ABB REB670 Commissioning Manual page 86

Section 9
Testing IED operation
80
1. Uncheck Forcing Session under the menu IED.
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.
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
1MRK 505 372-UEN A
Busbar protection REB670 2.2 IEC
Commissioning manual