15.4.2 Functionality
When the Test mode functionality TESTMODE is activated, all the functions in the
IED are automatically blocked. 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.
15.4.3 Function block
TESTMODE
INPUT ACTIVE
OUTPUT
SETTING
NOEVENT
IEC09000219-1.vsd
IEC09000219 V1 EN
Figure 165: TESTMODE function block
15.4.4 Signals
Table 334: TESTMODE Input signals
Name
Type Default Description
INPUT BOOLEAN 0 Sets terminal in test mode when active
Table 335: TESTMODE Output signals
Name
Type Description
ACTIVE BOOLEAN IED in test mode when active
OUTPUT BOOLEAN Test input is active
SETTING BOOLEAN Test mode setting is (Enabled) or not (Disabled)
NOEVENT BOOLEAN Event disabled during testmode
Section 15 1MRK 505 277-UUS C
Basic IED functions
392
Technical Manual
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