Omron SYSDRIVE 3G3FV, User Manual, Page: 207 / 400

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•
Type F insulation: Motor’s terminal resistance (
Ω
) at 115
°
C x 0.87
Parameter Display name Setting range Units Default
Valid access levels
number
p y g g
setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
E2-05 Term Resistance 0.000 to 65.000
Ω
9.842 Advanced
Note The default setting depends upon the type of Inverter.
(The table shows the default settings for 200-V class, 0.4-kW Inverters.)
Set the voltage drop (caused by the motor’s leakage inductance) as a percentage of the motor’s rated
voltage in parameter E2-06. Normally this value is not shown on the motor’s nameplate, so it might be
necessary to contact the motor manufacturer. It is also acceptable to set the loss (caused by the motor’s
leakage inductance) as a percentage.
Parameter Display name Setting Units Default Valid access levels
number
p y g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
E2-06 Leak Inductance 0.0 to 30.0 % 18.2 Not applicable. Advanced
Note 1. The default setting depends upon the type of Inverter.
(The table shows the default settings for 200-V class, 0.4-kW Inverters.)
Note 2. The default setting does not normally need to be changed because the Inverter in operation
adjusts the leak inductance automatically. Set the parameter if a high-speed motor or any oth-
er motor with low inductance is used.
Parameters E2-07 and E2-08 are used in a frequency range even higher than the motor’s rated fre-
quency. It isn’t necessary to set these parameters when operating below the motor’s rated frequency.
Set the following values:
Motor core-saturation coefficient 1: Core-saturation coefficient when magnetic flux is 50%.
Motor core-saturation coefficient 2: Core-saturation coefficient when magnetic flux is 75%.
Normally these values aren’t shown on the motor’s nameplate, so it might be necessary to contact the
motor manufacturer.
Parameter Display name Setting Units Default
Valid access levels
number
p y g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
E2-07 Saturation Comp 1 0.0 to 0.50 --- 0.50
Not applicable. Advanced
E2-08 Saturation Comp 2 0.00 to 0.75 --- 0.75
Note It is possible to operate the motor with the default settings, but motor efficiency may decrease.
Parameter E2-09 is used to compensate for torque lost mechanically in the motor. Normally it isn’t nec-
essary to change this setting, but it can be adjusted when there is a large torque loss to the motor’s
bearings or to a fan or pump connected to the motor. This parameter cannot be changed during opera-
tion.
Set the mechanical loss as a percentage of the motor’s rated output power (W).
Parameter Display name Setting Units Default
Valid access levels
number
p y g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
E2-09 Mechanical Loss 0.0 to 10.0 % 0.0 Not applicable. Advanced
Advanced Operation
Chapter 6