12.6 E: Motor Parameters
590 YASKAWA SIEPC71061753C GA500 Technical Manual
■ E1-21: No-Load Voltage Adjustment
No.
(Hex.)
Name Description
Default
(Range)
E1-21
(1568)
No-Load Voltage
Adjustment
Sets the type of Auto-Tuning. Considers T1-13[PM Motor Rated Voltage] FLA)] to be 100%.
90.0%
(0.0 - 100.0%)
◆ E2: Motor Parameters
E2 parameters [Motor Parameters] are used to set induction motor data. To switch drive operation from one
motor to another motor, configure the first motor (motor 1).
If Auto-Tuning cannot be performed, set the E2 parameters manually. Performing Auto-Tuning automatically sets
the E2 parameters to the optimal values.
Note:
If A1-02 [Control Method Selection] is set to the following control modes, the keypad does not display E2-xx.
• 5 [PM Open Loop Vector]
• 6 [PM Advanced Open Loop Vector]
• 8 [EZ Vector Control]
■ E2-01: Motor Rated Current (FLA)
No.
(Hex.)
Name Description
Default
(Range)
E2-01
(030E)
Motor Rated Current (FLA)
Sets the motor rated current in amps.
Determined by o2-04, C6-
01
(10% to 200% of the drive
rated current)
Note:
• If E2-01 < E2-03 [Motor No-Load Current], the drive will detect oPE02 [Parameter Range Setting Error].
• When the drive model changes, the display units for this parameter also change.
–0.01 A: B001 to B018, 2001 to 2042, 4001 to 4023
–0.1 A: 2056 to 2082, 4031 to 4060
The value set for E2-01 becomes the reference value for motor protection and the torque limit. Enter the motor
rated current written on the motor nameplate. Auto-Tuning the drive will automatically set E2-01 to the value
input for T1-04 [Motor Rated Current].
■ E2-02: Motor Rated Slip
No.
(Hex.)
Name Description
Default
(Range)
E2-02
(030F)
Motor Rated Slip
Sets motor rated slip.
Determined by o2-04, C6-
01
(0.000 - 20.000 Hz)
This parameter value becomes the base slip compensation value. The drive automatically sets this parameter
during Auto-Tuning. When you cannot do Auto-Tuning, calculate the motor rated slip with the information on the
motor nameplate and this formula:
E2-02 = f - (n × p) / 120
• f: Motor rated frequency (Hz)
• n: Rated motor speed (min
-1
(r/min))
• p: Number of motor poles
■ E2-03: Motor No-Load Current
No.
(Hex.)
Name Description
Default
(Range)
E2-03
(0310)
Motor No-Load Current
Sets the no-load current for the motor in amps when operating at the rated frequency and the no-
load voltage.
Determined by o2-04, C6-
01
(0 to E2-01)
Note:
When the drive model changes, the display units for this parameter also change.
• 0.01 A: B001 - B018, 2001 - 2042, 4001 - 4023
• 0.1 A: 2056 - 2082, 4031 - 4060
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