4–6

Using Intelligent Input Terminals

Using Intelligent Input Terminals

Terminals 1, 2, 3, 4, and 5 are identical, programmable inputs for general use. The input circuits can use the inverter’s internal (isolated) +24V field supply (P24) to power the inputs. The input circuits are internally connected to the power supply ground. As the diagram shows, you can use a switch (or jumper) to activate an input terminal which has been programmed. If you use an external supply, its GND terminal must connect to the “L” terminal on the inverter to complete the input circuit. We recommend using the top row “L” logic GND for login input circuits and the “L” GND on the bottom row of termi- nals for analog I/O circuits.

Inverter

 

24VDC

 

 

 

 

– +

 

 

 

 

 

 

 

 

 

Input circuits

 

 

L

5

4

3

2

1

P24

Operations and Monitoring

Forward Run/Stop and Reverse Run/Stop Commands:

When you input the Run command via the terminal [FW], the inverter executes the Forward Run command (high) or Stop command (low). When you input the Run command via the terminal [RV], the inverter executes the Reverse Run command (high) or Stop command (low).

Option

Terminal

Function Name

State

 

 

Description

 

 

 

 

 

Code

Symbol

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00

FW

Forward Run/Stop

ON

Inverter is in Run Mode, motor runs forward

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

Inverter is in Stop Mode, motor stops

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

01

RV

Reverse Run/Stop

ON

Inverter is in Run Mode, motor runs reverse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

Inverter is in Stop Mode, motor stops

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Valid for inputs:

C01, C02, C03, C04, C05

Example:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Required settings:

A02 = 01

 

 

 

 

 

 

RV

FW

Notes:

 

 

 

 

L

5

4

3

2

1

P24

 

When the Forward Run and Reverse Run

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

commands are active at the same time, the inverter

 

 

 

 

 

 

 

 

 

 

 

 

enters the Stop Mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

When a terminal associated with either [FW] or

 

 

 

 

 

 

 

 

 

 

 

 

[RV] function is configured for normally closed,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the motor starts rotation when that terminal is

See I/O specs on page 4–5.

 

 

 

 

 

disconnected or otherwise has no input voltage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WARNING: If the power is turned on and the Run command is already active, the motor starts rotation and is dangerous! Before turning power on, confirm that the Run command is not active.

Page 97
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Hitachi L100 Using Intelligent Input Terminals, Forward Run/Stop and Reverse Run/Stop Commands, Input circuits

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.