ABB Relion 650 Series Technical Manual page 561

1MRK 506 326-UUS B
• configuration, activating the input signal of the function block TESTMODE.
• setting
1:TESTMODE.
While the IED is in test mode, the ACTIVE output of the function block TESTMODE is activated. The
other outputs of the function block TESTMODE shows the generator of the "Test mode:
state — input from configuration (OUTPUT output is activated) or setting from local HMI
(SETTING output is activated).
While the IED is in test mode, the yellow PICKUP LED will flash and all functions are blocked. Any
function can be unblocked individually regarding functionality and event signalling.
Forcing of binary output signals is only possible when the IED is in test mode.
Most of the functions in the IED can individually be blocked by means of settings from the local
HMI. To enable these blockings the IED must be set in test mode (output ACTIVE is activated).
When leaving the test mode, that is entering normal mode, these blockings are disabled and
everything is set to normal operation. All testing will be done with actually set and configured
values within the IED. No settings will be changed, thus no mistakes are possible.
The blocked functions will still be blocked next time entering the test mode, if the blockings were
not reset.
The blocking of a function concerns all output signals from the actual function, so no outputs will
be activated.
The TESTMODE function block might be used to automatically block functions when a test handle
is inserted in a test switch. A contact in the test switch (RTXP24 contact 29-30) or an FT switch
finger can supply a binary input which in turn is configured to the TESTMODE function block.
Each of the protection functions includes the blocking from the TESTMODE function block.
The functions can also be blocked from sending events over IEC 61850 station bus to prevent
filling station and SCADA databases with test events, for example during a maintenance test.
16.6 Change lock function CHNGLCK
16.6.1 Identification
Function description
Change lock function
Line distance protection REL650
Technical manual
TestMode to Enabled in the local HMI, under Main menu/Tests/IED test mode/
When a binary input is used to set the IED in test mode and a parameter, that
requires restart of the application, is changed, the IED will re-enter test mode and
all functions will be blocked, also functions that were unblocked before the change.
During the re-entering to test mode, all functions will be temporarily unblocked for
a short time, which might lead to unwanted operations. This is only valid if the IED
is put in TEST mode by a binary input, not by local HMI.
IEC 61850
identification
CHNGLCK
© Copyright 2011 ABB Power Grids. All rights reserved
IEC 60617 ANSI/IEEE C37.2
identification device number
- -
Section 16
Basic IED functions
Enabled "
M11828-3 v4
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