
TOSHIBA
3.3 Standard Specifications
3 - 2
Control Control Method Sinusoidal PWM control
Output voltage regulation Same as power line.
Output frequency 0.0 to 120.0 Hz (0.0 to 60 Hz setting when shipped)
Frequency setting 0.1Hz: Operating panel input; 0.03 Hz: Analog input;
resolution 0.01Hz: Input through computer interface
Frequency accuracy ±0.5% (at 25°C; ±10°C) against the maximum frequency
Voltage/frequency Second-order nonlinear mode for variable torque.
characteristics "Max voltage" frequency adjustment (30 to 120 Hz), torque
boost adjustment (0 to 30 %), start-up frequency adjustment
(0 to 10 Hz)
Frequency setting signals 3k ohms potentiometer (a 1k to 10k ohms-rated potentiometer can
be connected). 0 to 10 Vdc (input impedance: 30k ohms), 0 to
5 Vdc (15k ohms), 4 to 20 mAdc (250 ohms)
Output frequency Determines the rate of change of frequency out, when compared
characteristics of IV to rate of change of speed reference signal.
terminal input signal
Frequency jump 3-points with selectable jump frequency and bandwidth
Upper/lower limit Upper limit frequency: 0.0 Hz to maximum frequency
frequencies Lower limit frequency: 0.0 Hz to upper limit frequency
PWM carrier frequency Adjusted in the range of .5 kHz to 3.0 kHz
switching
Operating Acceleration/deceleration 3 to 1200 seconds, switching of acceleration time 1 or 2,
functions time selection of S-shaped 1 or 2, or selection of acceleration/
deceleration patterns
Electrical braking DC injection braking Start-up frequency adjustment (0 to 10 Hz),
braking voltage adjustment (0 to 20 %),
braking time adjustment (0 to 5 seconds)
Forward or reverse run Forward run when F-CC closed; reverse run when R-CC closed;
reverse run when both F-CC and R-CC closed; coasting stop
when ST-CC open; emergency coast stop by a command from
operating panel
Jogging run Jogging run engaged when N.O. contact is closed. (adjustment
range 0.0 to 20.0 Hz)
Multispeed run By opening and closing different combinations of CC, SS1, SS2,
and SS3, the set speed or seven preset speeds can be selected.
Automatic fault latch reset When a protective function is activated, the system checks main
circuit devices, and attempts the restart up to 5 times (activated
when shipped).
Soft stall Sustains a run in overload mode (set at ON when shipped)
Automatic restart Smoothly recovers a normal run of a free-running motor utilizing
motor speed detection control.
Programmable RUN Allows setting of 7 different patterns of automatic operation
patterns
Protection Protective functions Stall prevention, current limit, overcurrent, overvoltage, short-
circuit at load, load-end ground fault, undervoltage, momentary
power interrupt, electronic thermal overload, main circuit over-
current at start-up, load-end overcurrent at start-up, cooling
fin overheat, and emergency stop. Provisions for external
fault signal.
Electronic thermal Standard motor/constant torque V/f motor switching, and
characteristics electronic thermal stall prevention activating level adjustment
Reset Resets inverter when N.O. contact is closed.
ITEM STANDARD SPECIFICATIONS
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