Schweitzer Engineering Laboratories SEL-321 - Page 347

Date Code 20011203 Firmware Versions A-15
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:
- Block the OSTD timer output latch if EOOST=N.
- New factory setting for pickup delay in the DCB Zone 3
extension logic.
- Hide PASSWORD when entering new access level.
- Targets are retained after loss of power.
SEL-321-1-R411 60 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R461 50 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R511 60 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R561 50 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R612 60 Hz, 5 Amp, 1 I/O Board, ACB rotation
SEL-321-1-R712 60 Hz, 5 Amp, 2 I/O Boards, ACB rotation
SEL-321-1-R811 60 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R861 50 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R911 60 Hz, 1 Amp, 2 I/O Boards
SEL-321-1-R962 50 Hz, 1 Amp, 2 I/O Boards
This firmware differs from previous versions as follows:
- Used PT input instead of PTRX in POTT logic.
- Targeting modification to target on all rising edges of trip.
- Direct transfer tripping allowed with supervision of pole
open.
- Hide FAST_OP port setting when PROTOCOL=R.
SEL-321-1-R410 60 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R460 50 Hz, 5 Amp, 1 I/O Board
SEL-321-1-R510 60 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R560 50 Hz, 5 Amp, 2 I/O Boards
SEL-321-1-R611 60 Hz, 5 Amp, 1 I/O Board, ACB rotation
SEL-321-1-R711 60 Hz, 5 Amp, 2 I/O Boards, ACB rotation
SEL-321-1-R810 60 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R860 50 Hz, 1 Amp, 1 I/O Board
SEL-321-1-R910 60 Hz, 1 Amp, 2 I/O Boards
SEL-321-1-R961 50 Hz, 1 Amp, 2 I/O Boards