Omron MX2 Series - Real Frequency Monitor [D008]; Torque Reference Monitor [D009]

7 Other Functions
7 - 7
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
Additional Information
• When the 1st/2nd Frequency Reference Selection (A001/A201) is set to 02 (Digital Operator:
F001), if the d001/d007 Data Setting Selection (b163) is set to 01 (Enabled), you can change
the Output Frequency Monitor (After Conversion) (d007) by the Jog dial only during
operation.
• The Output Frequency Monitor (After Conversion) (d007) value is reflected on the Output
Frequency Setting/Monitor (F001) setting. The value is stored in EEPROM when you press
the Enter key.
• Because the inverter updates the F001 value while displaying d007, the input value may not
be displayed immediately depending on the acceleration/deceleration time.
• The monitor value cannot be changed while the PID function is activated/stopped.
• In the individual input mode, it is not possible to change the frequency by pressing and hold-
ing the Enter key.
7-1-8 Real Frequency Monitor [d008]
Use this function to display the real frequency of the motor when you perform V/f control with speed
feedback or simplified position control.
Set the Pulse Train Input EA Selection (P003) to 01 (Feedback pulse) to enable the function.
The Real Frequency Monitor (d008) is available only for the 1st control and independent of the 1st Con-
trol Method (A044) setting.
Parameter
No.
Function name
Data
Default
data
Unit
d008
Real Frequency
Monitor
−590.00 to −590.00
−
Hz
Related functions
P011, H004, H204
Precautions for Correct Use
Set the Number of Encoder Pulses (P011) and the 1st Motor Pole Number (H004) correctly.
For the feedback signal setting and wiring instructions, refer to 6-5 V/f Control with Speed
Feedback on page 6-18 or 6-7 Simple Position Control on page 6-28.
7-1-9 Torque Reference Monitor [d009]
Use this function to display the torque reference value that is input during operation under sensorless
vector control.
To use torque control, set the Multi-function Input 1 to 7 Selection (C001 to C007) to 52 (ATR) and turn
ON the terminal ATR.
For details on torque control, refer to 6-4 Torque Control on page 6-16.
The torque reference monitor function estimates the torque value equivalent to the rated current of the
inverter as 100%.
To convert it to the rated motor torque ratio, use the following formula:
Rated motor torque ratio = Monitor value  Rated output current of inverter / Rated motor current
Parameter
No.
Function name
Data
Default
data
Unit
d009
Torque Reference
Monitor
0. to 200.
−
%
Related functions
A044, A244, C001 to C007, P033, P034
7
7-1 Monitor Mode
7-1-8 Real Frequency Monitor [d008]