Mitsubishi Electric frequency inverter FR-A800 Plus is suited for various cranes to achieve fast, robust, and smooth operations. By using the Mitsubishi’s original anti-sway control technology, the swinging of an object moved by a crane is suppressed at the time of stopping, even without operator’s input adjustment. This control cuts down the tact time and facilitates efficient operation.
- Brake sequence function
-
Falling detection -
Low-speed range speed control P gain -
Overload detection function -
Start count monitor -
Compliance with ship classification standards -
Enhanced vibration resistance (protection against vibration) -
Improved environmental resistance (measures against dust, dirt, and corrosion) -
Longer service life (long life components) -
High torque at low speed -
PLC function -
Easy USB cable connection -
Efficient startup settings
Specifications
| Manufacturer: | Mitsubishi Electric |
| Series: | FR-A800 Plus |
| Model: | FR-A840-3.7K-1-60CRN |
| Application: | cranes |
| Capacity, kW: | 3,7 |
| Current, А: | 9 |
| Main power supply, V: | 380-480 |
| Phase: | 3 |
| Output frequency, Hz: | 0,2-590 |
| Enclosure: | IP20 |
| Overload capacity, % per 1 min.: | 150 |
| Acceleration time, sec: | 0-3600 |
| Deceleration time, sec: | 0-3600 |
| Braking unit: | built-in braking transistor |
| Analog input: | 3 |
| Digital input: | 1 |
| Analog output: | 2 |
| Digital output: | 1 multi-functional |
| Relay output: | 1 multi-functional |
| RS485 (Modbus RTU): | RS-485 |
| Starting torque: | 200% at 0,3 Hz |
| PID: | + |
| V/f control mode: | + |
| Sensorless vector control: | + |
| Operation temperature, °С: | -10…..+50 |
| Storage temperature, °С: | -20…..+65 |
| Dimensions (W x H x D), mm: | 150x260x140 |
| Weight, kg: | 3,3 |
