Toshiba 2000 user manual Installation Grounding connection between base

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Chapter 2 Installation

(2) Grounding connection between base

PS

Basic unit

FG

PS

Expansion unit

PS

Expansion unit

Board internal ground terminal

Dedicated ground

Connect the FG terminal of the power supply module to the unit mounting screw, and to the ground bar in the panel by 2mm2 or larger wire in shortest possible

distance.

Use a dedicated ground for the control circuit, and keep the ground cable away from that for high-power systems.

100Ω or less to earth is recommended.

(3)Line Filter ground (LG) terminal

The LG terminal is a neutral point of the primary power supply line filter. It can suppress the effect caused by the noise from power supply line, by grounding the LG terminal.

Therefore, normally, ground the LG terminal together with the FG terminal. However, depending on the power system, leakage current to the ground from the LG may cause problems. In this case, install an isolated transformer in the power line, or open the LG terminal. If the unit is installed in isolation, open the LG terminal.

Do not connect the LG and FG terminals without grounding them.

(4) Frame ground (FG) terminal

The FG terminal is a protective ground point of the model 2000. The FG terminal voltage is equalized to that of the base. For safety, ground them at single-point in order to minimize the risk of electrical shock.

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Computer module C2PU37 User’s Manual

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Contents Integrated Controller Vseries Important Information Safety Precautions Markings used on the model 2000 and in this Manual Precautions on Installation Precautions on Wiring Precautions for Operation Safety Precautions on Maintenance and Inspection Safety Precautions on Replacing Components Safety Precautions in Daily Operation Safety Precautions on Disposal Limitation of Applications Preface Related Manuals Procedure flow Notational convention Guide to Reading this Manual Functions and Features Excellent system performanceContents Hardware Setup・・・・・・・・・・・・・・・・・・・・・・・・・・・・・39 Before Turning On the Power Checking the Content of the PackageName and Function of Each Part DIP-SWName and Function of Each Part RST Installation Requirements EMCComputer module C2PU37 User’s Manual Power Requirements 24VDCPrecautions when using When turning Off the PowerDaily use About the Hard Disk DriveDaily Cleanup and Storage/Transportation Radio Wave/Power Voltage InterferenceRepair and Service About the External FDDBattery disposal Disposal Module disposalInstallation ProcedureBefore Getting Started Installing Bases Precautions when Installing in the CaseModule Installation Grounding Grounding TipsGrounding method Installation Grounding connection between base Wiring of the power supply Wiring of the power supply 6E8C1111 Connector Connection Power On and Power Off Turning On the PowerTurning Off the Power HandlingPower Off with Windows Power Supply module PS694 with Battery6F8C1111 Power Supply module PS691 with UPS I/F UPSAbout the Hard Disk Hard Disk HandlingAbout the External FDD Floppy Disk HandlingTo enable write Write Protecting a Floppy DiskAbout the PC Card Installation Removal Maintenance Daily InspectionPeriodic Maintenance Replacement Timing of Major Parts CRTHow to Remove the HDD pack Replacing the Hard Disk DriveIntalling the HDD pack RAS Function RAS Function Overview RAS HardwareRAS Support Software WDT Circuit and Hardware Reset Interrupt SignalsHardware Processing RAS Functions RAS MemoryNMI events MI eventsHardware Setup Setting the Bios Xxxxxx KB Boot Main Advanced Power does not turn on An error message appearsAppendix a Q&A No character is entered when a key is pressed Screen display is improperMouse does not work Operating system does not startApplication program cannot be used Floppy disk drive cannot be usedFloppy disk cannot be used If the problem is still not solved Television and radio interference appearsCase of trouble or malfunction Appendix B Device Specifications SpecificationsModels Interface Specifications RGB InterfaceSerial Interface RS-232C Keyboard and Mouse Interface USB InterfaceEthernet Interface FDD Interface Pcmcia card slot Page 6F8C1111
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