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14. REF 542plus commissioning mode
The commissioning test mode allows accessing all the digital and analogue inputs
and outputs of REF 542plus. This mode is independent of the REF 542plus
application. This working mode has been designed to make easier the wiring
verification.
The super user key is required to enter this mode.
Entering this mode STOPS the execution of the protection and control
functions. The application software is not running. However, it is not
deleted from the permanent memory of the unit. The commissioning
test mode should be entered when the switchgear is de-energized and
in a safe state.
To switch on this mode the following actions have to be performed in sequence.
*
Switch off the REF 542plus Base Unit.
*
Place the super user key on the e-key sensor and keep it contacted.
*
Switch on the Base Unit.
When the Base Unit starts the e-key is detected. The commissioning mode is
entered. Verify this reading on the start-up status line “COMMISSIONING
MODE”. When this text is visible, the e-key can be unplugged from the e-key
sensor.
This mode allows driving directly the binary outputs of the Base Unit.
If they are connected to primary objects, operations are thus possible.
The interlocking functions are disabled. Before accessing this mode,
put the switchgear in safe conditions.
When entering the commissioning mode, the following screen is displayed.
Multifunction Protection and Switchgear Control Unit
Operator's manual
REF 542plusREF 542plus
1MRS755869
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