1. Navigate to the desired parameter or quantity using the arrow keys.
2. Press the E key when the parameter to be changed is highlighted.
3. Move between digits or letters using the left and right arrow keys.
4. Use the up and down arrow keys to change the digit or letter concerned.
5. Press the E key once the desired changes have been made.
6. Press the left arrow key to move up a level in the HMI tree.
7. You will be prompted to confirm the changes, use the left and right arrow keys
to toggle between yes and no in the pop up window and press the E key to
confirm your choice.
8. Press the left arrow key to move up to the next level in the HMI tree.
4.7.3 Control
The HMI offers the operator the opportunity to exercise direct local control over
breakers and other apparatuses in the bay using the graphic display and designated
keys on the front panel of the IED.
By pressing the L/R key until the uppermost of the two LEDs next to the key lights
up, local operator control can be exercised from the HMI.
An apparatus is selected using the up and down arrow keys. The active apparatus is
highlighted in the display.
The Open or Close commands are issued by pressing the O or I keys;
The user is requested to confirm the command in a pop-up window.
E confirms a command; C cancels it.
Interlocking or synchrocheck conditions may cause other query windows to pop-up.
1MRK 502 014-UEN C Section 4
Understand the local human-machine interface
23
Operator's manual
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