Section 5 1MAC309294-MB F
Control functions
292 RER620
Technical Manual
setting is “63”, which means that all initiation signals activate the OPEN_CB output. The
lowest bit in the Tripping line setting corresponds to the INIT_1 input, the highest bit to
the INIT_6 line.
Shot initiation
Figure 149: Example of an autoreclose program with a reclose scheme matrix
In the AR function, each shot can be programmed to locate anywhere in the reclose scheme
matrix. The shots are like building blocks used to design the reclose program. The building
blocks are called CBBs. All blocks are alike and have settings which give the 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
INIT_1
1st 2nd 3rd 4th 5th
INIT_2
DEL_INIT_2
Pre-lockout
(final trip)
INIT_3
DEL_INIT_3
INIT_4
DEL_INIT_4
INIT_5
INIT_6 NOT USED
shot pointer
Cycle Building Block, initiate shot
Drive to lockout
Drive to lockout
Drive to lockout
Drive to lockout
Drive to lockout
CBB1
CBB
CBB2
CBB3
CBB4
CBB5
CBB1 CBB2 CBB3
Conditional Drive to lockout
Cycle Building Block, block shot initiation
1 2 3 4 5 6 7
L
O
C
K
O
U
T
Initiation signal
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