Inverter Setting Variables - Omron RX2 Series User Manual

5 DriveProgramming User Variables
5-4

Inverter Setting Variables

This section describes the variables provided for setting inverter's frequency reference and accelera-
tion/deceleration time.
Use these variables to control the inverter via the DriveProgramming program.
Frequency Reference Variable SET-Freq
When you directly control the frequency reference by the DriveProgramming function, set the Main
speed input source selection [AA101] to 14 (Program function) to enable the frequency reference vari-
able SET-Freq.
Function
variable
SET-Freq Frequency reference variable
• The frequency reference variable SET-Freq is an unsigned 1-word variable.
• The variable is enabled only when you set the Main speed input source selection to 14 (Program func-
tion).
Set in the 1st/2nd Main speed input source selection (AA101/AA211).
Allocate 24 (SET 2nd control) to Input 1 to 9, A and B to switch the control.
• The frequency reference variable SET-Freq is cleared to zero when the power supply is turned ON.
Any data saving measure like EEPROM is not provided.
• To set initial data, create a program in which the initial data is set to SET-Freq.
• The range of frequency that the inverter can actually output is from the Minimum frequency adjust-
ment, 1st-motor (Hb130) to the maximum frequency.
If the set data is out of range, the inverter operates as follows.
• Less than Minimum frequency adjustment, 1st-motor (Hb130)
When Control mode selection (AA121) is set to 09 (Zero-Hz range sensorless vector control) and 08
(Sensorless vector control), the Minimum frequency adjustment, 1st-motor (Hb130) is disabled and the
specified frequency is output.
• More than maximum frequency
Limits the frequency reference to the value set in the 1st/2nd Maximum Frequency
(Hb105/Hd105/Hb205/Hd205).
• You can monitor the frequency reference set in the frequency reference variable SET-Freq by using
the inverter's parameter Main Speed reference monitor (FA-01).
Precautions for Correct Use
When the DriveProgramming program is stopped, the data of the frequency reference variable
before the program stop is retained. When the program execution is started again, the process
begins with the retained data.
5 - 12
Description Data range
0 to 59,000
Default
Unit Data size
data
0 0.01 Hz Unsigned
1 word
DriveProgramming User's Manual (I622-E1)
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