ABB Relion 670 Series Commissioning Manual page 74

Section 9
Testing IED operation
IEC15000031 V1 EN-US
2. Click Yes in the confirmation dialogue box.
PCM600 will revert all forced signals back to unforced and the real signal values will immediately
take effect again.
68
This may change both binary input values and output relay states and will undo any
forcing done by using the LHMI.
If the IED is left in test mode, then it is still possible to perform new forcing operations,
both from LHMI and from PCM600
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1MRK 505 372-UUS Rev. K
Busbar protection REB670
Commissioning manual