ABB REC650 Commissioning Manual

Also see for REC650 ANSI: Technical manual Manual Applications manual Product guide Applications manual

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ABB REC650 Commissioning Manual Manual pdf 43 page image

5.5 Releasing the function to be testedRelease or unblock the function to be tested. This is done to ensure that only thefunction or the chain of functions to be tested are in operation and that otherfunctions are prevented from operating. Release the tested function(s) by settingthe corresponding Blocked parameter under Function test modes to No in the localHMI.When testing a function in this blocking feature, remember that not only the actualfunction must be activated, but the whole sequence of interconnected functions(from measuring inputs to binary output contacts), including logic must beactivated. Before starting a new test mode session, scroll through every function toensure that only the function to be tested (and the interconnected ones) have theparameters Blocked and eventually EvDisable set to No and Yes respectively.Remember that a function is also blocked if the BLOCK input signal on thecorresponding function block is active, which depends on the configuration. Ensurethat the logical status of the BLOCK input signal is equal to 0 for the function to betested. Event function blocks can also be individually blocked to ensure that noevents are reported to a remote station during the test. This is done by setting theparameter EvDisable to Yes.Any function is blocked if the corresponding setting in the localHMI under Main menu/Tests/Function test modes menu remainsOn, that is, the parameter Blocked is set to Yes and the parameterTestMode under Main menu/Tests/IED test mode remains active.All functions that were blocked or released in a previous test modesession, that is, the parameter Test mode is set to On, are reset whena new test mode session is started.Procedure1. Click the Function test modes menu.The Function test modes menu is located in the local HMI under Main menu/Tests/Function test modes.2. Browse to the function instance that needs to be released.3. Set parameter Blocked for the selected function to No.5.6 Verifying analog primary and secondarymeasurementVerify that the connections are correct and that measuring and scaling is donecorrectly. This is done by injecting current and voltage to the IED.1MRK 511 248-UEN - Section 5Testing IED operation35Commissioning Manual