Toshiba TOSVERT VF-A7 User Manual

E6581172①
5
4.1.1. Description of F330=1 or 6 (user interface) operation
Light-load high-speed operation can be performed by returning the light-load detection signal to the input terminal
as preset-speed data when light-load high-speed operation selection F330=1 or 6 (user interface) is set. However,
in case of user interface, because of frequency during light-load high-speed operation being the input frequency,
high-speed operation will not be stopped even if the directed speed value is set to the switching frequency or less. If
you want to stop high-speed operation with the directed speed value, use the enabled-terminal effective preset-
speed mode (F330=5 or 10).
An example of returning the light-load detection signal to the input terminal S4 (connecting the light-load detection
signal output to the preset-speed command 4) is described as follows:
The following table indicates an example of light-load detection signal being input to the input
terminal S4:
Light-load
detection
S4 S3 S2 S1 Operation frequency command Parameter
0000Panel frequency (in case of FMOD=5) -
0001Preset-speed operation frequency 1 Sr1
0010Preset-speed operation frequency 2 Sr2
0011Preset-speed operation frequency 3 Sr3
0100Preset-speed operation frequency 4 Sr4
0101Preset-speed operation frequency 5 Sr5
0110Preset-speed operation frequency 6 Sr6
OFF
0111Preset-speed operation frequency 7 Sr7
1000
Preset-speed operation frequency 8
(light-load high-speed operation 1)
F287
1001
Preset-speed operation frequency 9
(light-load high-speed operation 2)
F288
1010
Preset-speed operation frequency 10
(light-load high-speed operation 3)
F289
1011
Preset-speed operation frequency 11
(light-load high-speed operation 4)
F290
1100
Preset-speed operation frequency 12
(light-load high-speed operation 5)
F291
1101
Preset-speed operation frequency 13
(light-load high-speed operation 6)
F292
1110
Preset-speed operation frequency 14
(light-load high-speed operation 7)
F293
ON
1111
Preset-speed operation frequency 15
(light-load high-speed operation 8)
F294

Toshiba TOSVERT VF-A7 Specifications

General

Brand	Toshiba
Model	TOSVERT VF-A7
Category	Inverter
Language	English