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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
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)
SIEP_C710636_02B_1_0.book 248 ページ 2015年11月25日 水曜日 午後4時56分