Toshiba Tosvert VF-S15 User Manual

E6582175
F-25
6
6.4 Manual torque boost - increasing torque boost at low
speeds
vb : Torque boost value 1
 Function
If torque is inadequate at low speeds, increase torque by raising the torque boost rate with this
parameter.
Output voltage
[V]/(%)
Base frequency voltage
Output frequency (Hz)

Base frequency


[Parameter setting]
Title Function Adjustment range Default setting

Torque boost value 1 0.0 - 30.0 (%)
According to model
(Refer to section 11.4)
● Valid when  is set to 0 (V/F constant), 1 (Variable torque), or 7 (V/F 5-point setting).
Note 1: The optimum value is programmed for each inverter capacity by default setting. Be careful not to increase
the torque boost rate too much because it could cause an overcurrent trip at startup.

Toshiba Tosvert VF-S15 Specifications

General

Category	Inverter
Control Method	V/f control, Sensorless vector control
Cooling Method	Forced air cooling
Model	Tosvert VF-S15
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat
Communication Options	Modbus RTU
Overload Capacity	150% for 1 minute
Braking Unit	Built-in braking transistor
Output Voltage	3-Phase, same as input voltage
Operating Temperature	-10 to +50°C (14 to 122°F)
Storage Temperature	-20 to 65°C (-4 to 149°F)
Humidity	5 to 95% RH (non-condensing)
Altitude	Up to 1000m above sea level
Input Voltage	3-Phase 200 to 240 VAC, 3-Phase 380 to 480 VAC
Weight	Varies depending on model (e.g., 0.8 kg to 16 kg)