A500 series
The Mitsubishi A500 series delivers a major leap in dynamic performance to 120:1 speed control range in drive mode and 25:1 in regenerative braking mode without encoder feedback. |
A500 series features:
The ability to maximize inverter performance
New levels in drive performance have been achieved thanks to the use of advanced flux vector control, an original technology developed by Mitsubishi.
* The units feature a RISC processor which is used for on-line auto tuning, turning the motor quickly when starting. This allows it to perform high-precision operations that are unaffected by motor temperature, as well as stable high-torque operation from ultra low speeds.
- Speed control range ......... 1:120 (0.5 to 60Hz, driving mode)
* Combining this function with a motor equipped with PLG feedback improves high-precision operations still further (built-in option FR-A5AP).
- Speed control range .......... 1:1000 (driving mode)
- Speed variation rate .......... +/-0.02% (driving mode)
- Zero speed holding torque .... 150% (short time rating)
* Uneven rotation at low speeds has been greatly improved by the use of a smart driver (a newly developed ASIC) which directly monitors and controls the main circuit's status. Less than half that of a conventional Mitsubishi inverter at 1 Hz.
* Further improving the responsiveness of current detection has reduced the occurrence of trips arising from over-current.
* The addition of a number of new functions such as PID control and brake sequence function has made it possible to handle various applications.
* Up to three option cards can be mounted internally
* Network connection with a PLC is possible, e.g. Control & Communication Link (CC-Link).
Simple operation and maintenance
* The FR-DU04 control panel with simple operation is provided as standard on all models. Parameter setting values also can be stored by FR-DU04.
* The FR-PU04, LCD parameter unit with backlight is available as an option. (8 different languages are available on this unit.)
* Removable control terminal block makes maintenance easier.
* The life of the cooling fan has been extended by the use of ON/OFF control, and also replacement is easier.
Environment friendly
* In addition to the conventional low-noise mode, Mitsubishi has developed its own original Soft-PWM control method which suppresses the increase in acoustic noise and limits RFI noise to minimum levels similar to those of the Mitsubishi FR-Z Series inverter.
* A compact and light weight direct current reactor (DCR) can be connected to units of all capacity (0.4K to 55K). It is also possible to connect a high power factor converter (FR-HC) that comply with Japanese harmonic guidelines (conversion factor: K5=0).
* Combining with the optional EMC filter makes it easy to comply with European EMC Directives.
Global specification
* Comply with UL, cUL and EN (Low Voltage Directive) as standard.
* The optional FR-PU04 parameter unit supports 8 languages.
* NEMA1 compliance is standard up to 22K.
* IP40 compliance up to 22K with the optional cover.
* Open network such as DeviceNet and Profibus-DP are available.
* The communication standard RS-485 is built-in.
* Sink/Source logic is selectable.
A500 series technical specification
Control method |
V/F control or Advanced magnetic flux vector control |
Power supply voltage |
200V class ... 3-phase 200 to 220V50Hz, 200 to 240V60Hz (0.4K to 22K) |
Output frequency |
0.2 to 400Hz |
Frequency setting signal |
DC0 to 5V, 0 to 10V, 0 to +/-10V, 4 to 20mA |
Operation unit |
FR-DU04 (standard) or FR-PU04 (option) |
Protective/alarm functions |
Overcurrent shut-off, regenerative overvoltage shut-off, electronic overcurrent protection, stall prevention, etc. |
Built-in options |
FR-A5AX (12-bit digital input)
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