Toshiba TOSVERT VF-S11 User Manual

E6581158
F-45
6
• When the torque current is above the specified dead zone torque current, the frequency is reduced
(during operation) or increased (during DC braking).
• The drooping function is activated above the torque current set with H.
• The amount of drooping varies depending on the amount of torque current.
The difference of the frequency after drooping can be calculated as follows.
Drooping speed
Drooping speed = Base frequency XN
Note
xHx (Torque current-H)
Note: If the base frequency exceeds 100Hz, count it as 100Hz.
Control is exercised between the starting frequency (H) and the maximum frequency
(HJ).
6.15 Braking setting functions
H : Braking mode selection
H
: Release frequency
H
: Release time
H
: Creeping frequency
H
: Creeping time
6.16 Conducting PID control
H : PID control wait time
H
: PID control
H
: Proportional gain
H
: Integral gain
H
: Differential (D) gain
• Function
Using feedback signals (4 to 20mA, 0 to 10V) from a detector, process control can be exercised, for
example, to keep the airflow, amount of flow or pressure constant.

Toshiba TOSVERT VF-S11 Specifications

General

Model	TOSVERT VF-S11
Category	Inverter
Output Frequency	0.1-400Hz
Frequency Range	0.1-400Hz
Control Method	V/f Control, Sensorless Vector Control
Power Rating	0.2kW to 15kW
Cooling Method	Forced air cooling
Overload Capacity	150% for 60 seconds
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Communication	Modbus RTU
Input Voltage	200-240V, 380-480V
Braking Unit	Built-in (optional external braking resistor)