Function Block - ABB Relion 650 Series Technical Manual

1MRK 511 424-UEN B
14.6.2
14.6.3
14.6.4
Bay control REC650 2.2 IEC
Technical manual
The change lock function activation is normally connected to a binary input.

Function block

CHNGLCK
LOCK*
OVERRIDE
IEC09000946.vsd
IEC09000946 V2 EN-US
Figure 275: CHNGLCK function block
Signals
Table 490: CHNGLCK Input signals
Name Type
LOCK BOOLEAN
Table 491: CHNGLCK Output signals
Name Type
ACTIVE BOOLEAN
OVERRIDE BOOLEAN
Operation principle
The Change lock function (CHNGLCK) is configured using ACT.
The function, when activated, will still allow the following changes of the IED
state that does not involve reconfiguring of the IED:
• Monitoring
• Reading events
• Resetting events
• Reading disturbance data
• Clear disturbances
• Reset LEDs
• Reset counters and other runtime component states
• Control operations
• Set system time
• Enter and exit from test mode
• Change of active setting group
ACTIVE
Default Description
0 Activate change lock
Description
Change lock active
Change lock override
Section 14
Security
GUID-15AA1D42-912E-4085-8166-33FDC327CEB5 v2
GUID-1B253577-C81B-40E3-B406-1F6586DCE545 v2
PID-3786-INPUTSIGNALS v6
PID-3786-OUTPUTSIGNALS v6
GUID-74581AA2-6EB4-4CFA-92DA-90FB89F9A62C v4
607