Shaft are rotating and possesses angular momentum

L100 Inverter

A–5

Momentum	The physical property of a body in motion that causes it to continue
	to move in a straight line. In the case of motors, the armature and
	shaft are rotating and possesses angular momentum.
Multi-speed Operation	The ability of a motor drive to store preset discrete speed levels for
	the motor, and control motor speed according to the currently
	selected speed preset. The Hitachi inverters have 16 preset speeds.
Motor Load	In motor terminology, motor load consists of the inertia of the
	physical mass that is moved by the motor and the related friction
	from guiding mechanisms. See also inertia.
NEC	The National Electric Code is a regulatory document that governs
	electrical power and device wiring and installation in the United
	States.
NEMA	The National Electric Manufacturer’s Association. NEMA Codes
	are a published series of device ratings standards. Industry uses
	these to evaluate or compare the performance of devices made by
	various manufacturers to a known standard.
Power Factor	A ratio that expresses a phase difference (timing offset) between
	current and voltage supplied by a power source to a load. A perfect
	power factor = 1.0 (no phase offset). Power factors less than one
	cause some energy loss in power transmission wiring (source to
	load).
PID Loop	Proportional - Integral-Derivative - a mathematical model used for
	process control. A process controller maintains a process variable
	(PV) at a setpoint (SP) by using its PID algorithm to compensate for
	dynamic conditions and vary its output to drive the PV toward the
	desired value. For variable-frequency drives, the process variable is
	the motor speed. See also error.
Process Variable	A physical property of a process which is of interest because it
	affects the quality of the primary task accomplished by the process.
	For an industrial oven, temperature is the process variable. See also
	PID Loop and error.
PWM	Pulse-width modulation: A type of AC adjustable frequency drive
	that accomplishes frequency and voltage control at the output
	section(inverter) of the drive. The drive output voltage waveform is
	at a constant amplitude, and by "chopping" the waveform (pulse-
	width-modulating), the average voltage is controlled. The chopping
	frequency is sometimes called the carrier frequency.
Reactance	The impedance of inductors and capacitors has two components.
	The resistive part is constant, while the reactive part changes with
	applied frequency. These devices have a complex impedance
	(complex number), where the resistance is the real part and the
	reactance is the imaginary part.

Appendix A

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 Shaft are rotating and possesses angular momentum, States, Load

Models: L100

L100 Inverter

Momentum

shaft are rotating and possesses angular momentum.

Multi-speed Operation

the motor, and control motor speed according to the currently

Motor Load

In motor terminology, motor load consists of the inertia of the

from guiding mechanisms. See also inertia.

NEC

States.

NEMA

The National Electric Manufacturer’s Association. NEMA Codes

various manufacturers to a known standard.

Power Factor

load).

PID Loop

the motor speed. See also error.

Process Variable

PWM

at a constant amplitude, and by "chopping" the waveform (pulse-

frequency is sometimes called the carrier frequency.

Reactance

The impedance of inductors and capacitors has two components.

applied frequency. These devices have a complex impedance

(complex number), where the resistance is the real part and the

reactance is the imaginary part.

L100 specifications