Releasing The Function To Be Tested; Verifying Analog Primary And Secondary Measurement - ABB REC650 Commissioning Manual

1MRK 511 248-UEN -
5.5
5.6
Commissioning Manual

Releasing the function to be tested

Release or unblock the function to be tested. This is done to ensure that only the
function or the chain of functions to be tested are in operation and that other
functions are prevented from operating. Release the tested function(s) by setting
the corresponding Blocked parameter under Function test modes to No in the local
HMI.
When testing a function in this blocking feature, remember that not only the actual
function must be activated, but the whole sequence of interconnected functions
(from measuring inputs to binary output contacts), including logic must be
activated. Before starting a new test mode session, scroll through every function to
ensure that only the function to be tested (and the interconnected ones) have the
parameters Blocked and eventually EvDisable set to No and Yes respectively.
Remember that a function is also blocked if the BLOCK input signal on the
corresponding function block is active, which depends on the configuration. Ensure
that the logical status of the BLOCK input signal is equal to 0 for the function to be
tested. Event function blocks can also be individually blocked to ensure that no
events are reported to a remote station during the test. This is done by setting the
parameter EvDisable to Yes.
Any function is blocked if the corresponding setting in the local
HMI under Main menu/Tests/Function test modes menu remains
On, that is, the parameter Blocked is set to Yes and the parameter
TestMode under Main menu/Tests/IED test mode remains active.
All functions that were blocked or released in a previous test mode
session, that is, the parameter Test mode is set to On, are reset when
a new test mode session is started.
Procedure
1. 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.
Verifying analog primary and secondary
measurement
Verify that the connections are correct and that measuring and scaling is done
correctly. This is done by injecting current and voltage to the IED.
Section 5
Testing IED operation
35