54 VG5 Installation & Quick-Start Manual
Custom V/f Pattern
Set up a custom V/f pattern by setting parameter E1-03 to “F”, and then setting the values in parame-
ters E1-04 to E1-10.
* For 460V class units, the value is twice that of 230V class units. For 575V class units the value is 2.5 times the 230V value.
Increasing the voltage in the V/f pattern increases motor torque. However, when setting a custom
V/f pattern, increase the voltage gradually while monitoring the motor current, to prevent:
·Inverter fault trips as a result of motor overexcitation
·Motor overheat or excessive vibration
V/f
Control
V/f
w/ PG
Open Loop
Vector
Flux
Vector
E1-04Maximum Frequency Max Frequency
√ √ √ √
E1-05Maximum Voltage Max Voltage
√ √ √ √
E1-06Maximum Voltage Output Frequency Base Frequency
√ √ √ √
E1-07Middle Output Frequency Mid Frequency A
√ √ − −
E1-08Middle Output Voltage Mid Voltage A
√ √ − −
E1-09Minimum Output Frequency Min Frequency
√ √ √ −
E1-10Minimum Output Voltage Min Voltage
√ √ − −
E1-13Motor Base Voltage Base Voltage
− − √ √
Parameter
No.
Name Unit Setting Range
Factory
Default
E1-04 Maximum output frequency 0.1 Hz 50.0 to 400 Hz 60.0 Hz
E1-05 Maximum voltage 0.1 V 0.1 to 255 V * 230 V *
E1-06 Maximum voltage output frequency
(base frequency)
0.1 Hz 0.2 to 400 Hz 60.0 Hz
E1-07 Mid. output frequency 0.1 Hz 0.1 to 399 Hz 3.0 Hz
E1-08 Mid. output frequency voltage 0.1 V 0.1 to 255 V * 17.2 V *
E1-09 Minimum output frequency 0.1 Hz 0.1 to 10.0 Hz 1.5 Hz
E1-10 Minimum output frequency voltage 0.1 V 0.1 to 50.0 V * 10.3 V *
Be sure to satisfy the following conditions
for setting parameters E1-04 to E1-10:
E1-09 ≤ E1-07 < E1-06 ≤ E1-04
0
E1-09
E1-07E1-06
E1-04
Frequency
Voltage
E1-10
E1-08
E1-05
Figure 23 Custom V/f Pattern Setting
Chapter 3 - Quick-Start Programming
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