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FA/industrial, mechatronic systems DC drive control device DC motor Variable speed drive device Thyristor Leonard device MeLEO®-MeLEO-20S
FA/industrial, mechatronic systems DC drive control device DC motor Variable speed drive device Thyristor Leonard device MeLEO®-Mitsubishi Electric Engineering Co., Ltd.

FA/industrial, mechatronic systems DC drive control device DC motor Variable speed drive device Thyristor Leonard device MeLEO®
Mitsubishi Electric Engineering Co., Ltd.


About This Product

■Summary

Thyristor Leonard devices have been manufactured and used by customers since the late 1960s as power supplies for driving DC motors. On the other hand, DC motors continue to operate due to their robustness. As DC motor drive power supplies, we provide customers with products that are compact in appearance and contribute to stable operations.

■Easy maintenance

This enables front-line maintenance of major parts. The intake air filter can be replaced from the front, making maintenance easy. It is also easy to replace the pressure ventilation fan. - Air filters can be replaced by simply removing two screws. ・You can easily remove the pressure ventilation fan by pulling up the handle.

■Reliability

The main circuit uses a thyristor, which has been proven since the 1960s, and the control circuit follows an analog control circuit.

■Long lifespan

Longer life has been achieved by using a film capacitor in the snubber circuit.

■Space saving

- Compact design. ・Installation area Width: 700mm x Depth: 550mm

■Convenient options

We have prepared a "Fault Trace Function" that facilitates failure analysis and shortens MTTR*1. *1 MTTR: ​​Mean repair time

■Features

The DC drive device uses a main circuit that uses a highly reliable and long-life thyristor.

■Applications

Industrial use such as steel, paper/pulp, etc./cableways, cranes/test equipment, etc.

  • Product

    FA/industrial, mechatronic systems DC drive control device DC motor Variable speed drive device Thyristor Leonard device MeLEO®

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1 Models of FA/industrial, mechatronic systems DC drive control device DC motor Variable speed drive device Thyristor Leonard device MeLEO®

Image Part Number Price (excluding tax) Thyristor device protection method Thyristor device cooling method Thyristor device control method Thyristor device paint color Thyristor device rated DC output voltage Thyristor device field control Thyristor device field power supply rating options Thyristor device speed control range Thyristor device speed control accuracy Thyristor device speed detection Thyristor device continuous rating Thyristor device overload rating Thyristor device voltage control accuracy Thyristor device current control accuracy Thyristor device current limit Input power supply rating AC input voltage Input power rating frequency Input power supply rating Frequency fluctuation range Input power supply rating Number of phases Input power supply rating Voltage fluctuation range Ambient temperature/humidity Rotation direction Elevation Compliant standards Installation location Additional features-1 Additional features-2 Motor capacity
FA/industrial, mechatronic systems DC drive control device DC motor Variable speed drive device Thyristor Leonard device MeLEO®-Part Number-MeLEO-20S

MeLEO-20S

Available upon quote

Output voltage limit circuit
Output current limit circuit
Gate cutoff circuit
electronic thermal relay circuit
fast-acting fuse
surge absorber
circuit breaker

Forced air cooling (MeLEO-20D/40D is self-cooled)

Speed control
voltage control
current control

Munsell 5Y7/1 Semi-gloss Film thickness 30μm or more
(Only the outside surface. The inside surface is not painted.)

200/220V
400/440V
500V

Automatic weakening control or constant control

25A, AC200V/DC140V, AC220V/DC160V
65A, AC200V/DC140V, AC220V/DC160V: Separate installation, etc.

1:200 (constant torque)
Option 1: 200 or more

Within ±0.5%

P.G.

100%

150% 1 minute
Options 200% 1 minute / 250% 1 minute (Please confirm individually)

Within ±1%

Within ±2%

Fixed
Options Variable (Supported by external circuit)

200/220V
400/440V
500V

50/60Hz

±1Hz

3

±10%

0~40℃ (No freezing) ・15~85% (No condensation)

Irreversible (one way)

Less than 1,000m

JIS, JEM, JEC2410

Indoors (no corrosive gas or dust)

Fault tracing function
1. Ref: Reference signal
2. Nfbk: Velocity feedback (with PG)
3. CS: Current feedback

Fault tracing function
4. VF: Output voltage feedback
5. GPG: Gate signal
6. VS: Main circuit input voltage

7.5kW or less

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