YASKAWA CIMR-MC5A20P4 Instruction Manual page 152

Advanced Operation
7.2.2 Setting/Adjusting Motor Constants
7
The default setting depends upon the Inverter capacity.
D
(The table shows the default settings for 200 V class, 0.4 kW Inverters.) (See page NO TAG.)
Set the no-load current (E2-03) at the rated voltage and rated frequency. Normally this value isn't
D
shown on the motor nameplate, so it might be necessary to contact the motor manufacturer.
Number of Motor Poles: E2-04
User User
Constant
Name
Number
E2-04
Number of motor poles
Set the number of poles (E2-04) shown on the motor nameplate.
D
Motor Line-to-line Resistance: E2-05
User User
Constant
Name
Number
Motor line-to-line resist-
E2-05
ance
The default setting depends upon the Inverter capacity.
D
(The table shows the default settings for 200 V class, 0.4 kW Inverters.) (See page NO TAG.)
Set the motor terminal resistance (U- -V, V- -W, and W- -U) in constant E2-05.
D
Normally this value isn't shown on the motor nameplate, so it might be necessary to contact the motor
D
manufacturer for the terminal resistance at the insulation class temperature. Use the following equa-
tions to calculate the resistance value from the terminal resistance of a test report.
E-class insulation: Terminal resistance at 75 C in the test report ( ) x 0.92
B-class insulation: Terminal resistance at 75 C in the test report ( ) x 0.92
F-class insulation: Terminal resistance at 115 C in the test report ( ) x 0.87
Motor Leak Inductance: E2-06
User User
Constant
Name
Number
E2-06
Motor leak inductance
The default setting depends upon the Inverter capacity.
D
(The table shows the default settings for 200 V class, 0.4 kW Inverters.) (See page NO TAG.)
Set the voltage drop (caused by the motor's leakage inductance) as a percentage of the motor's rated
D
voltage in constant E2-06.
This constant does not normally require setting because the Inverter automatically compensates during
D
operation.
Normally this value isn't shown on the motor nameplate, so it might be necessary to contact the motor
D
manufacturer. It is also acceptable to set the loss (caused by the motor's leakage inductance) as a per-
centage.
Change
during during Setting Setting
Unit
Range
Opera-
tion
2 to 48 - -
Change
Setting Setting
during during
Unit
Range
Opera-
tion
0.000 to
65.000
Change
Setting Setting
during during
Unit
Range
Opera-
tion
0.0 to 30.0 %
- 14
Valid Access Levels
Factory Factory
Open Loop
Setting
Flux Vector
Vector
Q
4
Valid Access Levels
Factory Factory
Open Loop
Setting
Flux Vector
Vector
9.842 A A
Valid Access Levels
Factory Factory
Open Loop
Setting
Flux Vector
Vector
A A
18.2