TXP CLC Course
11
Operating Modes
Operating mode is selected based on the parameters “RMS”, “VBAF”, “MAUS”,
“REJ/MAN”, “OP_MODE“; the inputs “VOS”, AUTO”, “MAN”; and the operating
window buttons of the OM650.
The “SEMI” or semiautomatic mode is selected if the parameter “RMS” is set to
“TAG OUT NO”. For any other operating mode, the parameter “RMS” should be
set to “TAG OUT YES”.
The “VBAF” parameter allows a manual or automatic close command even if the
DCM block is in an alarm condition. The “REJ/MAN” parameter forces the
operating mode to manual if manual mode is allowed and the block is in alarm.
The “MAUS” parameter allows a changeover from manual to automatic either
from the operating window of the OM650 or from the “AUTO” or “MAN” logical
inputs to the DCM block.
The “OP_MODE” parameter selects between the three options shown below.
Once an operation mode is selected, the DCM block can only operate in the
modes named under “Selection”.
OP_MODE
Selection
Automatic
Commands
Manual
Commands
AUTO/MAN Manual
Automatic
Deactivated
Activated
Activated
Deactivated
SEMI/MAN Manual
Semi-automatic
Deactivated
Activated
Activated
Activated
SEMI Semi-automatic
Activated
Activated
Automatic activated means that automatic commands are effective and manual
commands are disabled; Semi means that manual and automatic commands are
effective; and Manual means that manual commands are functional and
automatic commands are disabled. The switchover and indication of the
operating modes “Automatic”, “Semi” or “Manual” is done via the operating
window of the OM 650 or in the logic. No distinction between the operating
modes “Automatic” and “Manual” can be made if the TAG-OUT function is not
activated with the parameter RMS.
The “VOS” input (local control) deactivates all manual, automatic or semi-
automatic commands and allows the feedback to change with local commands
without initiating alarm conditions. The protection commands are still active.
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