YASKAWA U1000 Series - E2: Motor 1 Parameters

5.5 E: Motor Parameters
248 YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
Figure 5. 53
Figure 5.53 V/f Pattern
Note: 1. The following condition must be true when setting up the V/f pattern: E1-09 ≤ E1-07 < E1-06 ≤ E1-11 ≤ E1-04
2. To make the V/f pattern a straight line below E1-06, set E1-09 = E1-07. In this case the E1-08 setting is disregarded.
3. E1-03 is unaffected when the parameters are initialized using parameter A1-03, but the settings for E1-04 through E1-13 are returned
to their default values.
4. Parameters E1-11, E1-12, and E1-13 should only be used to fine-tune the V/f pattern in the constant output range. These parameters
rarely need to be changed.
◆ E2: Motor 1 Parameters
These parameters contain the motor data needed for motor 1. They are set automatically when Auto-Tuning is performed
(this includes Rotational Auto-Tuning, Stationary Auto-Tuning 2 and 3, and Rotational Auto-Tuning for V/f Control). If
Auto-Tuning cannot be performed, refer to Auto-Tuning Fault Detection on page 376 for detail.
Note: As the motor parameters for a PM motor are set up in the E5- parameters, parameters for induction motors (E2-) are
hidden when a PM motor control mode is selected for motor 1 (i.e., parameter A1-02 is set to 5, 6, or 7).
■ E2-01: Motor Rated Current
Provides motor control, protects the motor, and calculates torque limits. Set E2-01 to the full load amps (FLA) stamped
on the motor nameplate. If Auto-Tuning completes successfully, the value entered to T1-04 will automatically be saved
to E2-01.
Note: 1. Display is in the following units.
 CIMR-U20028, 20042, and 40011 to 40027: 0.01 A units
 CIMR-U20054 to 20248, and 40034 to 40930: 0.1 A units
2. If the motor rated current in E2-01 is set equal to or less than the motor no-load current in E2-03, than a parameter setting error will
occur (oPE02). E2-03 must be set correctly to prevent this error.
■ E2-02: Motor Rated Slip
Sets the motor rated slip in Hz to provide motor control, protect the motor and calculate torque limits. This value is
automatically set during Auto-Tuning (Rotational Auto-Tuning, Stationary Auto-Tuning 2 and 3).
If Auto-Tuning cannot be performed, calculate the motor rated slip using the information written on the motor nameplate
and the formula below:
E2-02 = f − (n × p)/120
(f: rated frequency (Hz), n: rated motor speed (min
-1
), p: number of motor poles)
No. Parameter Name Setting Range Default
E2-01 Motor Rated Current 10% to 150% of the drive rated current.
Determined by
C6-01 and o2-04
No. Parameter Name Setting Range Default
E2-02 Motor Rated Slip 0.00 to 20.00 Hz
Determined by C6-01 and
o2-04
Output Voltage (V)
Frequency (Hz)
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