IEC15000022 V1 EN-US
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
“frozen” at the value selected by the user, even if the IED is switched
off and back on again.
Freezing a signal value without changing it
GUID-FD76AAC1-7098-47D3-A3A1-6ACDF509ED91 v1
• Set the status of a signal to Forced, in the forcing menu that corresponds to the I/O
card in question. See example of LHMI menu in figure
41
IEC15000020 V1 EN-US
Figure 41: Example of LHMI menu using BIM3
1MRK 502 073-UUS A Section 12
Testing IED operation
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 133
Commissioning manual
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