Output (V)
Frequency (Hz)
E3-05
E3-12
E3-13
E3-08
E3-10
E3-09
E3-07
E3-06
E3-11
E3-04
Figure 5.53 V/f Pattern for Motor 2
Note: 1. The following conditions must be true when setting up the V/f pattern: E3-09 ≤ E3-07 < E3-06 ≤ Ε3-11 ≤ E3-04
2. To make the V/f pattern a straight line at a frequency lower than E3-07, set E3-09 equal to E3-07. In this case the E3-08 setting is disregarded.
3. Parameters E3-04 through E3-13 are reset to their default values when the drive is initialized.
4. Only use E3-11, E3-12, and E3-13 to fine-tune the V/f pattern in the constant output range. These parameters rarely need to be changed.
u
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). It may be necessary to set these
parameters manually if there is a problem performing Auto-Tuning.
Note:
The function for switching between two motors cannot be used with a PM motor. E4-oo parameters are hidden when a PM motor control
mode is selected (A1-02 = 5, 6, or 7).
n
E4-01: Motor 2 Rated Current
Protects the motor and calculates torque limits. Set E4-01 to the full load amps (FLA) stamped on the nameplate of motor 2.
If Auto-Tuning completes successfully, the value entered to T1-04 will automatically be saved to E4-01.
No. Parameter Name Setting Range Default
E4-01 Motor 2 Rated Current
10 to 200% of the drive rated
current.
Determined by
C6-01 and o2-04
Note: 1. The number of decimal places in the parameter value depends on the drive model and the ND/HD selection in parameter C6-01. This value
has two decimal places (0.01 A) if the drive is set for a maximum applicable motor capacity up to and including 11 kW, and one decimal
place (0.1 A) if the maximum applicable motor capacity is higher than 11 kW. Refer to Power Ratings on page 373.
2. An oPE02 error will occur if the motor rated current in E4-01 is set lower than the motor no-load current in E4-03. Set E4-03 correctly to
prevent this error.
n
E4-02: Motor 2 Rated Slip
Sets the motor 2 rated slip frequency and is the basis for slip compensation value. The drive calculates this value automatically
during Auto-Tuning (Rotational Auto-Tuning and Stationary Auto-Tuning 1, 2).
Refer to E2-02: Motor Rated Slip on page 187 for information on calculating the motor rated slip.
No. Parameter Name Setting Range Default
E4-02 Motor 2 Rated Slip 0.00 to 20.00 Hz
Determined by
C6-01 and o2-04
n
E4-03: Motor 2 Rated No-Load Current
Sets 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 for a copy of the motor
test report.
No. Parameter Name Setting Range Default
E4-03 Motor 2 Rated No-Load Current 0 to [E4-01]
Determined by
C6-01 and o2-04
Note: The number of decimal places in the parameter value depends on the drive model and the ND/HD selection in parameter C6-01. This value
has two decimal places (0.01 A) if the drive is set for a maximum applicable motor capacity up to and including 11 kW, and one decimal place
(0.1 A) if the maximum applicable motor capacity is higher than 11 kW. Refer to Power Ratings on page 373.
5.5 E: Motor Parameters
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
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Parameter Details
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