6-33
• 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
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
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
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
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