Toshiba VF-S9 manual Preset-speed operation speeds in 15 steps, Inverter over load characteristics

E6580757

2) Inverter over load characteristics

Set to protect the inverter unit. Cannot be changed or turned off by parameter setting.

If the inverter overload trip function ( ) is activated frequently, this can be improved by adjusting the

stall operation level downward or increasing the acceleration time or deceleration time .

Inverter overload

Time [s]

100%: inverter rated output current

		Output current [%]
5		* To protect the inverter, overload trip may activate in a short period of time when output
		current reaches 150% or higher.
		Inverter overload protection characteristics
	5.15 Preset-speed operation (speeds in 15 steps)
	∼	: Preset-speed operation frequencies 1~7
~		: Same as Sr1 ~ Sr7
	∼	: Preset-speed operation frequencies 8~15

• Function

A maximum of 15 speed steps can be selected just by switching an external contact signal. Multi-speed

frequencies can be programmed anywhere from the lower limit frequency to the upper limit frequency

.

[Setting method]

1)Run/stop

The starting and stopping control is done from the terminal board.

Title	Function	Adjustment range	Setting
	Command mode selection	0: Terminal board	1
		1: Operation panel

Note:If speed commands (analog signal or digital input) are switched in line with preset-speed operations, select

the terminal board using the frequency setting mode selection . ⇒ See 3) or 5.5

E-22