YASKAWA F7

Programming 53
To set up a custom V/f pattern, program the points shown in the diagram below using parameters E1-04 through E1-13. Be
sure that the following condition is true:
E1-09 ≤ E1-07 ≤ E1-06 ≤ E1-11 ≤ E1-04
Fig.38 Custom V/f Pattern Programming Curve
Increasing the voltage in the V/f pattern increases the available motor torque. However, when setting a custom V/f pattern,
increase the voltage gradually while monitoring the motor current, to prevent:
• Drive faults as a result of motor over-excitation
• Motor overheating or excessive vibration
Table 9 V/f Pattern Default Settings for Drive Capacity 0.4~1.5kW for 240V Class
Parameter
No.
Name Unit Factory Setting
E1-03V/f Pattern Selection — 0 1 2 34567
E1-04 Max Output Frequency Hz 50.0 60.0 60.0 72.0 50.0 50.0 60.0 60.0
E1-05 Max Output Voltage V 240.0 240.0 240.0 240.0 240.0 240.0 240.0 240.0
E1-06 Base Frequency Hz 50.0 60.0 50.0 60.0 50.0 50.0 60.0 60.0
E1-07 Mid Output Frequency A V 2.5 3.0 3.0 3.0 25.0 25.0 30.0 30.0
E1-08 Mid Output Voltage A V 17.2 17.2 17.2 17.2 40.2 57.5 40.2 57.5
E1-09 Min Output Frequency Hz 1.3 1.5 1.5 1.5 1.3 1.3 1.5 1.5
E1-10 Mid Output Voltage V 10.3 10.3 10.3 10.3 9.2 10.3 9.2 10.3
E1-11Mid Output Frequency BHz 0 0 0 00000
E1-12Mid Output Voltage B V 0 0 0 00000
E1-13Base Voltage V 0 0 0 00000
For 480V class units, the value is twice that of 240V class units.
Frequency
E1-09 E1-07
E1-06
E1-04
E1-11
Max Voltage E1-05
Mid Voltage B E1-12
Mid Voltage A E1-08
Base Voltage E1-13
Min Voltage E1-10
Min
Freq
Max
Fre
q
Base
Freq
Mid
Freq
A
Mid
Freq B
Freq A