ABB REM630 - Control Functions; Motor Bay Control QCCBAY; Apparatus Control SCILO, GNRLCSWI, DAXCBR, DAXSWI

3.2.5 Control functions
3.2.5.1 Motor bay control QCCBAY
Bay control is used to handle the selection of the operator place per bay. It provides
blocking functions that can be distributed to different apparatuses within the bay.
Bay control sends information about the permitted source to operate (PSTO) and
blocking conditions to other functions within the bay, for example switch control
functions.
3.2.5.2 Apparatus control SCILO, GNRLCSWI, DAXCBR, DAXSWI
Apparatus control initializes and supervises proper selection and switches on
primary apparatus. Each apparatus requires interlocking function, switch control
function and apparatus functions.
Circuit-breaker control function
The circuit breaker is controlled by a combination of switch interlocking (SCILO),
switch controller (GNRLCSWI) and circuit breaker controller (DAXCBR) functions.
The open or close binary inputs of the circuit breaker and the truck are connected
to DAXCBR. The interlocking logics for the circuit breaker have been
programmed to open at any time, provided that the gas pressure inside the circuit
breaker is above the lockout limit. Closing of the circuit breaker is always
prevented if the gas pressure inside the circuit breaker is below the lockout limit or
the truck is in open condition or spring charge time is above the set limit.
SCILO function checks for the interlocking conditions and provides closing and
opening enable signals. The enable signal is used by GNRLCSWI function block
which checks for operator place selector before providing the final open or close
signal to DAXCBR function.
The open, closed and undefined states of the circuit breaker are indicated on the
LHMI.
Earth-switch control function
The earth switch is controlled by a combination of SCILO, GNRLCSWI and
DAXSWI functions.
The open or close status of the earth switch is connected to respective DAXSWI
via binary inputs. Earth switch interlocking depends on the circuit breaker and the
truck position. Opening and closing of the earth switch can be enabled at anytime
only if the circuit breaker and the truck are in open position.
Interlocking for earth switch is provided. However, the earth switch
is not controlled by the IED, and is considered to be operated
manually.
Section 3 1MRS756785 A
REM630 variants
28 REM630
Application Manual