Toshiba Q-Flowsaver II - Manual (Page 13)

TOSHIBA
3.0 Standard Specifications (cont'd)
ITEM STANDARD SPECIFICATIONS
Control Control Method Sinusoidal PWM control
Output voltage regulation Same as power line.
Output frequency 0.0 to 160.0 Hz (0.0 to 60 Hz setting when shipped); maximum
frequencv ranqe is 30 to 160 Hz *1
Frequency setting
resolution 0.1Hz: Operating panel input; 0.03 Hz: Analog input; 0.01Hz:
Input throuqh computer interface (aqainst a 60 Hz)
Frequency accuracy ±0.5% (at 25°C; ±10°C) aqainst the maximum frequency
Voltage/frequency
characteristics Second-order nonlinear mode for variable torque.
"Max voltage" frequency adjustment (25 to 160 Hz), torque
boost adjustment (0 to 30 %), start-up frequency adjustment
(Oto 10 Hz)
Frequency setting signals 3k ohms potentiometer (a 1 k 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
characteristics of IV
terminal input signal Can be set to an arbitrary characteristic by setting 2 points.
Frequency jump 3-point setting; setting jump frequency and band width
Upper/lower limit
frequencies
Upper limit frequency: 0.0 Hz to maximum frequency
Lower limit frequency: 0.0 Hz to upper limit frequency
PWM carrier frequency
switching
Adjusted in the range of 5 kHz to 16 kHz (12 kHz setting when
shipped)
Operating
functions
Acceleration/deceleration
time 0.1 to 1200 seconds, switching of acceleration time 1 or 2,
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, SSI, 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
patterns Allows setting of 7 different patterns of automatic operation
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
characteristics
Standard motor/constant torque V/f motor switching, and
electronic thermal stall prevention activating level adjustment
Reset Resets inverter when N.O. contact is closed.
Consult the factory for applications above 80 Hz.
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