Date Code 20090715 SEL-421 Relay
List of Tables
User’s Guide
Table 1.1 Application Highlights ..................................................................................................... U.1.11
Table 2.1 Recommended Control Input Pickup Settings ................................................................... U.2.5
Table 2.2 Required Settings for Use with AC Control Signals.......................................................... U.2.7
Table 2.3 I/O Interface Boards Control Inputs................................................................................. U.2.14
Table 2.4 I/O Interface Boards Control Outputs .............................................................................. U.2.15
Table 2.5 Main Board Jumpers ........................................................................................................ U.2.20
Table 2.6 Main Board Jumpers—JMP1, JMP2, and JMP3.............................................................. U.2.21
Table 2.7 I/O Board Jumpers ........................................................................................................... U.2.28
Table 2.8 Jumper Positions for Breaker OPEN/CLOSE Indication................................................. U.2.29
Table 2.9 Jumper Positions for Arc Suppression ............................................................................. U.2.29
Table 2.10 Front-Panel LED Option .................................................................................................. U.2.29
Table 2.11 Fuse Requirements for the SEL-421 Power Supply......................................................... U.2.39
Table 3.1 System Requirements for
ACSELERATOR QuickSet .......................................................... U.3.2
Table 3.2
ACSELERATOR QuickSet HMI Tree View Functions....................................................... U.3.22
Table 4.1 Power Supply Voltage Inputs ............................................................................................. U.4.3
Table 4.2 General Serial Port Settings ............................................................................................... U.4.6
Table 4.3 SEL-421 Access Levels...................................................................................................... U.4.7
Table 4.4 Access Level Commands and Passwords........................................................................... U.4.7
Table 4.5 Settings Classes and Instances ....................................................................................... U.4.15
Table 4.6 Actions at Settings Prompts ............................................................................................. U.4.16
Table 4.7 Actions at Text-Edit Mode Prompts................................................................................. U.4.19
Table 4.8 Control Inputs in the SEL-421 ......................................................................................... U.4.65
Table 4.9 SEL-421 Timekeeping Modes.......................................................................................... U.4.71
Table 4.10 Date/Time Last Update Sources....................................................................................... U.4.76
Table 4.11 Communications Port Commands That Clear Relay Buffers .......................................... U.4.80
Table 5.1 Front-Panel Inactivity Time-Out Setting............................................................................ U.5.4
Table 5.2 Metering Screens Enable Settings...................................................................................... U.5.5
Table 5.3 SER Point Settings ............................................................................................................. U.5.8
Table 5.4 Display Point Settings—Boolean..................................................................................... U.5.11
Table 5.5 Display Point Settings—Analog ...................................................................................... U.5.11
Table 5.6 Display Point Settings—Boolean and Analog Examples ................................................ U.5.11
Table 5.7 Front-Panel Pushbutton Functions While Viewing SER Events ...................................... U.5.20
Table 5.8 Local Bit Control Settings................................................................................................ U.5.26
Table 5.9 Local Bit SEL
OGIC ........................................................................................................... U.5.26
Table 5.10 Settings Available From the Front Panel.......................................................................... U.5.28
Table 5.11 Front-Panel Target LEDs.................................................................................................. U.5.37
Table 5.12 TIME Target LED Trigger Elements—Factory Defaults................................................. U.5.38
Table 5.13 Operator Control Pushbuttons and LEDs—Factory Defaults .......................................... U.5.41
Table 6.1 Acceptance Testing ............................................................................................................ U.6.2
Table 6.2 Commissioning Testing...................................................................................................... U.6.2
Table 6.3 Maintenance Testing .......................................................................................................... U.6.3
Table 6.4 UUT Database Entries for SEL-5401 Relay Test System Software—5 A Relay .............. U.6.7
Table 6.5 UUT Database Entries for SEL-5401 Relay Test System Software—1 A Relay .............. U.6.8
Table 6.6 Phase Instantaneous Overcurrent Pickup ......................................................................... U.6.14
Table 6.7 Selectable Operating Quantity Time-Overcurrent Element (51S1) Default Settings ...... U.6.21
Table 6.8 Negative-Sequence Directional Element Settings AUTO Calculations........................... U.6.32
Table 6.9 Troubleshooting Procedures............................................................................................. U.6.42
Table A.1 Firmware Revision History ...............................................................................................U.A.1
Table A.2 Ethernet Card Firmware Revision History........................................................................ U.A.8
Table A.3 Compatible SEL-421 and Ethernet Card Firmware Versions ........................................... U.A.9
Courtesy of NationalSwitchgear.com