L100 Inverter

3–11

Analog Input Settings

The inverter has the capability to accept an external analog input that can command the output frequency to the motor. Voltage input (0 –10V) and current input (4–20mA) are available on separate terminals (“O” and “OI,” respectively). The analog input settings add scaling and offset adjustments between the analog input and the frequency output.

In the graph below (left), A13 and A14 select the active portion of the input voltage or current range. The parameters A11 and A12 select the start and end frequency of the converted output frequency range, respectively. Together, these four parameters define a line segment as shown (below, right). When the line does not begin at the origin, A15 defines whether the inverter outputs 0Hz or the A11frequency when the analog input value is less than the A13 setting (determines the non-linear part of the translation).

Frequency

Frequency

A12

A12

 

A15 = 00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A11

 

 

 

 

 

 

 

 

 

 

 

A11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

% input

0 Hz

 

 

 

A15 = 01

 

 

% input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

scale

 

 

 

 

 

 

 

 

 

 

 

scale

0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10V

0V

 

 

 

 

 

 

 

10V

A13

 

 

 

 

 

 

 

 

 

 

A14

A13

 

 

A14

4mA

 

 

 

 

 

 

 

 

 

 

 

20mA

4mA

 

 

20mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“A” Function

Run-

Defaults

DOP,DRW,DOP+

 

 

 

 

 

 

 

Func.

Name

Description

time

EU/

Units

Func.

Name

Edit

Code

US

Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A11

External frequency

The output frequency corre-

✘

0

Hz

F-31

IN EXS

 

output zero reference

sponding to the analog input

 

 

 

 

 

 

range starting point

 

 

 

 

 

 

 

 

 

 

 

 

 

A12

External frequency

The output frequency corre-

✘

0

Hz

F-31

IN EXE

 

output span reference

sponding to the analog input

 

 

 

 

 

 

range ending point

 

 

 

 

 

 

 

 

 

 

 

 

 

A13

External frequency

The starting point (offset) for

✘

0

%

F-31

IN EX%S

 

input bias start

the active analog input range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A14

External frequency

The ending point (offset) for

✘

100

%

F-31

IN EX%E

 

input bias end

the active analog input range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A15

External frequency

Two options; select codes:

✘

01

—

F-31

IN

 

offset enable

00... Use offset (A11 value)

 

 

 

 

LEVEL

 

 

01... Use 0 Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

A16

External frequency

Range n = 1 to 8, where n =

✘

8

Sam-

F-31

IN

 

filter time constant

number of samples for avg.

 

 

ples

 

F-SAMP

 

 

 

 

 

 

 

 

Drive Parameters

Configuring

 

 

Page 66 Page 68
Page 67
Image 67
Hitachi L100 instruction manual Analog Input Settings
Page 66 Page 68

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.
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