60
8-15
AVR function options
Factory setting
d 1
Setting range
d 0
AVR function available
d 1
AVR function unavailable
d 2
AVR function cancelled during deceleration
Motor rating generally consists of AC 220V/220V and 60Hz/50Hz; input voltage of AC motor
ranges from AC 180V to 264V, 50Hz/60Hz; Thus, for AC motor drive without function of
auto-voltage stabilizing, if input power supply of AC motor drive is AC 250V, a same voltage shall
be output to motor, and motor shall then run in over voltage power supply, which will cause an
increased temperature rise to motor. This shall also be unfavorable to insulation and torque output,
thus, duration of motor shall be decreased sharply as a result.
Auto-voltage stabilizing function of AC motor drive shall stabilize automatically output power supply
to rated voltage of motor when input power supply exceeds rated voltage of the motor. For example,
if V/F curve is set to AC 220V/50Hz and input power supply is in a range of AC200 to 264V, voltage
output to motor shall be stabilizing automatically to AC 220V/50Hz, not exceeding the set voltage.
If input power supply varies from AC 180 to 200V, voltage output to motor shall be proportional to
input power supply.
It has been discovered that in deceleration to stop, time of deceleration shall be decreased when
AVR function is closed. In addition with fine function of auto acceleration and deceleration, the
accel/decel of motor shall be much more speeded.
8-16~
8-18
Reserved
8-19
Automatic energy saving
Factory setting
d 0
Setting range
d 0
1: no processing
d 1
2: energy saving
when the inverter operates in energy saving mode, full voltage operate it in acceleration and
deceleration time. In the constant speed rotating mode, the load power will calculated
automatically to supply the load with best voltage value. This function is not suitable for load
variation frequency or the load which has approached to the full load rated load in operation.
输出电压
output voltage
最大可降低
30% can decrease by 30% at most
正常的输出电源
normal output power supply
频率
frequency
自动节能运转
automatic energy-saving operation
