| Primary brand | Mitsubishi Electric |
| Main function | AC servo drive |
| Product series / family name | MELSERVO J3 series |
| Sub-range name | MR-J3 series |
| Functions | Double (2-axis) AC motion servo drive / amplifiersine wave PWM control/current control method |
| Design | built-in dynamic brakebuilt-in regenerative resistorforced ventilation coolingSSCNET III/H |
| Supply voltage (AC) | 200Vac-230Vac (200V class; 220Vac / 230Vac) |
| Type of network | Single-phase input (2P) or 3-phase input (3P) |
| Rated current | 5.8A |
| Rated active power (kW) | 750W / 0.75kW |
| Protection functions | overcurrent shut-offregeneration overvoltage shut-offoverload shut-off (electronic thermal)servo motor overheat protectionencoder fault protectionregeneration fault protectionundervoltage/sudden power outage protectionoverspeed protectionexcessive error protectionmagnetic pole detection protectionlinear servo control fault protection |
| Net Height (mm) | 168 mm |
| Net Width (mm) | 100 mm |
| Net Depth (mm) | 195 mm |
| Digital inputs | 1 x digital input (24Vdc; sink/source) (EM1)1 x digital input (24Vdc; sink/source) (FLS-A)1 x digital input (24Vdc; sink/source) (RLS-A)1 x digital input (24Vdc; sink/source) (DOG-A)1 x digital input (24Vdc; sink/source) (FLS-B)1 x digital input (24Vdc; sink/source) (RLS-B)1 x digital input (24Vdc; sink/source) (DOG-B) |
| Digital outputs | 1 x digital output (rly. contact type) (ALM-A)1 x digital output (rly. contact type) (ALM-B)1 x digital output (rly. contact type) (MBR-A)1 x digital output (rly. contact type) (MBR-B) |
| Analog outputs | 1 x analog output (-10…+10Vdc) (MO1)1 x analog output (-10…+10Vdc) (MO2) |
| Dimensions | H168mm x W100mm x D195mm |
| Ambient air temperature for operation | 0…+55 °C |
| Ambient air temperature for storage | -20°C…+65 °C |
| Current consumption | 10.4A input |
| Power consumption(drive auxiliary power consumption) | 55 W |
| Technical compatibility with | HF-KP series |
| Order code / Manufacturer SKU | MR-J3W-77B |
| Manufacturer product status | Discontinued |
