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  3. TOSVERT VF-AS1 Common specifications

Product information


- Common specificaitons -
Item Specification
Control system Sinusoidal PWM control
Output voltage adjustment Main circuit voltage feedback control. (Switchable between automatic adjustment/fix/control off)
Output frequency range Setting between 0.01 to 500Hz. Default max. frequency is set to 0.01 to 60Hz.
Maximum frequency adjustment (30 to 500Hz)
Minimum setting steps of frequency 0.01Hz: operation panel input (60Hz base), 0.02Hz: analog input (60Hz base, 11 bit/0 to 10Vdc)
Frequency accuracy Within +/-0.2% (25 degreeC+/-10 degreeC): analog input +/-0.01% (25 degreeC+/-10 degreeC): digital input
Voltage/frequency characteristics V/f constant, square reduction torque control, automatic torque boost, vector calculation control, base frequency adjustment 1, 2, 3, and 4 (25 to 500Hz), V/F 5-point arbitrary setting, torque boost adjustment (0 to 30%), start frequency adjustment (0 to 10Hz), stop frequency adjustment (0 to 30Hz)
Frequency setting signal 3kohm potentiometer (possible to connect to 1 to 10kohm-rated potentiometer)
0 to 10Vdc (input impedance Zin: 30kohm)
0 to +/-10Vdc (Zin: 22kohm)
4 to 20mAdc (Zin:242ohm)
Terminal board base frequency The characteristic can be set arbitrarily by two-point setting. Compliant with 6 types of input; analog input (RR, VI/II, RX, RX2), pulse input and binary/BCD input (*RX2, binary/BCD input: optional)
Frequency jump 3 places. Setting of jump frequency and width.
Upper and lower limit frequencies Upper limit frequency: 0 to max. frequency, lower limit frequency: 0 to upper limit frequency
PWM carrier frequency 200V-45kW or less, 400V-75kW or less : adjustable between 1.0 to 16kHz
200V-55kW or more, 400V-90kW or more : adjustable between 2.5 to 8kHz
PID control Adjustment of proportional gain, integral time, differential time and delay filter
Torque control Voltage command input specification: DC 0 to +/-10V
Acceleration/deceleration time 0.01 to 6000 sec. Selectable from among acceleration/deceleration. times 1, 2, 3 and 4. Automatic acceleration/deceleration function. S-pattern acceleration/deceleration 1 and 2 pattern adjustable.
DC braking Adjustment of braking start frequency (0 to 120Hz), braking (0 to 100%) and braking time (0 to 10 sec.). With emergency stop braking function and motor shaft fix control function.
Forward run/reverse run Note 1) With F-CC closed to forward run, with R-CC closed to reverse run, with both closed to stop. With ST-CC opened to coast stop. Emergency stop by panel operation or terminal board.
Jog run Note 1) Jog mode, if selected, allows jog operation from the operation panel
Jog run operation by terminal board is possible by setting the parameters.
Preset speed operation Note 1) By changing the combination of open/close between S1, S2, S3, RR/S4-CC, set frequency + 15-speed operation.
Selectable between acceleration/deceleration time, torque limit and V/f by set frequency.
Retry Capable of restarting after a check of the main circuit elements in case the protective function is activated. Max. 10 times selectable arbitrarily. Waiting time adjustment (0 to 10 sec.)
Soft stall Automatic load reduction control at overloading. (Default: OFF)
Cooling fan ON/OFF The cooling fan will be stopped automatically to assure long life when unnecessary.
Operation panel
key operation ON/OFF control
Key prohibition selectable between Stop key only, Mode key only, etc. All key operations can be prohibited.
Regenerative power ride-through control Possible to keep the motor running using its regenerative energy in case of a momentary power failure. (Default: OFF)
Auto-restart operation Possible to restart the motor in coasting in accordance with its speed and direction. (Default: OFF)
Simplified pattern operation Possible to select each 8 patterns in 2 groups from 15-speed operation frequency. Max. 16 types of operation possible. Terminal board operation/repeat operation possible.
Commercial inverter switching Possible to switch operation by commercial power source or inverter
Light-load high-speed operation Increases the operating efficiency of the machine by increasing the rotational speed of the motor when it is operated under light load.
Drooping function When two or more inverters are used to operate a single load, this function prevents load from concentrating on one inverter due to unbalance.
Override function External input signal adjustment is possible to the operation frequency command value.
Protective function Stall prevention, current limit, overcurrent, overvoltage, short circuit on the load side, ground fault on the load side (Note 5), undervoltage, momentary power failure (15ms or more), non-stop control at momentary power failure, overload protection, arm overload at starting, overcurrent on the load side at starting, overcurrent and overload at dynamic braking resistance, fin overheat, emergency stop
Electronic thermal characteristic Switchable between standard motor/constant torque VF motor, adjustment of overload protection and stall prevention level.
Reset Reset by 1a contact closed (or 1b contact opened), or by operation panel. Or power source OFF/ON. This function is also used to save and clear trip records.
Alarms Stall prevention during operation, overload limit, overload, undervoltage on power source side, DC circuit undervoltage, setting error, in retry, upper limit, lower limit.
Causes of failures Overcurrent, overvoltage, fin overheat, short circuit on the load side, ground fault on the load side, inverter overload, arm overcurrent at starting, overcurrent on the load side at starting, EEPROM error, RAM error, ROM error, transmission error, (dynamic braking resistor overcurrent/overload), (emergency stop), (undervoltage), (low current), (overtorque), (motor overload), (output phase failure) The items in the parentheses are selectable.
Monitoring function Operation frequency, operation frequency command, forward run/reverse run, output current, DC voltage, output voltage, compensated frequency, terminal board input/output information, CPU version, control EEPROM version, past trip history, cumulative operation time, speed feedback, torque, torque command, torque current, exiting current, PID feedback value, motor overload factor, inverter overload factor, PBR overload factor, PVBR load factor, input power, output power, peak output current, peak DC voltage, Motor counter pseudo PG, position pulse, RR input, VI/II input, RX input, RX2 input, FM output, AM output, meter adjustment fix output, flash memory version, main circuit EEPROM version, types of connection option, previous default setting, previous automatic control (AU2)
Free unit display Display of optional units other than output frequency (motor speed, line speed, etc), current ampere/% switch, voltage volt/% switch
Automatic edit function Searches automatically parameters that are different from the standard default setting parameters. Easy to find changed parameters.
User default setting User parameter settings can be saved as default settings. Allows to reset the parameters to the user-defined parameter settings.
LED Charge display Displays main circuit capacitor charging.
Input/output terminal input function Possible to select positive logic or negative logic with programmable input/output terminal function menu. Note 1) Note 2) (Default setting: positive logic)
Sink/source switching Possible to switch between minus common (CC) and plus common (P24) for control terminal. (Default setting: minus common (CC))
Failure detection signal 1c contact output (250Vac-2A-cosO=1, 250Vac-1A-cosO=0.4, 30Vdc-1A)
Low speed/speed reach signal output
Note 2)
Open collector output (24Vdc, max. 50mA, output impedance: 33ohm)
Upper/lower limit frequency signal output
Note 2)
Open collector output (24Vdc, max. 50mA, output impedance: 33ohm)
Output for frequency meter/output
for ammeter Note 3)
Analog output. 1mAdc full-scale DC ammeter or 7.5Vdc-1mA voltmeter
Pulse train frequency output Open collector output (24Vdc, max. 50mA)
Communication function RS-485 standard 2-channel equipped (connector: modular 8P)CC-Link, DeviceNet and PROFIBUS-DP are optional.
Environments Operating environments Indoor use. Altitude: 3000m or less (current reduction necessary if 1000m or more.) Place not exposed to direct sunlight and free of corrosive and explosive gases.
Ambient temperature -10 to +60 degreeC (Remove the upper cover if 40 degreeC or more, max. 60 degreeC) Note 4)
Storage temperature -25 to +70 degreeC
Relative humidity 20 to 93% (free from condensation)
Vibration 5.9m/s2{0.6G} or less (10 to 55Hz) (Compliant with JIS C60068-2-6)
Note 1) 16 contact input terminals (of which 8 are options) are programmable contact input terminals, and they make it possible to arbitrarily select from 136 types of signals.
Note 2) Programmable ON/OFF output terminals make it possible to arbitrarily select from 150 types of signals.
Note 3) Programmable analog output terminals make it possible to arbitrarily select from 55 types of signals.
Note 4) When using inverters where the ambient temperature will rise above 50 degreeC, remove the upper cover and operate each inverter at a current lower than the rated one.
Note 5) This function protects inverters from overcurrent due to output circuit ground fault.

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