Toshiba TOSVERT VF-AS3 User Manual

E6582062
6. [Advanced] How to use parameters 6-74
4
4
6
9
<F349: Dwell operation>
<F350: Acc suspended frequency>
<F351: Acc suspended time>
<F352: Dec suspended frequency>
<F353: Dec suspended time>
■ Function
This function suspends acceleration/deceleration temporarily and let the inverter run in constant
speed according to the brake delay during run/stop for transportation of heavy load. This will prevent
occurrence of overcurrent at startup or slippage when stopping by adjusting the timing with the
brake.
There are two ways to set dwell operation: automatic stop by setting the stop frequency and stop
time and stop by using signals to the input terminal.
■ Parameter setting
■ Setting method
Select whether to automatically suspend acceleration/deceleration by parameter settings or by
signal input to the input terminal. This is set with <F349: Dwell operation>.
• When <F349> is set to "1", you must also set parameters <F350: Acc suspended frequency>
through <F353: Dec suspended time>.
<F350: Acc suspended frequency> must be set to a value over <F240: Start frequency>.
<F352: Dec suspended frequency> must be set to a value over <F243: End frequency>.
When the frequency command value is the same as values set for <F350> and <F352> settings,
dwell operation will not be enabled.
• When <F349> is set to "2", you must also assign function numbers "60", "61" (dwell operation) to
the unused input terminal.
6. 19 Constant speed run with Acc/Dec
suspended (dwell operation)
Title Parameter name Adjustment range Unit Default setting
F349 Dwell operation 0: Disabled
1: F350-F353 setting
2: Terminal input
0
F350 Acc suspended
frequency
0.0 - FH Hz 0.0
F351 Acc suspended time 0.0 - 10.0 s 0.0
F352 Dec suspended
frequency
0.0 - FH Hz 0.0
F353 Dec suspended time 0.0 - 10.0 s 0.0
0: Disabled
1: F350-F353 setting
2: Terminal input
0.0HzSTOP
13:21
F349 : Dwell operation

Toshiba TOSVERT VF-AS3 Specifications

General

Brand	Toshiba
Model	TOSVERT VF-AS3
Category	Inverter
Language	English