7 Detailed Functions
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High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
• Use this function to output a detection signal when the output frequency of the inverter falls below the
0 Hz Detection Level (C063).
• Allocate one of the Multi-function Output P1 to P5 Selection (C021 to C025) or the Multi-function
Relay Output (MA, MB) Function Selection (C026) to 21 (ZS) to enable this function.
• This function works upon the inverter output frequency when the control method is set to Constant
torque characteristics, Special reduced torque characteristics, Free V/f setting, Sensorless vector
control, or 0-Hz sensorless vector control, or upon the motor rotation frequency when the control
method is set to Sensor vector control.
Use this function to output the inverter trip factor as a 3-bit or 4-bit code signal.
0-Hz Detection Signal (ZS)
Parameter No. Function name Data Default data Unit
C021 to C025
Multi-function Output P1
to P5 Selection
21: ZS (0-Hz detection signal)
–
–
C026
Multi-function Relay
Output (MA, MB)
Function Selection
05
C063 0 Hz Detection Level
0.00 to 99.99
100.0
Set a frequency to be detected as
0 Hz.
0.00 Hz
Related functions A044, A244, A344
Alarm Code Output (AC0 to AC3)
Parameter No. Function name Data Default data Unit
C062 Alarm Code Selection
00: Disabled
01: 3 bits
02: 4 bits
00 –