Wiring the Motor to the Inverter Output

2–16

Step-by-Step Basic Installation

Inverter Mounting	and Installation

Step 7: The process of motor selection is beyond the scope of this manual. However, it

7 must be an AC induction motor with three phases. It should also come with a chassis ground lug. If the motor does not have three power input leads, stop the installation and verify the motor type. Other guidelines for wiring the motor include:

•Use an inverter-grade motor for maximum motor life (1600V insulation).

•For standard motors, use the AC reactor accessory if the wiring between the inverter and motor exceeds 10 meters in length.

Simply connect the motor to the terminals indicated on the inverter to the right. The terminals are labeled U/T1, V/T2, and W/T3. This is a good time to connect the chassis ground lug on the drive as well. The motor chassis ground must also connect to the same point. Use a star ground (single-point) arrangement, and never daisy-chain the grounds (point-to-point).

Use the same wire gauge on the motor and chassis ground wiring as you used on the power input wiring in the previous step. After completing the wiring:

•	Replace the housing partition that covers
	access to the power connections.
•	Close the main door and secure the reten-
	tion screw firmly.
		To Motor	To Chassis
	To Power

Other Wiring - After the initial installation SupplyGround and powerup test, you may need to wire the

remaining connectors — the control signal connector, and the alarm circuit connector. This is covered in detail on page 4–22.

Step 8: After mounting and wiring the inverter,

8 it’s time to remove any covers from the inverter housing. This includes covers over the side ventilation ports. Remove the square cover panel at the top of the housing, unless the application must maintain a NEMA rating.

WARNING: Make sure the input power to the inverter is off. If the drive has been powered, leave it off for five minutes before continuing.

The top housing cover is held in place by four locking tabs. To remove the cover, squeeze two corners together and push a small screwdriver under one side as shown, while pulling upward. Hold the screwdriver at the angle shown, and DO NOT push the screwdriver or any object through ventilation openings and into the inverter.

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 Wiring the Motor to the Inverter Output

Models: L100

Inverter Mounting

Wiring the Motor to the Inverter Output

L100 specifications