Introduction iii
CONTENTS
SECTION 1 GENERAL INFORMATION ..........................................................................1-1
Description....................................................................................................1-1
Capabilities...................................................................................................1-1
Basic Stand-Alone Generator Version...................................................1-1
Basic Paralleled Generator Version.......................................................1-1
Optional Protective Functions................................................................1-1
Control Enables......................................................................................1-1
Watchdog Timer.....................................................................................1-1
Indicators ...............................................................................................1-2
Communications ....................................................................................1-2
Outputs.........................................................................................................1-2
Contact Ratings .....................................................................................1-2
Specifications ...............................................................................................1-2
Style Chart....................................................................................................1-6
Timing Overcurrent Characteristic Curves ................................................... 1-7
SECTION 2 HUMAN-MACHINE INTERFACE (CONTROLS AND INDICATORS).......... 2-1
Front Panel Display ...................................................................................... 2-1
Panel Connections .......................................................................................2-2
SECTION 3 FUNCTIONAL DESCRIPTION.....................................................................3-1
General ........................................................................................................3-1
Functional Description..................................................................................3-1
Switching Power Supply......................................................................... 3-1
Voltage Sensing And Conditioning.........................................................3-2
Frequency Sensing................................................................................3-2
Current Sensing And Conditioning......................................................... 3-2
Control (Pushbutton) Inputs...................................................................3-2
Hardware (Jumper) Inputs .....................................................................3-2
Analog To Digital Converter...................................................................3-2
Microprocessor ......................................................................................3-2
Output Relays ........................................................................................3-4
RS-232 Channel.....................................................................................3-4
LCD Display...........................................................................................3-4
Timing Functions....................................................................................3-4
Software .......................................................................................................3-4
Power-Up Initialization ........................................................................... 3-4
Relay Setup And Configuration..............................................................3-5
Remote RS232 Communications And Support .......................................... 3-13
Logon...................................................................................................3-13
Logoff...................................................................................................3-13
Programming........................................................................................3-13
Default Settings....................................................................................3-16
Optional Communications Software.....................................................3-16
Hardware Jumper Inputs ............................................................................3-17
Program Enable ................................................................................... 3-17
Fail-Safe Enable................................................................................... 3-17
Output Disable .....................................................................................3-17
Trip Reset ............................................................................................3-17
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