on the relationship between free v/f 7 and limits, a warning will be triggered.
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
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 (b082) to 1st Fre-
quency Upper Limit
A262
2nd Frequency Lower Limit
*1
0.00: Disabled (Function not active)
Starting Frequency (b082) to 2nd
Frequency Upper Limit
Related functions
C001 to C007
*1. To enable the switching to the 2nd control, allocate one of the Multi-function Input Terminal 1 to 7 Selection (C001
to C007) to 08 (SET) and turn ON that terminal.