Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | LPF240F |
| Manufacturer | Hitachi |
| Product Type | AC Drive / Inverter |
| Application | Industrial AC motor control |
| Supply Voltage | 480 VAC reported |
| Normal-Duty Rating | 2 HP reported |
| Heavy-Duty Rating | 1.5 HP reported |
| Normal-Duty Current | 4.1 A reported |
| Heavy-Duty Current | 3.4 A reported |
| Control Method | Open-loop or closed-loop vector control reported |
| Communication | RS-485 |
| Display | LCD keypad reported |
| Mounting | Wall mounting reported |
| Cooling | Verify against actual unit |
| Output Frequency | Verify from nameplate/manual |
| Protection Rating | Verify from actual unit |
The most detailed currently indexed LPF240F listing specifies 480 VAC, 2 HP normal duty, 1.5 HP heavy duty, 4.1 A normal-duty current, and 3.4 A heavy-duty current, with open- or closed-loop vector control and RS-485 communication.
There is also evidence that the LPF240F is an older Hitachi industrial drive rather than a general-purpose control module. Multiple independent industrial automation catalogs identify it specifically as an AC drive inverter.
Application Scenarios & Pain Points
Small drive ratings do not mean low process importance. A 2 HP motor may control a pump, feeder, fan, positioning mechanism, or auxiliary conveyor that can still stop an entire production sequence when its inverter fails.
- Conveyor and material handling: Suitable for variable-speed motor control where acceleration and running speed must be controlled from the drive.
- Pumping applications: Variable-frequency operation can regulate motor speed according to process demand rather than keeping the motor at a fixed speed.
- Fans and auxiliary machinery: The drive can provide adjustable motor speed while supporting controlled starting and stopping.
- Legacy machine control: Particularly relevant where an existing Hitachi installation still depends on the LPF240F hardware and replacing the complete drive architecture would be unnecessarily disruptive.
Field note: Before swapping the drive, record the motor’s rated current, voltage, frequency, and acceleration requirements. If the old unit still powers up, save its parameters first. A physically identical replacement with default settings can behave very differently on the first run.
LPD250A
Related Products
- HITACHI LPF240A — A closely named Hitachi industrial drive reference. It should be treated as a related model, not an automatic substitute; verify voltage, current, firmware, and terminal assignments.
- HITACHI LPA245A — Another Hitachi AC drive reference appearing in the same legacy automation product family. Its electrical rating and application must be checked independently before substitution.
- HITACHI LBT010A — A different Hitachi AC drive inverter used for motor control. It may serve a similar machine-level function but has different model and electrical requirements.
- HITACHI LUD060A — Hitachi industrial drive inverter reference associated with a substantially higher power class. It is useful as an alternative only where the complete motor and application ratings support it.
- HITACHI LYA010A — Another Hitachi drive reference. Similar naming does not mean the unit can be plugged into an LPF240F installation.
- HITACHI LYD000A — Legacy Hitachi AC-drive/control hardware. It belongs to the same broader equipment ecosystem but requires separate compatibility verification.
- HITACHI LPT020A — A different Hitachi automation component associated with position sensing rather than motor power conversion. It may be found in the same machine environment but is not a substitute for LPF240F.
- HITACHI LPD250A — Legacy Hitachi control-system hardware with a different system role. It should not be confused with an AC inverter simply because the model prefixes are similar.
The Engineer’s Guide: Field Pitfalls to Avoid
⚠️ Do not size the replacement by horsepower alone.
The available specification lists 2 HP normal duty and 1.5 HP heavy duty, with different current ratings. Motor current and overload requirements matter just as much as the nominal horsepower.
⚠️ Verify the 480 VAC input class.
Do not assume every listing has the same voltage configuration. The detailed source identifies 480 VAC, while other secondary pages provide little or conflicting electrical information. Confirm the nameplate before energizing a replacement.
⚠️ Preserve the original parameter configuration.
Acceleration/deceleration times, motor data, vector-control settings, frequency limits, I/O assignments, and fault behavior can all affect machine operation. Well, technically, a drive that starts the motor is not necessarily a successful replacement.
Practical check: Photograph the original nameplate and terminal strip, record motor data, save accessible parameters, inspect the DC-bus/cooling section, and compare every control terminal before commissioning.
Frequently Asked Questions (FAQ)
What is HITACHI ?
The is an industrial AC drive inverter used for variable-speed control of AC motors. Multiple industrial automation references classify it as a Hitachi drive/inverter.
What is the rated power of the ?
The most detailed available listing specifies 2 HP for normal-duty operation and 1.5 HP for heavy-duty operation, with corresponding current ratings of 4.1 A and 3.4 A. Verify the physical nameplate before using these figures for engineering sizing.
What voltage does the use?
A detailed product reference specifies 480 VAC supply voltage. Because documentation for this legacy model is limited, the installed drive’s nameplate should be treated as the final authority.
Does support RS-485?
Yes. The available technical listing identifies RS-485 as a communication interface. The exact protocol, addressing, baud rate, and parameter configuration should still be verified against the installed control system.
Can replace LPF240A?
Not automatically. The similar model designation is not enough. Compare:
- Input voltage
- Motor voltage and current
- Duty rating
- Control method
- Terminal assignments
- Communication configuration
- Physical mounting
- Parameter compatibility
For a production machine, I would require the complete nameplate and application data before approving the substitution.
What should I check when purchasing a used ?
Request photographs of the actual , including the nameplate, front keypad, terminals, cooling fan/heatsink, and any visible revision information. A useful test should verify power-up, display operation, control inputs, output behavior, communication where applicable, and operation under an appropriate motor load.
