Reset Inverter

time

Alarm output

approx. 30 ms

[RS] terminal

12 ms minimum

4–16

Using Intelligent Input Terminals

The [RS] terminal causes the inverter to execute the reset operation. If the inverter is in Trip Mode, the reset cancels the Trip state.

When the switch between the set terminals [RS] and [P24] is turned on and off, the inverter executes the reset operation. The

input timing requirement for [RST] needs a

12 ms pulse width or greater. The alarm output will be cleared within 30 ms after the onset of the Reset command.

WARNING: After the Reset command is given and the alarm reset occurs, the motor will restart suddenly if the Run command is already active. Be sure to set the alarm reset after verifying that the Run command is off to prevent injury to personnel.

Operations and Monitoring

Option

Terminal

Function Name

Input

Description

Code

Symbol

State

Reset Inverter

The motor output is turned off, the Trip Mode is

cleared (if it exists), and powerup reset is applied

OFF

Normal power-on operation

Valid for inputs:

C01, C02, C03, C04, C05

Example:

Required settings:

(none)

Notes:

P24

•When the control terminal [RS] input is already On

	at powerup for more than 4 seconds, the remote
	operator display is “R-ERROR COMM<2>” (the
	display of the digital operator [OPE-J] is – – –.
	However, the inverter has no error. To clear the
	digital operator error, turn off the terminal [RS]	See I/O specs on page 4–5.
	input and press one of the operator keys.	See I/O specs on page 4–5.
	input and press one of the operator keys.

•When the [RS] terminal is turned off from on, the Reset command is active.

•The Stop/Reset key of the digital operator is valid only when an alarm occurs.

•Only the normally open contact can be set for a terminal configured with the [RS] function. The terminal cannot be used in the normally closed contact state.

•Even when power is turned off or on, the function of the terminal is the same as that of the reset terminal.

•The Stop/Reset key on the inverter is only operational for a few seconds after inverter powerup when a hand-held remote operator is connected to the inverter.

•If the [RS] terminal is turned on while the motor is running, the motor will be free running (coasting).

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.

Hitachi L100 instruction manual Reset Inverter

Models: L100

Reset Inverter

Operations and Monitoring

Option

Required settings:

L100 specifications