ABB RELION REF615R, Техническое руководство

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signals. The Blk signals CBBx setting defines the blocking signals that are related to the
CBB (rows in the matrix). The Shot number CBB1…CBB7 setting defines which shot is
related to the CBB (columns in the matrix). For example, CBB1 settings are:
• First reclose time = 1.0s
• Init signals CBB1 = 7 (three lowest bits: 000111 = 7)
• Blk signals CBB1 = 16 (the fifth bit: 010000 = 16)
• Shot number CBB1 = 1
CBB2 settings are:
• Second reclose time = 10s
• Init signals CBB2 = 6 (the second and third bits: 000110 = 6)
• Blk signals CBB2 = 16 (the fifth bit: 010000 = 16)
• Shot number CBB2 = 2
CBB3 settings are:
• Third reclose time = 30s
• Init signals CBB3 = 4 (the third bit: 000100 = 4)
• Blk signals CBB3 = 16 (the fifth bit: 010000 = 16)
• Shot number CBB3 = 3
CBB4 settings are:
• Fourth reclose time = 0.5s
• Init signals CBB4 = 8 (the fourth bit: 001000 = 8)
• Blk signals CBB4 = 0 (no blocking signals related to this CBB)
• Shot number CBB4 = 1
If a shot is initiated from the
INIT_1
line, only one shot is allowed before lockout. If a
shot is initiated from the
INIT_3
line, three shots are allowed before lockout.
A sequence initiation from the
INIT_4
line leads to a lockout after two shots. In a
situation where the initiation is made from both the
INIT_3
and
INIT_4
lines, a third
shot is allowed, that is, CBB3 is allowed to start. This is called conditional lockout. If the
initiation is made from the
INIT_2
and
INIT_3
lines, an immediate lockout occurs.
The
INIT_5
line is used for blocking purposes. If the
INIT_5
line is active during a
sequence start, the reclose attempt is blocked and the AR function goes to lockout.
When the reclose time of a CBB is set to zero, once its init line is active,
it immediately goes to lockout.
1MRS240050-IB C
Section 9
Control functions
REF615R 479
Technical Manual