E4: Motor 2 Parameters - YASKAWA A1000 Series Technical Manual

5.5 E: Motor Parameters
Figure 5.54
Note: 1. The following conditions must be true when setting up the V/f pattern: E3-09 ≤ E3-07 < E3-06 ≤ E3-11 ≤ E3-04
2. To make the V/f pattern a straight line at a frequency lower than E3-07, set E3-09 = E3-07. With this setting, E3-08 is disregarded.
3. Parameters E3-04 through E3-13 are reset to their default values when the drive is initialized.
4. E3-11, E3-12, and E3-13 rarely need to be changed, and should only be used to fine-tune the V/f pattern in the constant output range.

◆ E4: Motor 2 Parameters

E4 parameters contain the motor data for motor 2. These parameters are usually set automatically during the Auto-
Tuning process for vector control modes (Rotational Auto-Tuning, Stationary Auto-Tuning 1 and 2). They may need to
be set manually if there is a problem performing Auto-Tuning.
Note: As the function for switching between two motors cannot be used with a PM motor, the E5-
a PM motor control mode is selected (A1-02 = 5, 6, or 7).
■ E4-01: Motor 2 Rated Current
Set E4-01 to the full load amps (FLA) stamped on the nameplate of motor 2. 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 E4-01.
No.
E4-01
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
Table A.2 and Table
2. If the motor rated current in E4-01 is set lower than the motor no-load current in E4-03, then a parameter setting error will occur
(oPE02). E4-03 must be set correctly to prevent this error.
E4-02: Motor 2 Rated Slip
■
This parameter sets the motor 2 rated slip frequency. Slip compensation is based on this value. The drive calculates this
value automatically during Auto-Tuning (Rotational Auto-Tuning and Stationary Auto-Tuning 1, 2).
For information on calculating the motor rated slip, refer to
No.
E4-02
E4-03: Motor 2 Rated No-Load Current
■
Set the no-load current for motor 2 in amperes when operating at the rated frequency and the no-load voltage. The drive
sets E2-03 during the Auto-Tuning process (Rotational Auto-Tuning and Stationary Auto-Tuning 1, 2). The motor no-
load current listed in the motor test report can also be entered to E2-03 manually. Contact the motor manufacturer to
receive a copy of the motor test report.
No.
E4-03
Note: 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 Table A.2 and Table
202
Output (V)
E3-05
E3-12
E3-13
E3-08
E3-10
E3-09
Figure 5.54 V/f Pattern for Motor 2
Parameter Name
Motor 2 Rated Current
A.3) and one decimal place (0.1 A) if the set Maximum Applicable Motor Capacity is higher than 11 kW
Parameter Name
Motor 2 Rated Slip
Parameter Name
Motor 2 Rated No-Load Current
A.3) and one decimal place (0.1 A) if the set Maximum Applicable Motor Capacity is higher than 11 kW.
common_TMonly
E3-06 E3-11 E3-04
E3-07
Frequency (Hz)
10 to 200% of the drive rated current.
E2-02: Motor Rated Slip on page
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
parameters will be hidden when
Setting Range
Determined by C6-01 and
198.
Setting Range
Determined by C6-01 and
0.00 to 20.00 Hz
Setting Range
Determined by C6-01 and
0 to [E4-01]
Default
o2-04
Default
o2-04
Default
o2-04