Functionality - ABB Relion Technical Manual

Section 17
Basic IED functions
17.4.2
17.4.3
17.4.4
680

Functionality

When the Test mode functionality TESTMODE is activated, all the functions in the IED
are automatically blocked. Activated TESTMODE is indicating by a flashing yellow LED
on the local HMI. It is then possible to unblock every function(s) individually from the
local HMI to perform required tests.
When leaving TESTMODE, all blockings are removed and the IED resumes normal
operation. However, if during TESTMODE operation, power is removed and later
restored, the IED will remain in TESTMODE with the same protection functions blocked
or unblocked as before the power was removed. All testing will be done with actually set
and configured values within the IED. No settings will be changed, thus mistakes are
avoided.
Forcing of binary output signals is only possible when the IED is in test mode.
Function block
TESTMODE
INPUT ACTIVE
OUTPUT
SETTING
NOEVENT
IEC09000219-1.vsd
IEC09000219 V1 EN
Figure 304: TESTMODE function block
Signals
Table 502: TESTMODE Input signals
Name Type
INPUT BOOLEAN
Table 503: TESTMODE Output signals
Name Type
ACTIVE BOOLEAN
OUTPUT BOOLEAN
SETTING BOOLEAN
NOEVENT BOOLEAN
Default Description
0 Sets terminal in test mode when active
Description
IED in test mode when active
Test input is active
Test mode setting is (Enabled) or not (Disabled)
Event disabled during testmode
1MRK 502 048-UUS A
Technical manual