5.5 E: Motor Parameters
YASKAWA ELECTRIC
SIEP C710616 30B YASKAWA AC Drive T1000A Technical Manual
165
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Figure 5.44
Figure 5.44 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.
u
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 1 and 2). If Auto-Tuning cannot be performed, then refer
to
Auto-Tuning Fault Detection on page 298
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).
n
E2-01: Motor Rated Current
Set E2-01 to the full load amps (FLA) stamped on the motor nameplate. This value is used for motor protection and to
calculate torque limits. If Auto-Tuning completes successfully, the value entered to T1-04 will automatically be saved to
E2-01.
Note: 1.
This value's number of decimal places depends on the drive model and the Heavy/Normal duty selection in parameter C6-01. The
value will have two decimal places (0.01 A) if the drive is set for a Maximum Applicable Motor Capacity up to 11 kW (refer to
) and one decimal place (0.1 A) if the set Maximum Applicable Motor Capacity is higher than 11 kW.
2.
If the motor rated current in E2-01 is set lower 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.
n
E2-02: Motor Rated Slip
Sets the motor rated slip in Hz. The setting in E2-02 is used for motor protection and to calculate torque limits. This value
is automatically set during Auto-Tuning (Rotational Auto-Tuning, Stationary Auto-Tuning 1 and 2).
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 (r/min), p: number of motor poles)
<1> When using PM motors, the setting range is determined by the motor code set to E5-01.
<2> Default setting is determined by the control mode.
<3> When using PM motors, the default setting is determined by the motor code set to E5-01.
<4> Values shown here are for 200 V class drives. Double values when using a 400 V class unit.
<5> The drive changes these settings when Auto-Tuning is performed (Rotational Auto-Tuning, Stationary Auto-Tuning 1, 2).
<6> Parameter ignored when E1-11 and E1-12 are set to 0.0.
<7> When Auto-Tuning is performed, E1-05 and E1-13 will be set to the same value.
No.
Parameter Name
Setting Range
Default
E2-01
Motor Rated Current
10% to 200% of the drive rated current.
Determined by C6-01 ando2-04
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)
