Swicon - ABB REC 561 User Manual

1MRK 580 150-XEN
Page 6 - 20

3.2.3 SWICON

Apparatus control
For command supervision, COMCON has two time parameters. The
supervision checks the time between select and execute signals and
checks the response on a request for selection including reservation of
other bays. When any of them is incorrect, COMCON indicates this with
the LO_OP_T and RES_ERR outputs. Also, the CANCEL output gives a
signal (pulse) to reset the selected command in SWICON.
Parameters
T_LO_OP
Maximum time between a select and the execute command coming from
the operator. Also the maximum time between the request to override and
the following select.
T_RES
Allowed time (for BAYCON) to make the reservation.
SWICON handles basically two functions, indication and supervision of
operation. The indication inputs can either be three phase including the
pole discordance check (SWICONA and SWICONB) or the single phase
(SWICONC). The indication part checks the position indication informa-
tion and gives indications (OX, CX) on the results. The POSIND_V input
is used at external evaluations of the positions or at board error.
POSIND_V = True means valid positions. The result of (OX, CX) is (0, 0)
(for intermediate position or when POSIND_V = False). It also includes
the function for manual position updating. The position indication can be
set manually, and the updating from the process is stopped. Manual updat-
ing is indicated by MA_UPD_P.
The indication part has two timer parameters. The POS_ERR is activated
momentary at the intermediate position (1, 1) but is delayed the
T_POSERR time at the position (0, 0). The POL_DISC output is activated
when a pole discordance is detected and the T_POL timer expires.
SWICON has inputs and outputs for selection and execution. In case the
SWICON assumes the select-open or -close-before-execute principle (that
is, either OPEN or CLOSE is set), the SELx (SELECT) signal from BAY-
CON energizes the selection outputs of a given direction, SEL_OPEN or
SEL_CLOS. After it has received the FDB_SEL signal, it proceeds with
an EXECUTE command, which activates both EXE_OPEN and
EXE_CLOS.
In case of the select-before-execute-open or -close principle, SWICON
receives only a SELECT signal (that is, without the OPEN and CLOSE
directions). Now it activates both the SEL_OPEN and SEL_CLOS selec-
tion outputs. After receiving a FDB_SEL feedback select, it waits for the
ABB Network Partner AB
Version 1.0-00