YASKAWA A1000 Technical Manual page 103

n V/f Pattern Settings E1-04 to E1-13
If E1-03 is set to a preset V/f pattern (i.e., a value other than F), the user can monitor the V/f pattern in parameters E1-04
through E1-13. To create a new V/f pattern, set E1-03 to F.
pattern.
Note: Certain E1-oo parameters might not be visible depending on the control mode.
No.
E1-04
E1-05
E1-06
E1-07
E1-08
E1-09
E1-10
E1-11
E1-12
E1-13
<1> Default setting is determined by the control mode.
<2> When using PM motors, the default setting is determined by the motor code set to E5-01.
<3> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives.
<4> The drive changes these settings when Auto-Tuning is performed (Rotational Auto-Tuning, Stationary Auto-Tuning 1, 2).
<5> Parameter ignored when E1-11 and E1-12 are set to 0.0.
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 equal to E1-07. In this case the E1-08 setting is disregarded.
3. E1-03 is unaffected when the drive is initialized, but E1-04 through E1-13 return to their default values.
4. Only use E1-11, E1-12, and E1-13 to fine-tune the V/f pattern in the constant output range. These parameters rarely need to be changed.
n 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.
No.
E2-01
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.
2. An oPE02 error will occur if the motor rated current in E2-01 is set lower than the motor no-load current in E2-03. Set E2-03 correctly to
prevent this error.
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Parameter Name
Maximum Output Frequency
Maximum Voltage
Base Frequency
Middle Output Frequency
Middle Output Frequency Voltage
Minimum Output Frequency
Minimum Output Frequency Voltage
Middle Output Frequency 2
Middle Output Frequency Voltage 2
Base Voltage
Output Voltage (V)
E1-05
E1-12
E1-13
E1-08
E1-10
E1-09
Figure 4.21 V/f Pattern
Parameter Name
Motor Rated Current
4.6 Basic Drive Setup Adjustments
Refer to V/f Pattern on page 103
Refer to Parameter List on page 175
Setting Range
40.0 to 400.0 Hz
0.0 to 255.0 V
0.0 to [E1-04]
0.0 to [E1-04]
0.0 to 255.0 V
0.0 to [E1-04]
0.0 to 255.0 V
0.0 to [E1-04]
0.0 to 255.0 V
0.0 to 255.0 V
E1-07 E1-06 E1-11 E1-04
Frequency (Hz)
Setting Range
10% to 200% of the drive
rated current
Refer to Power Ratings on page
for an example custom V/f
for details.
Default
<1> <2>
<3> <1>
<1> <2>
<1>
<3> <1>
<1> <2>
<3> <1>
<5>
0.0 Hz
<3> <4> <5>
0.0 V
<3> <4>
0.0 V
Default
Determined by
C6-01 and o2-04
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