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  3. TOSVERT VF-AS3 Common specifications

Product information


- Common specificaitons -
Item Specification
Control system Sinusoidal PWM control
Output voltage adjustment Adjustable within the range of 50 - 330 V (240 V class) and 50 - 660 V (480 V class) by correcting the supply voltage
Output frequency range Setting between 0.01 - 590 Hz. Default max. frequency is set to 0.01 - 80 Hz.
Maximum frequency adjustment (30 to 590Hz)
Minimum setting steps of frequency 0.01 Hz: operation panel input (60 Hz base), 0.03 Hz: analog input (60 Hz base, 11 bit/0 - 10 Vdc)
Frequency accuracy Analog input: +/-0.2% of the maximum output frequency (at 25+/-10 degreeC) Digital input: +/-0.01%+/-0.022 Hz of the output frequency
Voltage/frequency characteristics V/f constant, variable torque, automatic torque boost, vector control, base frequency adjustment 1, 2, 3, and 4 (15 - 590Hz), V/f 5-point arbitrary setting, torque boost adjustment (0 - 30%), start frequency adjustment (0 - 10 Hz), stop frequency adjustment (0 - 30 Hz)
Frequency setting signal 3 kohm potentiometer (possible to connect to 1 - 10 kohm-rated potentiometer)
0 - 10Vdc (input impedance Zin: 31.5 kohm)
-10 to +10 Vdc (Zin: 31.5 kohm)
4 - 20 mAdc (Zin: 250 ohm)
Terminal block frequency command The characteristic can be set arbitrarily by two-point setting. Compliant with 7 types of input;analog input (RR, RX, II, AI4, AI5), and pulse input (S4, S5)
Frequency jump Three frequency can be set. 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 Frame size A1 to A4: adjustable between 1.0 - 16 kHz Frame size A5 to A8: adjustable between 2.5 - 8 kHz
PID control Adjustment of proportional gain, integral time, differential time and delay filter. Multi PID and external PID control.
Torque control Voltage command input specification: -10 - +10 Vdc
Real Time Clock (RTC) Current time (year, month, date, hour, minute), Timezone, Daylight saving time, 4 work days and 20 holidays can be set by parameters
Acceleration/deceleration time 0.01 - 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 - [FH]Hz), braking (0 - 100%) and braking time (0 - 25.5 sec.). With emergency off braking function and motor shaft fix control function.
Forward run/reverse run Note 1) Forward run with ON of the terminal [F], Reverse run with ON of the terminal [R] (Default setting). Coast stop with OFF of the terminal assigned Stad-by function. Emergency off by panel operation or terminal.
Jog run Note 1) Jog run, if selected, allows jog operation from the operation panel
Jog run operation by terminal block is possible by setting the parameters.
Preset speed operation Note 1) By changing the combination of the terminals [S1], [S2], [S3], [S4], [S5] set frequency + 31-speed operation.
Selectable between acceleration/deceleration time, torque limit and V/f by set frequency.
Retry Capable of restarting after a check of the power circuit elements in case the protective function is activated. Max. 10 times selectable arbitrarily. Waiting time adjustment (0 - 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 lock selectable between STOP key only, MODE key only, etc. All key operations can be locked.
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 operation/repeat operation possible.
Commercial inverter switching Possible to switch operation by commercial power supply 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 4), undervoltage, momentary power failure (15 ms 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 braking resistor, overheat, emergency off
Electronic thermal characteristic Switchable between standard motor/constant torque 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 supply OFF/ON. This function is also used to save and clear trip records.
Screen of LCD
Alarms Stall prevention during run, overload limit, overload, undervoltage on power supply side, DC circuit undervoltage, setting error, in retry, upper limit, lower limit.
Causes of failures Overcurrent, overvoltage, 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, Cooling fan fault, CPU fault, EEPROM fault, RAM fault, ROM fault, communication error, (braking resistor overcurrent/overload), (emergency off), (undervoltage), (undercurrent), (overtorque), (motor overload), (input phase failure), (output phase failure) The items in the parentheses are selectable.
Monitoring function Output frequency, frequency command, forward run/reverse run, output current, DC voltage, output voltage, compensated frequency, terminal input/output information, CPU version, past trip history, cumulative operation time, feedback frequency, torque, torque command, torque current, exiting current, PID feedback value, motor overload factor, inverter overload factor, PBR overload factor, PBR load factor, input power, output power, peak output current, peak DC voltage, RR input, II input, RX input, AI4 input, AI5 input, FM output, AM output, expansion I/O card option CPU version, integral input power, integral output power, communication option reception counter, communication option abnormal counter.
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 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 power circuit capacitor charging.
Input/output terminal logic function Possible to select positive logic or negative logic with programmable input/output terminal function menu. 2 or 3 function can be assigned for some terminals. Note 1) Note 2) (Default setting: positive logic)
Sink/source switching Possible to switch between minus common (CC) and plus common (P24) for digital input terminal. (Default setting: external power supply)
Failure detection signal 1c contact output (250Vac-2A (cosO=1), 30Vac-2A (Resistive), 250Vac=1A (cosO=0.4), 30Vdc=1A (L/R=7ms))
Relay output
2X1a contact output (250Vac-2A (cosO=1), 30Vac-2A (Resistive), 250Vac=1A (cosO=0.4), 30Vdc=1A (L/R=7ms))
Low speed/speed reach signal output
Note 2)
Digital output (24 Vdc, max. 50 mA)
Output for frequency meter/output
for ammeter Note 3)
Analog output for meter: 1 mA dc full-scale dc ammeter 0 - 20 mA (4 - 20 mA) output: DC ammeter (allowable load resistance: 500 ohm or less) 0 - 10 V output: DC voltmeter (allowable load resistance: 1 kohm or more)
Pulse train frequency output Pulse train output (Up to 30 kpps, duty 50%)
Communication function Ethernet standard 2-channel equipped (connector: RJ45) IEEE802.3/IEEE802.3u (Fast Ethernet) (10/100Mbps: Auto negotiation) RS485 standard 2-channel equipped (connector: RJ45) PROFINET, DeviceNet, PROFIBUS-DP, EtherCAT are optional.
Environments Use environments Indoor use. Altitude: 4800m or less for frame size A1 to A6, 3000m or less for frame size A7 and A8 (current reduction necessary when above 1000 m). Place not exposed to direct sunlight and free of corrosive and explosive gases.
Ambient temperature -15 to +60 degreeC Note 5) Frame size A1 to A5: Current reduction, remove the top cover when above 50 degreeC; Frame size A6: Current reduction when above 50 degreeC Note 6); Frame size A7 and A8: Current reduction when above 50 degreeC (HD), above 45 degreeC (ND)
Storage temperature -25 to +70 degreeC Note 7)
Relative humidity 5 to 95% (free from condensation)
Vibration Frame size A1 to A6: 5.9 m/s2{0.6G} or less (10 - 55 Hz), Frame size A7, A8: 2.9 m/s2{0.3G} or less (10 - 55 Hz)
Note 1) 14 digital input terminals (of which 6 are options) are programmable digital input terminals, and they make it possible to arbitrarily select from 178 types of signals.
Note 2) Programmable ON/OFF output terminals make it possible to arbitrarily select from 256 types of signals.
Note 3) Programmable analog output terminals make it possible to arbitrarily select from 54 types of signals.
Note 4) This function protects inverters from overcurrent due to output circuit ground fault.
Note 5) Remove operation panel of the inverter when above 50 degreeC.
Note 6) VFAS3-4132KPC (ND): Current reduction when above 45 degreeC.
Note 7) Temperature applicable for a short term. e.g. during transportation

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