ABB ret650, Руководство по применению

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Setting Values (Range) Description
CmdErrBk
(manually reset)
Alarm
Auto Block
Auto&Man Block
Typical operating time for a tap changer mechanism is
around 3-8 seconds. Therefore, the function should wait
for a position change before a new command is issued.
The command error signal, CMDERRAL on the
TCMYLTC or TCLYLTC function block, will be set if the
tap changer position does not change one step in the
correct direction within the time given by the setting
tTCTimeout in TCMYLTC or TCLYLTC function block.
The tap changer module TCMYLTC or TCLYLTC will then
indicate the error until a successful command has been
carried out or it has been reset by changing control mode
of TR1ATCC or TR8ATCC function to Manual and then
back to Automatic. The outputs CMDERRAL on
TCMYLTC or TCLYLTC and TOTBLK or AUTOBLK on
TR1ATCC or TR8ATCC will be activated depending on
the actual parameter setting.
This error condition can be reset by the input RESETERR
on TCMYLTC function block, or alternatively by changing
control mode of TR1ATCC or TR8ATCC function to
Manual and then back to Automatic.
TapChgBk
(manually reset
Alarm
Auto Block
Auto&Man Block
If the input TCINPROG of TCMYLTC or TCLYLTC
function block is connected to the tap changer
mechanism, then this blocking condition will be active if
the TCINPROG input has not reset when the tTCTimeout
timer has timed out. The output TCERRAL will be
activated depending on the actual parameter setting. In
correct operation the TCINPROG shall appear during the
URAISE/ULOWER output pulse and disappear before the
tTCTimeout time has elapsed.
This error condition can be reset by the input RESETERR
on TCMYLTC function block, or alternatively by changing
control mode of TR1ATCC or TR8ATCC function to
Manual and then back to Automatic.
Table continues on next page
Section 11
1MRK 504 169-UEN A
Control
216 Transformer protection RET650 2.2 IEC
Application manual