Toshiba Tosvert VF-S15 User Manual

E6582175
F-85
6
f363 (I-gain adjustment parameter)
This parameter adjusts the integral gain level during PID control. Any remaining deviations (residual
deviation offset) during proportional action are cleared to zero.
A larger I-gain adjustment value reduces residual deviations. Too large an adjustment value, however,
results in an unstable event such as hunting.
● Assign function number 52 (PID integral/derivative clear) to an input terminal. It is possible to calculate
integral/derivative amounts always as 0 (zero) while the input terminal is ON.
f366 (D-gain adjustment parameter)
This parameter adjusts the differential gain level during PID control. This gain increases the speed of
response to a rapid change in deviation (difference between the PID set value and the feedback value).
Note that setting the gain beyond necessity may cause fluctuations in output frequency, and thus
operation to become unstable.
● Assign function number 52 (PID integral/derivative clear) to an input terminal, and it is possible to
calculate integral/derivative amounts always as 0 (zero) while the input terminal is ON,.
(f363=
Large gain)
( f363 =
Small gain)
PID set value
Feedback value
Residual deviation
Time
High differential gain
Low differential gain
Previous deviation-current deviation
Feedback value
Time

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)