Omron RX Series - V;F Control Settings; Control Method (V;F Characteristics)

5 Basic Settings
5 - 8
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
5-2 V/f Control Settings
• V/f control is the control mode used for the conventional general-purpose inverter and can be used
easily.
• You can set the following V/f (output voltage/output frequency) characteristics.
5-2-1 Control Method (V/f Characteristics)
Parameter No. Function name Data
Default
data
Unit
A044
1st Control
Method
Heavy
load
(CT)
00: Constant torque characteristics (VC)
01: Reduced torque characteristics (VP
1.7th power (VC at low speed))
02: Free V/f setting
03: Sensorless vector control (SLV)
*1
04: 0-Hz sensorless vector control
*1
05: Sensor vector control (V2)
*2
*1.Refer to 6-2 Sensorless Vector Control on page 6-4 .
*2.Refer to 6-3 Sensor Vector Control on page 6-15.
00
–
Light
load
(VT)
00: Constant torque characteristics (VC)
01: Reduced torque characteristics (VP
1.7th power (VC at low speed))
02: Free V/f setting
03: Sensorless vector control (SLV)
00
A244
2nd Control
Method
*3
*3.To enable the switching to the 2nd/3rd control, allocate one of the Multi-function Input S1 to S8 Selection (C001
to C008) to 08 (SET) or 17 (SET3) and turn ON that terminal.
Heavy
load
(CT)
00: Constant torque characteristics (VC)
01: Reduced torque characteristics (VP
1.7th power (VC at low speed))
02: Free V/f setting
03: Sensorless vector control (SLV)
*1
04: 0-Hz sensorless vector control
*1
00
Light
load
(VT)
00: Constant torque characteristics (VC)
01: Reduced torque characteristics (VP
1.7th power (VC at low speed))
02: Free V/f setting
03: Sensorless vector control (SLV)
00
A344
3rd Control
Method
*3
00: Constant torque characteristics (VC)
01: Reduced torque characteristics (VP 1.7th power
(VC at low speed))