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DECS-250 Preface
Preface
This instruction manual provides information about the installation and operation of the DECS-250 Digital
Excitation Control System. To accomplish this, the following information is provided:
• General Information
• Human-machine interface
• Functional description
• Installation
• BESTCOMSPlus
®
software
• Setup
• Communication protocols
• Maintenance
• Specifications
• Expansion modules
Conventions Used in this Manual
Important safety and procedural information is emphasized and presented in this manual through
warning, caution, and note boxes. Each type is illustrated and defined as follows.
Warning!
Warning boxes call attention to conditions or actions that may cause
personal injury or death.
Caution boxes call attention to operating conditions that may lead to
equipment or property damage.
Note boxes emphasize important information pertaining to installation
or operation.
Be sure that the device is hard-wired to earth ground with no smaller
than 12 AWG (3.3 mm
2
) copper wire attached to the case ground
terminal. When the device is configured in a system with other
devices, a separate lead should be connected from the ground bus to
each device.
Current transformer (CT) grounding should be applied in accordance
with local codes and conventions.
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