17.4.5 SettingsTable 504:TESTMODE Non group settings (basic)Name Values (Range) Unit Step Default DescriptionTestMode DisabledEnabled- - Disabled Test mode in operation (Enabled) or not(Disabled)EventDisable DisabledEnabled- - Disabled Event disable during testmodeCmdTestBit DisabledEnabled- - Disabled Command bit for test required or not duringtestmode17.4.6 Operation principlePut the IED into test mode to test functions in the IED. Set the IED in test mode by• configuration, activating the input SIGNAL on the function block TESTMODE.• setting TestMode to Enabled in the local HMI, under Main menu/Tests/IED testmode/1:TESTMODE.While the IED is in test mode, the output ACTIVE of the function block TESTMODE isactivated. The other outputs of the function block TESTMODE shows the cause of the"Test mode: Enabled" state — input from configuration (OUTPUT signal is activated) orsetting from local HMI (SETTING signal is activated).While the IED is in test mode, the yellow PICKUP LED will flash and all functions areblocked. Any function can be unblocked individually regarding functionality and eventsignalling.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 thelocal HMI. To enable these blockings the IED must be set in test mode (output ACTIVEis activated). When leaving the test mode, and returning to normal operation, theseblockings are disabled and everything is set back to normal operation. All testing will bedone with actually set and configured parameter values within the IED. No settings willbe changed, thus no mistakes are possible.The blocked functions will still be blocked next time entering the test mode, if theblockings were not reset. The released function will return to blocked state if test mode isset to off.The blocking of a function concerns all output signals from the actual function, so nooutputs will be activated.1MRK 502 048-UUS A Section 17Basic IED functions681Technical manual
