FUJI ELECTRIC JOURNAL November/2004 (Vol.77-No.6)

TOP PAGE 1. Information and Control Systems
2. Uninterruptible Power Supplies (UPS)

Trends and Prospects of Information and Control Systems
Shin Hashimoto, Chihiro Nakajima, Junichi Kuroe
During a time of sluggish economic growth and increasing globalization of production, minimization of cost throughout a plant's lifecycle is a key requirement of information and control systems. The new MICREX-NX information and control system is designed to integrate information from the administrative through field levels, and also to provide vertical and horizontal integration that integrates control and management from upstream to downstream manufacturing processes. Additional features such as an integrated engineering environment, high reliability, high maintainability, compatibility with prior models, and compliance with international standards enable the inheritance and refinement of user resources and technical know-how.

The New MICREX-NX Information and Control System
Satoshi Sakai, Kouichi Sakagami, Tetsuo Suzuki
The newly developed MICREX-NX information and control system is a highly flexible DCS (distributed control system) that utilizes open system hardware and advanced software to provide vertical integration from the field level to the MES (manufacturing execution system) level, and can be used for various applications, such as developing horizontally integrated business solutions suitable for the FA (factory automation) field. This paper introduces the MICREX-NX system architecture, its constituent elements and technologies.

Advanced Information and Control Software Packages of the MICREX-NX
Takashi Ikeda, Masato Nakano
This paper introduces the following advanced information and control software packages for the MICREX-NX: the SIMATIC PDM (process device manager) for maintenance of field devices, the SIMATIC BATCH for batch systems and the SIMATIC ROUTE CONTROL for materials transport. These packages provide vertical and horizontal integration within an integrated engineering environment.

Migration Scenario for the MICREX-NX
Takao Yamada, Fumihiko Fujita
MICREX-NX is a new DCS (distributed control system) that will form the core of Fuji Electric's PAS (process automation system) business. Because most PAS business involves the updating or replacing of a customer's existing system, it is important that this MICREX-NX is able to inherit smoothly a customer's resources. The underlying concept of migration is to make the maximum effective use of the customer's existing DCS resources and to provide an easy method for updating or replacing portions of the customer's existing system while benefiting from the merits of the new MICREX-NX. This paper describes the MICREX-NX migration method for updating or replacing a portion of the customer's existing system while inheriting the functions of that system.

Engineering Support Tools for the MICREX-NX
Yoshitomo Takeuchi, Keisho Yamano, Takashige Mori
Engineering support tools for the MICREX-NX are provided to achieve highly efficient and high quality realizations of increasingly sophisticated and complex process automation systems. Provided with a diversity of options, these support tools are used to generate a database of integrated engineering data and to provide an environment in which debugging and reuse of resources can be accomplished with ease.

Cabinet Mounting of the MICREX-NX
Hitoshi Ichinohe, Tetsuji Shio, Hiroyasu Ikedo
For security, environmental and safety reasons, the controller is mounted inside a cabinet and devices and equipment are controlled individually. In the development of the MICREX-NX cabinet, many design problems relating to temperature, safety and high-density were solved. Especially, a big problem was "Agreement to EMC restriction", and "Design of the small conversion cable to convert the Euro terminal into the Japanese type screw terminal." As a result of the heat design that based on the above, the cabinet of MICREX-NX has achieved all the cooling methods such as the air cooling with flows (suction and exhaust) and the air cooling without blowers and sealed cooling.

Package Software and Engineering of the EGFMAC-SIRIUS Small and Medium-scale Monitoring and Control Systems
Shougo Kuroda, Shigehiro Habara, Shinichi Ito
This paper presents a system overview and describes features of the EGFMAC-SIRIUS small and medium-scale monitoring and control system, which is easily configured with a PC and general-purpose programmable controller. Functions of the various software packages are also described, including the standard monitoring package, power monitoring and control package, and the instrumentation monitoring and control package, as well as simple design methods based on engineering sheets, and the automated object generation function that supports by automation of the engineering of plant drawings, which formally was a manual design process.

Hybrid Ultrasonic Flow Meter
Hironobu Yao, Noritomo Hirayama, Yoshinori Ohmuro
Fuji Electric has developed the world's first hybrid ultrasonic flow meter, which combines both UVP (ultrasonic-doppler velocity profile) and transit time methods. In this product, a pair of clamp-on ultrasonic transducers mounted opposite to each other on a pipe surface measure the flow rate by means of a function that automatically switches the measurement method according to conditions of the measurement liquid, such as velocity or bubble content. The UVP method measures diametric velocity profiles in real time. This method enables accurate flow rate measurement without any correction coefficients.

PXH Digital Controller
Hideyuki Konishi
Fuji Electric has developed the PXH high-performance digital controller. The PXH controller is suitable for a wide range of control applications, ranging from temperature control, which requires ever-faster speeds and higher precision, to process control, which requires high performance. The functionality of a process controller and ease-of-use of a common temperature controller have been realized within a compact body size of 96 (H) 96 (W) 81.5 (D) mm.

Design and Manufacturing Technology which Improves Information, Instrumentation and Control Technology
Junichi Machida, Kouji Sakata, Yutaka Tachibana
The recent trends of cellular phones, digital cameras and other electronic devices toward miniaturization and greater functionality have also spread to the field of control devices. Fuji Electric has developed a high density, miniature module known as the IMM (intelligent micro module) that incorporates fine wire technology on a silicon substrate and is equipped with general-purpose chips. Supporting the manufacture of a wide variety of products in small quantities, the IMM is poised to improve the design and manufacture of future information, instrumentation and control technology.

Fast-response and High-precision Control Design Technique
Atsushi Yoshida, Takayuki Kaneko, Hiromu Hirai
A robust 2-degrees-of-freedom (2DOF) controller based on coprime factorization is designed for a highly responsive, high-precision positioning system. To compensate for the effects of nonlinear friction, a disturbance observer and torque feedforward compensation are both adopted. The effectiveness of the proposed controller has been verified by experiments using test equipment.

Fuji's Mini-UPS "GX Series"
Hideomi Naito, Yasuhiro Okuma, Hiroyuki Matsuo
In recent years, the demand for uninterruptible power supplies (UPS) has been increasing with the rapid development of computer systems. Such a UPS is required to provide a high level of performance and functionality and to be highly efficient. In response to these circumstances, Fuji Electric has completed the development and commercial production of a new UPS model known as the GX series which incorporates a new circuit topology. This paper describes the features, product specifications and operation of the GX series.

Redundant Mini-UPS "RX Series"
Yoshihiko Yamagata, Keiji Hashimoto, Nobuyuki Kobayashi
With the rapid development of IT technology, the stable operation of information networks is becoming increasingly crucial. Accordingly, high reliability is increasingly being demanded of the UPSs (uninterruptible power supplies) used as the power supplies for these networks. Recently, the demand for high-efficiency UPSs has rapidly increased as environmental awareness has risen. Fuji Electric has commercialized a new UPS that uses redundancy to achieve high reliability and uses a dual-conversion method to achieve high efficiency and performance. This paper introduces the specifications and features of this new series of UPSs.

UPS8000 Series of Large Capacity Uninterruptible Power Supplies
Jun Hirose, Makoto Yatsu, Sachio Fukuda
As awareness of global environmental issues has heightened in recent years, the need for higher efficiency of uninterruptible power supplies (UPSs) has also increased. In response, Fuji Electric has developed a new dual-processing UPS, exhibiting high efficiency of 98% (comparable to the efficiency rating of a standby power system), provided with an input harmonic compensation function, an output voltage stabilizing function and a function for uninterrupted operation during a power outage, and realizing I/O characteristics equivalent to those of an online power system. This paper introduces the features, specifications, series and constituent technologies of Fuji's high efficiency, large capacity UPS8000 series that uses dual processing.

UPS Applied Power Supplies
Yasushi Motoki, Kazuyoshi Kurashima, Toshihiro Kishi
The UPS (Uninterruptible Power Supply) and SPS (standby power supply) basic elemental technologies of (1) high-frequency PWM technology, (2) technology for instantaneous voltage control during autonomous operation, (3) parallel operation control technology, and (4) technology for instantaneous active/ reactive power control during gridconnected operation have been applied to the field of electric power applications. One resultant device is a single 1,500 kVA wind-power output smoothing apparatus combined with a secondary battery (system capacity of 6,000 kVA) and the other is a single 1,500 kVA frequency converter (system capacity of 3,000 kVA). Examples of application to two large capacity converters are described.

DC Power Supply that Applies Uninterruptive Technology
Nobuhiro Hotaka, Kunihiko Karube
In the telecommunications and factory automation fields, it is unacceptable for a power outage to cause a system to become inoperable. A system can become inoperable due to power outage of the input AC line or malfunction of the power supply itself. This paper introduces a novel uninterruptible power supply that has been developed and commercialized by Fuji Electric. In this uninterruptible power supply, the DC supply that powers the system is backed up directly by a battery to prevent outage in the case of a failure of input power. Also described is parallel redundant technology that combines multiple DC power supplies in order to prevent interruption of the power supply in the case of a DC power supply malfunction.

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