HITACHI frequency converter Cs-H100 series

HITACHI frequency converter Cs-H100 series

1. Overview

The Hitachi Cs-H100 series frequency converter is a high-performance universal frequency converter designed for the global industrial market, aimed at providing precise and reliable speed and torque control for three-phase asynchronous motors and synchronous motors. This series of products is designed to be compact and powerful, covering not only basic V/F control to high-performance sensorless vector control, but also integrating rich application functions such as built-in PID, simple PLC, swing frequency control, and master-slave control, which can meet the diverse needs of general loads such as fans and water pumps, as well as complex processes such as textile and lifting.

2、 Core specifications and technical features

2.1 Product specifications and models

The Cs-H100 series covers a wide power range to meet the needs of different loads. According to the power specifications, it is mainly divided into two categories:

Single phase 220V model (CsH100- □□□ SF): power range from 0.4kW to 4.0kW, suitable for low-power civilian or commercial applications.

Three phase 380V model (CsH100- □□□ HF (S)): with a power range of 0.75kW to 22kW, it is the main model for industrial applications.

The naming of the product model clearly identifies the voltage level, power, and series. For example, CsH100-022SF represents a single-phase 220V, 2.2kW frequency converter.

2.2 Control mode and performance

The core of Cs-H100 lies in its flexible control mode selection, which is set through parameter [F0-03: Control Mode]:

V/F control: Suitable for situations where dynamic response requirements are not high, such as fans and pumps. By setting the multi-point V/F curve 【 F2-00 】 and torque boosting 【 F2-01 】 function, the torque output of the motor can be optimized at different frequencies.

Speed sensorless vector control: This is the highlight feature of Cs-H100, which achieves high-performance control of motor speed and torque without the need for an encoder through an accurate motor parameter model. It has excellent speed dynamic response and low-frequency torque characteristics, especially suitable for applications such as lifting, hoisting, high-precision machining machinery with severe load changes or requiring high starting torque.

2.3 Environmental Requirements and Installation

To ensure the long-term stable operation of the frequency converter, the manual imposes strict requirements on the installation environment:

Environmental temperature: The operating temperature range is -10 ℃ to+50 ℃. When the temperature exceeds 40 ℃, the frequency converter must be downgraded or the carrier frequency must be reduced [F0-26].

Installation space: The frequency converter must be installed vertically on a non combustible metal wall, and ensure that there is a heat dissipation space of more than 10cm in all directions. When installing multiple frequency converters up and down, it is necessary to install insulation deflectors to prevent heat accumulation.

Altitude: It can be fully used below an altitude of 1000 meters. After exceeding 1000 meters, the quota must be reduced by 1% for every 100 meters increase. The maximum usage altitude should not exceed 2000 meters.

3、 Installation, wiring, and electrical design

3.1 Safety first wiring principle

In the "About Wiring" section of the manual, prominent "Danger" and "Caution" labels are used to emphasize the core position of safe operation:

Power off operation: Wiring work can only be carried out after confirming that the input power is completely cut off.

Reliable grounding: It must be reliably grounded as required to prevent electric shock and fire.

Professional operation: Wiring operations must be carried out by qualified electrical professionals.

Correct connection: It is strictly prohibited to connect the power cord to the output terminals (U, V, W) of the frequency converter, and ensure that the power supply voltage is within the specified input voltage range.

3.2 Detailed explanation of main circuit and control circuit

The manual provides detailed instructions on the terminal layout and functions of different power range models.

Main circuit terminal:

R. S, T (L, N): Main power input terminal.

U. V, W: Output terminal of frequency converter, connected to motor.

P (+), PB: External braking resistor connection terminal. The manual provides a detailed selection table for braking resistors and warns that the selected resistor value must not be less than the minimum value in the table, otherwise it may damage the built-in braking unit.

P(+), (-): External brake unit connection terminal.

G: Grounding terminal.

Control circuit terminal:

Digital Input (DI): Supports multifunctional input and can allocate 53 different functions such as forward and reverse rotation, multi-stage speed, fault reset, etc. [F5-00~F5-05]. Models of 11kW and above support switching between NPN/PNP bipolar inputs.

Analog Input (AI): Supports 0~10V voltage or 0~20mA current input, and can be flexibly configured as a 2-point straight line or multi-point curve through jumper wires and parameters [F5-45] to adapt to different sensor signals.