Schweitzer Engineering Laboratories SEL-421-4 - Page 731

A.11
Date Code 20171021 Instruction Manual SEL-421 Relay
Firmware, ICD File, and Manual Versions
Instruction Manual
20170810
Appendix A
➤ Updated for firmware version R322-V2.
20170525
Appendix A
➤ Updated for firmware version R322-V1.
20170428
Cover
➤ Updated copyright information.
Section 1
➤ Updated Specifications.
Section 2
➤ Updated Figure 2.39: SEL-2243 Power Coupler.
20170327
Section 1
➤ Updated Specifications.
➤ Modified the range of the resistance reach for quadrilateral phase-distance elements and quadrilateral ground-
distance elements.
➤ Modified the range of the blinders (R1) for the conventional out-of-step elements.
Section 2
➤ Removed Figure 2.20: IRIG-B Terminating Resistors and the IRIG-B Jumper section.
➤ Added TiDL Connections.
Section 5
➤ Added AUTO2 to Table 5.32: Ground Directional Element Settings.
➤ Modified the range of the blinders (R1) for the conventional out-of-step elements in Table 5.45: OOS Logic
Relay Settings.
➤ Modified the range of the resistance reach for quadrilateral ground-distance elements in Table 5.51: Quadrilat-
eral Ground-Distance Element Settings.
➤ Modified the range of the resistance reach for quadrilateral phase-distance elements in Table 5.56 Quadrilateral
Phase-Distance Element Settings.
Section 6
➤ Modified the range of the resistance reach for the quadrilateral distance elements in the examples.
➤ Modified the range of the blinders (R1) for the conventional out-of-step elements.
Section 7
➤ Updated Table 7.8: Event Report Nonvolatile Storage Capability when ERDIG=S.
➤ Added Table 7.9: Event Report Nonvolatile Storage Capability when ERDIG=A.
Section 8
➤ Added AUTO2 to Table 8.36: Relay Configuration.
➤ Updated ranges for RP4 and RP5 in Table 8.38: Quadrilateral Phase-Distance Element Reach.
➤ Updated ranges for RG4 and RG5 in Table 8.41: Quad Ground-Distance Element Reach.
➤ Updated ranges for X1T7, R1R7, R1R6, X1B7, X1B6, R1L7, and R1L6 in Table 8.47: Out-of-Step Tripping/
Blocking.
➤ Updated default values in Table 8.65: Directional Control Element.
Section 9
➤ Added CFG CTNOM and CFG NFREQ to Table 9.1: SEL-421 List of Commands.
Section 11
➤ Updated Table 11.1: Alphabetical List of Relay Word Bits.
➤ Updated Table 11.2: Row List of Relay Word Bits.
Section 12
➤ Updated Table 12.2: Analog Quantities Sorted by Function.
Appendix A
➤ Updated Table A.1: Firmware Revision History and Table A.3: ICD File Revision History.
Table A.4 Instruction Manual Revision History (Sheet 2 of 3)
Date Code Summary of Revisions