Individual Functions
6-121
• E-type isolation: [Line-to-line resistance (Ω) at 75°C of test report] × 0.92 (Ω)
• B-type isolation: [Line-to-line resistance (Ω) at 75°C of test report] × 0.92 (Ω)
• F-type isolation: [Line-to-line resistance (Ω) at 115°C of test report] × 0.87 (Ω)
Motor Leak Inductance Setting
Set the amount of voltage drop due to motor leak inductance in E2-06 using the percentage over the motor
rated voltage. Make this setting when the high-speed motor inductance is small. If the inductance is not writ-
ten on the motor nameplate, consult the motor manufacturer.
Motor Iron Saturation Coefficients 1 and 2 Settings
E2-07 and E2-08 and are set automatically using rotational autotuning.
Motor Mechanical Loss (SPEC: E or Later Only)
E2-09 is displayed only when the flux vector control method is selected. Adjust mechanical loss in the follow-
ing cases. (There is normally no reason to make this adjustment.) The mechanical loss setting is used to com-
pensate the torque.
• There is excessive torque loss from the motor bearings.
• There is excessive torque loss from a fan, pump, etc.
Motor Iron Loss for Torque Compensation Setting
E2-10 is displayed only when in V/f control method. To increase the torque compensation accuracy when in
V/f control method, set the motor iron loss in Watts.
Motor Rated Output
Set the rated output value of the motor indicated on the motor nameplate to E2-11.
This constant is automatically set during autotuning.
îš‹ Setting the V/f Pattern
In V/f control method, you can set the Inverter input voltage and the V/f pattern as the need arises.
îš„Related Constants
Con-
stant
Num-
ber
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor
E1-01
Input volt-
age setting
Set the Inverter input voltage in 1
volt.
This setting is used as a reference
value in protection functions.
155 to
255
*1
200 V
*1
NoQQQQ300H
E1-03
V/f pattern
selection
0 to E: Select from the 15 preset
patterns.
F: Custom user-set patterns
(Applicable for settings E1-
04 to E1-10.)
0 to F F No Q Q No No 302H
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