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7 Detailed Functions
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
7-5 Multi-function Terminal Functions (Group C)
7
The MP Gain Setting (C105) is available for setting the output gain only when an signal that provides
PWM output is selected in the MP Selection (C027).
When the MP Selection (C027) is set to 08 (Digital current monitor), you can set the output pulse in the
Digital Current Monitor Reference Value (C030). Then, the C030 value will be output as a 1440-Hz
pulse.
*1. 00 (Output frequency) represents a frequency value that takes into account the aspects of vector control
compensation (such as sensorless vector control) and even stabilization control.
07 (LAD frequency) represents the frequency commanded by the inverter and is equivalent of the Output
Frequency Monitor (d001) value.
*2. When Sensor vector control is selected (A044 = 05), the real frequency (detected frequency) will be displayed.
*3. This signal will be output only when Sensorless vector control, 0-Hz sensorless vector control, or Sensor vector
control is selected in Control Method (V/f Characteristics) on page 7-34.
*4. When the Frequency Conversion Coefficient (b086) is set, the Digital output frequency signal will be converted
into a gain value. Refer to Output Frequency Monitor (After Conversion) [d007] on page 7-4.
*5. For the digital current monitor function, refer to MP Gain Setting on page 7-141 in the next section.
*6. For functional details, refer to “DriveProgramming User’s Manual (I580)”.
MP Gain Setting
Parameter No. Function name Data Default data Unit
C105 MP Gain Setting 50. to 200. 100 %
C030
Digital Current Monitor
Reference Value
Heavy
load
(CT)
0.20 x Rated current to 2.00
x Rated current (Current
value at digital current
monitor output 1440 Hz)
Rated current A
Light
load
(VT)
0.20 x Rated current to 1.50
x Rated current (Current
value at digital current
monitor output 1440 Hz)
Rated current A
Related functions C027, b081
(Example 1) PWM output (Example 2) Pulse output
Cycle T: Constant (6.4 ms)
Duty ratio t/T: Variable
Cycle T: Variable
Duty ratio t/T: Fixed to 1/2
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