Manual Torque Boost-Increasing Torque Boost At Low Speeds; Base Frequency - Toshiba TOSVERT VF-AS1 Instruction Manual

5.7 Manual torque boost–increasing torque boost at low speeds
: Manual torque boost 1
• Function
If torque is inadequate at low speeds, increase torque by raising the torque boost rate with this parameter.
Base frequency voltage 1
[V]/[%]
[Parameter setting]
Title
Manual torque boost 1
This parameter is valid when
setting).
Note: The optimum value is programmed for each inverter capacity. Be careful not to increase the torque boost rate
too much because it could cause an overcurrent trip at startup. If you are going to change the set values, keep
them within ±2% of the standard default values.
5.8

Base frequency

: Base frequency 1
: Base frequency voltage 1
• Function
Sets the base frequency and the base frequency voltage in conformance with load specifications or the motor's
rated frequency.
Note: This is an important parameter that determines the constant torque control area.
Base frequency voltage 1
[Parameter setting]
Title Function
Base
frequency 1
Base
frequency
voltage 1
0
Function
= (Constant torque characteristics),
[V]
0
Adjustment range
~ Hz
200V class: ~ V
400V class: ~ V
E-15
Base frequency
Adjustment range
~ %
(square reduction torque),
Base frequency
Default setting
Inverter with a model number ending with -WN:
200V models:
400V models:
Inverter with a model number ending with -WN:
E6581301
Output frequency [Hz]
Default setting
According to model
(V/f 5-point
Output frequency [Hz]
-WP:
-WP:
5