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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