YASKAWA AC Drive GA700 High Performance Type Technical Manual
No.
(Hex.)
Name
Description
Default
(Range)
E1-03
(0302)
V/f Pattern Selection
Sets the V/f pattern for the drive and motor. You can use one of the preset patterns or you can make a custom pattern.
F
(Determined by A1-02)
When A1-02 = 2 [Control Method Selection = OLV], settings 0 to E are not available.
Set the correct V/f pattern for the application and operation area. An incorrect V/f pattern can decrease motor torque and increase current from overexcitation.
Parameter A1-03 [Initialize Parameters] will not reset the value of E1-03.
Use this constant torque pattern for general applications. This pattern is used when the load torque is constant without any rotation speed such as that used for linear conveyor systems.
The voltage values in the figures are for 200 V class drives. Multiply the values by 2 for 400 V class drives.
HD: B001 - B018, 2001 - 2021, 4001 - 4012
ND: B001 - B012, 2001 - 2018, 4001 - 4009
HD: 2030 - 2082, 4018 - 4060
ND: 2021 - 2082, 4012 - 4060
Use this derated torque pattern for torque loads proportional to three times the rotation speed. For example, fans and pumps.
Use this derated torque pattern for torque loads proportional to two times the rotation speed. For example, fans and pumps.
Use this pattern when moderate torque is necessary during start up.
Select this pattern only in these conditions:
The wiring distance between the drive and motor is 150 m (492.1 ft) minimum
There is an AC reactor connected to the drive output.
Use this pattern when high torque is necessary during start up.
HD: 2030 - 2211, 4018 - 4103
ND: 2021 - 2169, 4012 - 4089
Use this constant output pattern to rotate motors at more than 60 Hz. Output voltage is constant when you operate at more than 60 Hz.
Set E1-04 to E1-13 [V/f Pattern for Motor 1] to set the values for this custom pattern.
The default settings are the same as Setting Value 1 [Const Trq, 60Hz base, 60Hz max].