Date Code 20011203 Firmware Versions A-9
SEL-321/321-1 Instruction Manual
Firmware
Part/Revision No.
SEL-321-1 Relay Version
Description of Firmware
Revision B or C Main Board and Low-Level
Test Capability (ET3 or TT3):
This firmware differs from previous versions as
follows:
- Increased Z1ANG, Z0ANG, k01A, and k0A
setting ranges.
- New LOP logic and IEC 1000-4-5 compliance.
- Improved M
IRRORED BITS™ communications.
- Improved Fast Meter communications.
SEL-321-1-R424-Z001001-D20000721 60 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R474-Z001001-D20000721 50 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R525-Z001001-D20000721 60 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R574-Z001001-D20000721 50 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R625-Z001001-D20000721 60 Hz, 5 Amp, 1 I/O Board, ACB rotation
SEL-321-1-R655-Z001001-D20000721 60 Hz, 1 Amp, 1 I/O Board, ACB rotation
SEL-321-1-R725-Z001001-D20000721 60 Hz, 5 Amp, 2 I/O Boards, ACB rotation
SEL-321-1-R755-Z001001-D20000721 60 Hz, 1 Amp, 2 I/O Boards, ACB rotation
SEL-321-1-R824-Z001001-D20000721 60 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R874-Z001001-D20000721 50 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R924-Z001001-D20000721 60 Hz, 1 Amp, 2 I/O Boards
SEL-321-1-R975-Z001001-D20000721 50 Hz, 1 Amp, 2 I/O Boards
This firmware differs from previous versions as
follows:
- Improved Fast Meter communications.
- Improved M
IRRORED BITS communications.
SEL-321-1-R423-D991020 60 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R473-D991020 50 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R523-D991020 60 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R573-D991020 50 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R624-D991020 60 Hz, 5 Amp, 1 I/O Board, ACB rotation
SEL-321-1-R654-D991020 60 Hz, 1 Amp, 1 I/O Board, ACB rotation
SEL-321-1-R724-D991020 60 Hz, 5 Amp, 2 I/O Boards, ACB rotation
SEL-321-1-R754-D991020 60 Hz, 1 Amp, 2 I/O Boards, ACB rotation
SEL-321-1-R823-D991020 60 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R873-D991020 50 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R923-D991020 60 Hz, 1 Amp, 2 I/O Boards
SEL-321-1-R974-D991020 50 Hz, 1 Amp, 2 I/O Boards
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