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1MRK 504 160-UEN -
Transformer protection RET650 2.1 IEC
Commissioning manual
IEC15000021 V1 EN
Figure 11:
3.
Use the up/down arrows on the LHMI to change the signal value or the
appropriate menu in PCM600.
The status of the signal changes automatically to Forced (i.e. there is no
need to set the status to Forced manually).
On the LHMI, these edit changes have immediate effect. This means
that the value changes directly when the up/down arrow is pressed (i.e.
there is no need to press the Enter key to effectuate the change).
When navigating away from a LHMI forcing menu for an I/O board, the user is
prompted to either leave the signals forced, or to revert all of them back to the unforced
state.
IEC15000022 V1 EN
It is possible to power-cycle the IED in this state without losing the
forcing states and values. This means that once a signal is forced, and
the IED remains in IED test mode, the input or output will appear
Value line of the desired signal
Section 9
Testing IED operation
61
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