High-performance Inverter TOSVERT VF-AS1
- Harmonics Reduction,Power Factor Improvement
- High-frequency Noise Reduction
- Simple Setup by EASY Key
- Easy Installation, Easy commissioning, and Easy maintenance
- Excellent Motor Control Performance
- Dedicated Functions Ideal for Lifting Applications
- Customizing by "My Function"
- Communications and Network
- Full option
1.Harmonics Reduction, Power Factor Improvement
A compact, space-saving new type of DC reactor is built into 200 V class 11 to 45 kW and 400 V 18.5 to 75 kW models. In addition to reducing harmonics, this reactor limits the input current to 110% of the rated output current, and it has been designed to be compatible with power supply systems containing transformers, molded-case circuit breakers, and power lines. Adding on the optional DC reactor enables compliance with IEC harmonics standards.
2.High-frequency Noise Reduction
High-frequency noise is drastically reduced on models with built-in noise filters. Built-in noise filters are ideal for sites from commercial facilities and offices through to factories where attention must be paid to peripheral devices. Compared with filter not integrated models, space and wiring savings have been achieved by incorporating the filter in the panel. Also, models with built-in EMC noise filter comply with the European EMC Directive as individual inverter units.
European EMC Directive :
IEC/EN61800-3, 1st Environment, C2
IEC/EN61800-3, 2nd Environment, C3
200V class models, 11 to 45kW : Basic noise filter (not complies with the European EMC Directive) built-in standard
400V class models, 0.75 to 75kW : EMI noise filter (complies with the European EMC Directive) built-in standard
400V class models, 90 to 500kW : EMI noise filter (complies with the European EMC Directive) built-in standard
3.Simple Setup by EASY Key
In the Quick mode, pressing the EASY key on the panel allows you to operate the inverter by eight basic parameters. When setting each of the functions, press the EASY key to move to the standard mode by one-touch operation. In this mode, you can access all parameters.
You can customize the Quick mode display, maximum of 32 target parameters are displayed to suit your specific setup requirements.
You can also use the EASY key as a panel/remote key to switch between panel and remote operation, and as a shortcut key to directly access any specific setup or display screen.
4.Easy Installation, Easy commissioning, and Easy maintenance
Side-by-side installation of inverters is possible up to the inverter’s total capacity. This allows effective utilization of space inside control panels. Heat sink can be installed outside of the panel as an option.
Removable control terminal board
A removable terminal board is used. This allows you to use the control wiring when replacing the inverter, which also makes maintenance easier. ON/OFF control of cooling fan
Temperature-based ON/OFF control reduces noise while the inverter is being stopped, saves energy and extends the cooling fan’s life. Monitoring of serviceable parts/alarm output
The expected replacement cycle of main circuit capacitors, capacitors on control board, and cooling fan is monitored, and an alarm is output when the cycle is reached.
5.Excellent Motor Control Performance
Motor constants required for vector control can be easily set by auto-tuning to enable 1:120 speed control. Moreover, the VFAS1 also features a robust structure that is unlikely to be influenced by motor temperature.
On inverters provided with a sensor, high-torque operation of 200%*2 from zero velocity is possible, achieving a speed control range of 1:1000.
High-speed response frequencies of 40 Hz without sensor and 50 Hz with sensor are achieved respectively, to maintain fixed speed in response to sudden changes in load.
Modifying software enables high-frequency output up to 1000 Hz, which is ideal for spindle rotation of woodworking and metalworking machinery.
When a TOSHIBA standard 3-phase, 0.4 to 3.7 kW 4-pole motor are driven.
6.Dedicated Functions Ideal for Lifting Applications
Brake sequence/light-load, high-speed functions
The inverter has two built-in functions, the brake sequence function and light-load, high-speed function, as standard. The brake sequence function measures the timing with braking by an external motor to achieve smooth operation at start and stop of braking operation. The light-load, high-speed function automatically increases the speed when operating light loads according to the lifting load to improve conveyance efficiency. A learning function for setting and storing to memory required parameters while performing actual operations is also provided to facilitate adjustments.
Built-in transistor for dynamic braking
The VF-AS1 has a built-in transistor for dynamic braking up to 160 kW, which makes it ideal for lifting applications.
7.Customizing by "My Function"
With “My function”, you can create programs containing up to 28 steps. This achieves logic operations and internal data operations. Parameters can also be set according to analog input and minimum-peak hold of analog outputs. For example:
(Ex.1) Inverter is automatically switched to commercial operation without the external sequence when the inverter is tripped.
(Ex.2) A signal is output when torque reaches 120% and frequency is 5 Hz.
(Ex.3) "Forward rotation operation," "Preset-speed operation frequency 3" and "No.2 acceleration/deceleration" are simultaneously turned ON by input on a single terminal.
(Ex.4) The acceleration/deceleration time is changed dynamically by a voltage within the range 0 to 10 V.
8.Communications and Network
RS-485 communications is equipped as standard, and Modbus-RTU protocol is supported in addition to TOSHIBA protocol.
Use of communication options enables support of DeviceNet(*1), PROFIBUS and CC-Link(*2) and other main fieldbuses.
The PCM002Z(*3) communications software allows you to edit, monitor, and trace parameter data on a PC, enabling easier data management from inverter startup through to maintenance.
*1: DeviceNet is a registered trademark of ODVA (Open DeviceNet Vendor Association).
*2: CC-Link is a registered trademark of Mitsubishi Electric Corporation.
*3: Verified OS:Microsoft ®Windows®7/8
LCD Extension Panel Option
This panel is an 23-character x 8-line display, and can be used for simple setup and monitoring by selection of parameters using the jog dial. The display language can be switched between English and Japanese. (German, Italian, Spanish, and Chinese will be available soon.) Type: RKP004Z
LED Extension Panel Option
Our customers require a “display that is easily visible from a long way away.” In response to this need, we developed this panel using 20 mm LEDs, the largest in its class in the market, to ensure outstanding visibility. It has also been designed to be fitted into panels for use as an extension panel or display. In addition, it can be used as a parameter copy and is capable of storing parameters for up to three models. Type: RKP002Z
Expanded Terminal Block Option Fieldbus Option
This I/O terminal block can be added on to enhance your system for extra compatibility with a wide range of systems:
. Contact inputs (4) . Contact outputs (2)
. Analog inputs (2) . Analog outputs (2)
. PTC input (1) . Relay output (1 circuit)
. Pulse train input (1)
Type: ETB003Z, ETB004Z
Main fieldbuses are supported to enable connection to a host controller to achieve savings in space and centralized control of systems.
. DeviceNet*1 . PROFIBUS . CC-Link*2
Type: DEV002Z Type: PDP002Z Type: CCL001Z
*1 DeviceNet is a registered trademark of ODVA (Open DeviceNet Vendor Association).
*2 CC-Link is a registered trademark of Mitsubishi Electric Corporation.
Encoder Feedback Option
Four encoder feedback options are provided to match output for support of vector control with a sensor.
. Line driver output (RS-422) ,Type: VEC007Z
. Open collector/complimentary output (12 V) ,Type: VEC004Z
. Open collector/complimentary output (15 V) ,Type: VEC005Z
. Open collector/complimentary output (24 V) ,Type: VEC006Z
|Safety Environmental Compatibility|
|Ambient temperature 60 degreeC||The VF-AS1 can be used at a rating up to an ambient temperature of 50 degreeC and in environments up to 60 degreeCC at a derating current.|
|Eco Design||88% of materials used on the VF-AS1 are recyclable, which design more than meets of the European WEEE (Waste Electrical and Electronic Equipment) Directive of 70%.|
|Various Drive Performance|
|Permanent Magnet Motor (PM) Drive||The PM is driven efficiently by a TOSHIBA oriented control argorithm to achieve savings in energy and space.|
|New DC Braking||A newly developed DC braking function allows the stop time to a quarter of that on conventional models.|
|A Further Enhanced of Functions|
|Multi-PID Control||As well as process-type PID control (e.g. temperature, pressure, flow rate), the VF-AS1 incorporates speed-type PID control that is compatible with speed feedback, for example, in follow-up operation or winding, for line compatibility with line control.|
Power interruption synchronized control
|Two extra controls are achieved, traverse control during rewinding that is mandatory on fabric machinery, and power interruption synchronized control for preventing thread breakage when a power interruption occurs.|
Speed gain switching
Zero speed lock
|Drooping distributes the load of 2-shaft drive on conveyance machinery, for example. Speed gain switching enables adaptation to changes in inertia during operation. Zero speed is hold when the inverter is stopped. And dwell controls acceleration/deceleration, for example, when conveying heavy loads.|