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7 Detailed Functions
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
7-3 Basic Functions (Group A)
7
• Use this function to clear the integral value of PID operation.
• Set the Multi-function Input S1 to S8 Selection (C001 to C008) to 24 (PIDC).
• The integral value is cleared every time the PIDC terminal is turned ON.
Never turn ON the PIDC terminal during PID operation. Doing so may cause an overcurrent trip.
Be sure to disable PID operation before you turn ON the PIDC terminal.
• Low input power supply voltage causes the inverter to produce a low output voltage, which in turn
causes a low motor torque.
This function corrects the output voltage to the motor even when the input power supply voltage to
the inverter fluctuates, ensuring a reliable operation.
• In the AVR Selection (A081), select whether to enable or disable this function.
• The inverter will output voltage to the motor according to the value set in the Motor Rated Voltage
Selection (A082). Note, however, that the inverter cannot output voltage exceeding the incoming
voltage to the inverter.
• To avoid possible overcurrent tripping during deceleration, set the AVR Selection (A081) to 00
(Always ON).
The details of the AVR Selection (A081) are as follows.
PID Integral Reset (PIDC)
AVR (Automatic Voltage Regulator) Function
Parameter No. Function name Data Default data Unit
A081 AVR Selection
00: Always ON
01: Always OFF
02: OFF during deceleration
02 –
A082
Motor Rated Voltage
Selection
200-V class:
200 V/215 V/220 V/230 V/240 V
200
V
400-V class:
380 V/400 V/415 V/440 V/460 V/480 V
400
Related functions d004, A001, A005
Parameter No. Data Description Remarks
A081
00 Always ON
Function enabled during acceleration, constant speed,
and deceleration.
01 Always OFF
Function disabled during acceleration, constant speed,
and deceleration.
02
OFF during
deceleration
Function disabled only during deceleration to increase
motor loss, whereby reducing regenerated energy to
Inverter.
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