Senlan Hope800 Series Manual page 75

Increasing this parameter can suppress the motor vibration under the no-load or light-load condition.
F2-10
Setting
0: Inactive
range
AVR is automatic voltage regulation. It keeps the output voltage unaffected when the input voltage or
DC link voltage alters, thus stabilizing the production process and product quality.
When the input voltage is higher than the rating, the AVR function should be enabled so that the motor
would not run under an overhigh voltage.
Setting F2-10 to 2 allows a quicker deceleration and generates a higher current compared with setting it
to 1, because deceleration would raise the DC link voltage and then the output voltage if AVR is inactive,
which leads to a greater motor loss and less mechanical energy feedback, therefore the deceleration time
can be shorter.
Caution: If the load has a very large moment of inertia, F2-10 should be set to 1 to prevent the overhigh
voltage causing motor overheating during deceleration.
F2-11
Setting
0: Inactive
range
This function automatically regulates the output voltage, ensuring a minimum load current when the
motor speed remains unchanged, thus reducing the motor loss. It's particularly suitable for
reduced-torque loads such as fans and pumps. Refer to the diagram below.
 Auto energy-saving operation is only valid for V/F control and only applicable to applications with a
stable load.
 In the auto energy-saving operation under V/F control, the functions of auto torque boost and slip
compensation need to be used together.
F2-12
Setting
1.00~650.00Hz
range
F2-13 Max. output voltage
Setting 150~500V, default 380V
range
F2-14 V/F frequency F4
Setting
F2-16~F2-12
range
F2-15
AVR
1: Active
Auto energy-saving operation
Current
Small
load
0
Working point at
lowest current
Base frequency
V/F voltage V4
Default
2: Active except during decel
Default
1: Active
Large
load
Working point at
lowest current
Default 50.00Hz
380V
Default
Default 0.00Hz
V/F voltage
F2-15
V4
6 Parameter Description
1 Change
0 Change
Output
voltage
Change
Change
Change
F2-15 voltage
×
○
×
×
×
V/F
V4
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