L100 Inverter

6–5

Monitoring Trip Events, History, & Conditions

Inverter Fault Detection

The microprocessor in the inverter detects a variety

 

 

of fault conditions and latches the event, recording

Run

it in a history table. The inverter output turns off, or

 

 

“trips” similar to the way a circuit breaker trips due

 

 

 

 

 

 

to an over-current condition. Most faults occur

Fault

when the motor is running (refer to the diagram to the right). However, the inverter could have an internal fault and trip in Stop Mode. In either case, you can clear the fault by pressing the Stop/Reset key.

STOP

RESET

Stop

RUN

STOP

RESET

Trip Fault

Troubleshooting and Maintenance

We recommend that you first find the cause of the fault before clearing it. When a fault occurs, the inverter stores important performance data at the moment of the fault. To access the data, use the monitor functions (Dxx) and select D08 for details about the present fault (En), or the error code for the past two trip events (En-1and En-2) using the D09 Trip History function. A listing of error codes is on the next page.

Monitor Menu

 

 

2

1

 

 

08

 

 

 

FUNC.

 

Error

No

Current Trip

 

Conditions

 

exists?

 

 

 

Yes

 

 

 

E09

 

Error Code

 

 

 

 

FUNC.

 

 

 

100

Output frequency

 

 

at trip point

 

FUNC.

 

 

 

025

 

Motor current

 

 

at trip point

 

FUNC.

 

 

 

898

DC bus voltage

 

 

at trip point

 

FUNC.

 

 

 

 

___ No error

 

 

 

FUNC.

 

2

1

 

 

 

D 01

 

 

 

2

D 09

2

 

 

 

 

FUNC.

 

 

 

Trip History

 

Error(n-

No

 

 

exists?

 

No

 

Yes

 

 

 

history

 

E03

Previous

___

 

error #1

 

FUNC.

 

FUNC.

 

Error(n-

No

 

 

exists?

 

No

 

Yes

 

 

 

history

 

 

 

 

E05

Previous

___

 

error #2

 

FUNC.

 

FUNC.

Page 129 Page 131
Page 130
Image 130
Hitachi L100 Monitoring Trip Events, History, & Conditions, Inverter Fault Detection, Previous Error #1, Previous Error #2
Page 129 Page 131

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.
Top Page Image Contents