Spare parts, Capacitor Life Curve, Years

6–10

Maintenance and Inspection

Troubleshooting and Maintenance

Spare parts

We recommend that you stock spare parts to reduce down time, which include:

Part description		Symbol	Quantity		Notes

			Used	Spare
			Used	Spare


Cooling fan	FAN		1	1	022NF, 037LF, 015HF to
					075HF

Case	CV		1	1	Front case
					Key cover
					Case
					Bottom cover

Capacitor Life Curve

The DC bus inside the inverter uses a large capacitor as shown in the diagram below. The capacitor handles high voltage and current as it smooths the power for use by the inverter. So, any degradation of the capacitor will affect the performance of the inverter.

Power		Variable-frequency Drive
Power
Input		High-voltage		Inverter
L1	Converter	High-voltage		Inverter
L1	Converter	DC Bus	+	Motor
		DC Bus	+	Motor
L2		+		U
	Rectifier			U
	Rectifier
L3				V
				W
			–

Capacitor life is reduced in higher ambient temperatures, as the graph below demon- strates. Be sure to keep the ambient temperature at acceptable levels, and perform maintenance inspections on the fan, heat sink, and other components. If the inverter is installed on a cabinet, the ambient temperature is the temperature inside the cabinet.

Ambient temperature, °C

Capacitor Life Curve

40						Operation for 12 hours / day
						Operation for 12 hours / day
30
20
10
0
-10									Years
1	2	3	4	5	6	7	8	9	Years
1	2	3	4	5	6	7	8	9	10

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 Spare parts, Capacitor Life Curve, Operation for 12 hours / day, Years

Models: L100

Spare parts

Part description

Symbol

Quantity

Used

Capacitor Life Curve

Operation for 12 hours / day

Years

L100 specifications