Description
Engineered for demanding industrial process control, the Mitsubishi Electric FR-A840-02160-2-60 is a highly versatile three-phase 400V class variable frequency drive from the FR-A800 series. Designed with a conformally coated circuit board (3C2) and optimized for high-power induction and permanent magnet motors, this standard-model inverter offers exceptional speed and torque regulation across various industrial environments.
Key Technical Features
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Dual-Rating Capability: Supports multiple rating profiles including Super Light Duty (SLD), Light Duty (LD), Normal Duty (ND), and Heavy Duty (HD) for optimal motor matching.
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Conformal PCB Coating: Features circuit board protection compliant with IEC 60721-3-3 Class 3C2, offering high resistance to corrosive gases and dust.
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Advanced Motor Control: Supports Real Sensorless Vector (RSV) control, closed-loop vector control, and PM sensorless vector control.
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Built-In Safety Functionality: Integrated dual-channel emergency stop (Safe Torque Off - STO) compliant with EN ISO 13849-1 Category 3/PLd.
Applications
- Heavy-duty industrial fans, pumps, and blowers
- Material handling, conveyors, and automated gantry systems
- Extruders, mixers, and industrial centrifuges
- Deep-well water pumping systems and compressors
Technical Specifications
| Manufacturer |
Mitsubishi Electric |
| Model Number |
FR-A840-02160-2-60 |
| Series |
FR-A800 Inverter Series |
| Voltage Class |
Three-Phase 380 to 500 V AC, 50/60 Hz |
| SLD Rated Current (Super Light Duty) |
260 A |
| LD Rated Current (Light Duty) |
216 A |
| ND Rated Current (Normal Duty) |
180 A |
| HD Rated Current (Heavy Duty) |
144 A |
| Control Logic |
Source/Sink logic selectable (CA Type) |
| Conformal PCB Coating |
Class 3C2 (IEC 60721-3-3 compliant) |
| Plated Conductor |
Without |
| Operating Ambient Temp |
-10 degC to 50 degC (non-freezing) |
| Cooling Method |
Forced Air Cooling |
| Country of Origin |
Japan |
| Shipping Weight (Calculated) |
55.0 kg |
Connections and Interfaces
| Terminal Designation |
Function / Circuit Assignment |
| R/L1, S/L2, T/L3 |
Three-phase AC power supply input (380-500V) |
| U, V, W |
Three-phase variable frequency output to motor |
| P/+, N/- |
DC bus connection terminals (external brake unit option) |
| STF / STR |
Forward rotation start / Reverse rotation start control lines |
| S1, S2, SC |
Safety stop input circuit terminals (STO compliant) |
Alternative Models & Compatibility
The FR-A840-02160-2-60 can directly replace legacy FR-A740-02160-EC installations. Although physical footprint differences are minimal, the A800 control parameters must be remapped using FR Configurator2 to accommodate advanced vector motor algorithms and different terminal configurations.
Application Pitfalls & Engineering Notes
When operating in Super Light Duty (SLD) mode at 260A, overload capacity is capped at 110% for 60 seconds. High-inertia or high-torque start applications (such as crushers or heavy screw conveyors) must be run under Heavy Duty (HD) parameters to prevent instant overcurrent trips (E.OC1, E.OC2, E.OC3) during ramp-up cycles.
Commissioning & Wiring Tips
Ensure the integrated EMC filter is enabled by confirming the grounding connector switch is in the correct position for your local grounding grid configuration. For long motor cables exceeding 100 meters, a dV/dt or sine-wave filter must be installed to prevent voltage reflection damage to the motor windings.
Installation Guidelines
CRITICAL WARNING: HIGH VOLTAGE RISK
Isolate all input power supplies before handling control or main circuit terminations. Wait at least 10 minutes post-power-off to allow internal DC link capacitors to discharge below 50V DC. Verify voltage across P/+ and N/- terminals using a certified high-voltage multimeter before proceeding with wiring.
1
Mount the inverter vertically inside a clean, IP54 or NEMA 12 enclosure if operating in environments prone to conductive dust or high ambient humidity.
2
Connect the primary ground terminal to the system ground busbar using the specified gauge to minimize ground loop currents and high-frequency noise EMI.
3
Route control and communication wiring completely segregated from the heavy 3-phase AC input and motor output cabling to eliminate crosstalk.