ABB RELION 620 Series Technical Manual page 726

Section 9
Control functions
720
attempt number (columns in the matrix), the initiation or blocking signals (rows in the
matrix) and the reclose time of the shot.
The settings related to CBB configuration are:
• First...Seventh reclose time
• Init signals CBB1...CBB7
• Blk signals CBB1...CBB7
• Shot number CBB1...CBB7
The reclose time defines the open and dead times, that is, the time between the OPEN_CB
and the CLOSE_CB commands. The Init signals CBBx setting defines the initiation
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.
1MAC504801-IB E
620 series ANSI
Technical Manual