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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
• If the moment of inertia of a load machine is large, use this function to delay the acceleration of the
motor until the amount of motor slip during startup becomes small.
This function is useful if the inverter cannot start the motor or detects an overcurrent during startup.
• It works for all acceleration patterns at any time, independent of the Acceleration Pattern Selection
(A097) setting.
Use this function to control the flow rate, air volume, pressure, and other processes.
Acceleration Stop Function
Parameter No. Function name Data Default data Unit
A069
Acceleration Stop
Frequency
0.00 to 99.99
100.0 to 400.0
0.00 Hz
A070 Acceleration Stop Time 0.0 to 60.0 0.0 s
PID Function
Parameter No. Function name Data Default data Unit
A071 PID Selection
00: Disabled
01: Enabled (Reverse output disabled)
02: Enabled (Reverse output enabled)
00 –
A072 PID P Gain 0.2 to 5.0 1.0 –
A073 PID I Gain
0.0 to 999.9
1000. to 3600.
1.0 s
A074 PID D Gain
0.00 to 99.99
100.0
0.00 s
A075 PID Scale 0.01 to 99.99 1.00 time
A076 PID Feedback Selection
00: FI (Current)
01: FV (Voltage)
02: Modbus communication
03: Pulse train frequency
10: Operation function output
00 –
A077
PID Deviation Reverse
Output
00: Disabled
01: Enabled
00 –
A078 PID Variable Range Limit
0.0: Disabled
0.1 to 100.0
0.0 %
A079
PID Feedforward
Selection
00: Disabled
01: FV (Voltage)
02: FI (Current)
03: FE (Voltage)
00 –
Output
frequency
A069
A070
Frequency
reference
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