The Hitachi J300 auto tuning sensorless flux vector inverter had features never before achieved in a drive of its type.
The Hitachi J300 inverter enables performance approaching that of a servo system, at low cost, with easy installation and setting, yet with features which benefit the broadest cross section of industries. The Hitachi J300 can be fitted to almost any AC motor and appeals equally to OEMs and end users.
The Hitachi J300 inverter took this technology on a generation with the application of fuzzy logic and the incorporation of advanced features such as automatic tuning. Indeed, both the range of features and mechanical construction of the Hitachi J300 inverter is indicative of Hitachi's total design approach. Hitachi's sensorless flux vector J300 inverters give approaching AC servo performance from a drive that is as easy to install as any open loop system.
We can offer to repair for J300s.
| Control System | Sensorless Flux Vector |
| Output Frequency Range | 0.1 to 400Hz |
| Overload Rating Constant Torque | 150% for 1 minute |
| Overload Rating Fan and Pump | 115% for 30 seconds |
| Frequency Resolution | 0.01Hz |
| Starting Torque | 150% (minimum) @ 1Hz |
| Braking | By external unit |
| DC Injection Braking | Independent setting for power, time, frequency |
| Speed Reference | Digital, 0-5V, 0-10V, 4-20mA |
| Multi Stage Speed | 8 Pre-sets |
| Output Voltage | Auto Voltage Regulation AVR |
| Accel/Decel | 0.01-3000s linear or S ramp - 2 selectable |
| Input Terminals | 8 programmable terminals from 28 selections |
| Output Terminals | 2 programmable terminals from 4 selections |
| Drive Status | Status Relay |
| Meter Output | Volt output for speed & load |
| Carrier Frequency | 2-16KHz |
| Dual Motors | 2nd set of motor functions |
| Fuzzy Logic | Standard |
| Auto Tuning | Standard |
| Load Rating | Constant torque / Fan & pump ratings |
| Auto Energy Saving | Standard |
| Protection | 26 functions inc. earth fault |
| Trip History | Last 3 trips, total trip log & run time since last trip |
| Ambient Temperature | -10°C to 50°C |
| Model Number | Motor Power | Rated Current |
| Constant Torque/Fan & Pump | ||
| 380-460V 3ph input | ||
| J300-055HFE | 5.5/7.5kW | 13/16A |
| J300-075HFE | 7.5/11kW | 16/23A |
| J300-110HFE | 11/15kW | 23/30A |
| J300-150HFE | 15/22kW | 32/44A |
| J300-220HFE | 22/30kW | 48/59A |
| J300-300HFE | 30/37kW | 58/74A |
| J300-370HFE | 37/45kW | 75/88A |
| J300-450HFE | 45/55kW | 90/108A |
| J300-550HFE | 55/75kW | 110/146A |
| J300-750HFE | 75/90kW | 149/176A |
| J300-900HFE | 90/110kW | 176/217A |
| J300-1100HFE | 110/132kW | 217/260A |