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Hitachi L100 instruction manual Monitoring Parameters with the Display, Running the Motor

Models: L100

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Using the Front Panel Keypad

Monitoring Parameters with the Display

After using the keypad for parameter editing, it’s a good idea to switch the inverter from Program Mode to Monitor Mode and close

HITACHI

POWER

the panel door (puts the keys for parameter editing out of sight). This will also turn out the PRG LED, and the Hertz or Ampere LED indicates the display units.

RUNPRG 500 HzA

RUN STOP

RESET

MIN MAX

Inverter Mounting

and Installation

 

 

For the powerup test, let’s monitor the motor speed indirectly by viewing the inverter’s output frequency. The output frequency must not be confused with base frequency (50/60 Hz) of the motor, or the carrier frequency (switching frequency of the inverter, in the kHz range). The monitoring functions are in the “D” list, located near the top left of the keypad navigation diagram.

Output frequency (speed) monitor - Resuming the keypad programming from the previous table, follow the steps in the table below.

Action

Display

Func./Parameter

 

 

 

 

 

 

Press the FUNC. key.

A --

“A” group selected

 

 

 

 

Press the 1 key three times.

D 01

Output frequency selected

 

 

 

 

 

 

Press the FUNC. key.

00

Output frequency displayed

 

 

 

 

 

 

When the d 01 function code appeared, the PRG LED went off. This confirms the inverter is no longer in programming mode, even while you are selecting the particular monitoring parameter. After pressing the FUN key, the display shows the current speed (which is zero at this point).

Running the Motor

If you have programmed all the parameters up to this point, you’re ready to run the motor! First, review this checklist:

1.Verify the Power LED is on. If not, check the power connections.

2.Verify the Run Enable LED is on. If not, review the programming steps to find the problem.

3.Verify the PRG LED is off. If it is on, review the instructions above.

4.Make sure the motor is disconnected from any mechanical load.

5.Turn the potentiometer to the MIN position (completely counter clock-wise).

6.Now, press the RUN key on the keypad. The RUN LED will turn on.

7.Slowly increase the potentiometer setting in clockwise fashion. The motor should start turning when the indicator is in the 9:00 position and beyond.

8.Press the STOP key to stop the motor rotation.

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Hitachi L100 instruction manual Monitoring Parameters with the Display, Running the Motor, Press the 1 key three times
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L100 specifications

The Hitachi L100 series is a versatile range of variable frequency drives (VFDs) designed to enhance performance in various industrial applications. Known for their reliability and efficiency, these drives are widely used in motors for pumps, fans, compressors, and conveyors.

One of the main features of the Hitachi L100 is its impressive control capabilities. The drive supports both scalar and vector control modes, allowing for precise speed and torque management. This flexibility ensures optimal motor performance across different load conditions. Additionally, the L100 series offers an impressive speed range, which can accommodate a wide variety of applications, from low-speed to high-speed requirements.

The L100 is equipped with built-in functionality for energy saving. By utilizing advanced control algorithms and auto-tuning features, the drive optimizes energy consumption, reducing operational costs and contributing to improved overall system efficiency. The energy-saving mode is particularly beneficial in applications where load conditions frequently change.

Another hallmark of the Hitachi L100 is its robust communication capabilities. The drive supports various communication protocols including Modbus and Ethernet, making it easy to integrate into existing control systems. This connectivity allows for real-time monitoring and diagnostics, which aids in predictive maintenance and minimizes downtime.

In terms of user-friendliness, the L100 series includes a clear, intuitive keypad that simplifies programming and operation. The drive also features a wide range of customizable parameters, enabling users to easily tailor the settings to suit specific application requirements. Additionally, the inclusion of a customizable PID controller allows users to refine process control automatically.

Safety is a priority in the design of the Hitachi L100. The drive comes with various built-in safety features such as overvoltage, overload, and short-circuit protection, ensuring reliable operation in challenging environments. Furthermore, it complies with global safety standards, making it suitable for international applications.

Lastly, the L100's compact design ensures easy installation and minimizes the space required in control cabinets. This is especially advantageous in facilities where space is at a premium. Overall, the Hitachi L100 series represents a combination of advanced technology, user-friendly features, and reliable performance, making it a popular choice for industrial automation solutions.