Toshiba TOSVERT VF-AS3 User Manual

E6582062
5. [Fundamental operation] How to use parameters 5-36
4
5
9
5. 3. 3 Acceleration/deceleration time adjustment
automatically according to load
<AU1: Automatic Acc/Dec>
■ Function
This is a parameter that automatically adjusts the acceleration/deceleration time according to the
load condition to prevent an overcurrent trip during acceleration/deceleration.
■ Parameter setting
■ Selecting a setting value
1: Automatic Acc/Dec
The acceleration/deceleration time is adjusted automatically in the range in which the output current
does not exceed the rated current of the inverter. The adjustment range is 1/8 to 8 times as long as
the time set with <ACC: Acceleration time 1> and <dEC: Deceleration time 1>. If you set suitable
values for the average load with <ACC: Acceleration 1> and <ｄEC: Deceleration 1> in advance, it
will be easy to deal with load fluctuation.
2: Automatic Acc only
Only the acceleration time is adjusted automatically. The speed is decelerated according to the
setting of <dEC: Deceleration time 1>.
Title Parameter name Adjustment range
Default
setting
AU1 Automatic Acc/Dec 0: Disabled
1: Automatic Acc/Dec
2: Automatic Acc only
1
0.0HzSTOP
15:23
AU1 : Automatic Acc/Dec
0: Disabled
1: Automatic Acc/Dec
2: Automatic Acc only
Basic parameter
Acceleration time
Acceleration/deceleration time -> decrease
Deceleration time
Time (s)
Output frequency (Hz)
0
Small load Large load
Acceleration time
Acceleration/deceleration time -> increase
Deceleration time
Time (s)
Output frequency (Hz)
0
<FH><FH>

Toshiba TOSVERT VF-AS3 Specifications

General

Model	TOSVERT VF-AS3
Category	Inverter
Overload Capacity	150% for 60 seconds
Cooling Method	Forced Air Cooling
Control Method	V/f control, Sensorless vector control
Braking Unit	Built-in
Communication Protocols	Modbus RTU, DeviceNet, Profibus DP
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheat, Ground Fault
Enclosure	IP20
Operating Temperature	-10°C to +50°C
Humidity	5-95% (non-condensing)
Altitude	Up to 1000m