L100 Inverter

3–25

Miscellaneous Settings

The miscellaneous settings include scaling factors, initialization modes, and others. Here we will cover some of the most important settings you may need to configure.

B32: Reactive current setting – the inverter’s D02 monitor function displays the motor current. The display accuracy (normally ± 20%, depending on the connected motor’s characteristics) can be improved by adjustment of the B32 parameter. Use B32 to calibrate the internal no-load or reactive motor current detection to improve the accuracy of the D02 current display.

NOTE: Parameter setting B32 affects the inverter’s electronical thermal protection (B12 setting) and its overload restriction function (B22 setting).

B83: Carrier frequency adjustment – the internal switching frequency of the inverter circuitry (also called the chopper frequency). It is called the carrier frequency because the lower AC output frequency of the inverter “rides” the carrier. The faint, high-pitched sound you hear when the inverter is in Run Mode is characteristic of switching power supplies in general. The carrier frequency is adjustable from 500 Hz to 16 kHz. The audible sound decreases at the higher frequencies. For settings above 12 kHz, you must derate the inverter output current by 20% (due to increased heating).

NOTE: When DC braking is performed, the inverter automatically holds the carrier frequency at 1 kHz.

NOTE: The carrier frequency setting must stay within specified limits for inverter-motor applications that must comply with particular regulatory agencies. For example, a European CE-approved application requires the inverter carrier to be less than 5 kHz.

B84, B85 – Initialization codes – these functions allow you to restore the factory default settings. Please refer to page 6–8 for full instructions on restoring factory defaults.

B86 – Frequency display scaling – you can convert the output frequency monitor on D01 to a scaled number monitored at function D07. For example, the motor may run a conveyor that is monitored in feet per minute. Use this formula:

Scaled output frequency (D07) = Output frequency (D01) Factor (B86)

Drive Parameters

Configuring

 

 

 

 

“B” Function

Run-

Defaults

DOP,DRW,DOP+

 

 

 

 

 

 

 

 

 

 

 

Func.

Name

Description

time

EU/

Units

Func.

Name

 

 

Edit

 

 

Code

US

Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B32

Reactive current

Calibrate detection of motor’s

58%

Amps

Mon.

IO

 

 

 

setting

no load (reactive current) to

 

rated

 

 

 

 

 

 

 

improve D02 display accuracy,

 

current

 

 

 

 

 

 

 

range is 0 to 32 Amperes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B81

Analog frequency

Adjust 8-bit gain to analog

80

Mon.

ADJ

 

 

 

meter adjustment

meter connected to terminal

 

 

 

 

 

 

 

 

 

FM, range is 0 to 255

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Hitachi L100 instruction manual Miscellaneous Settings, Adj

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.