ABB RELION RET670, Commissioning Manual, Page: 109 / 328

1. Set IEDTestMode to Off in the LHMI menu.
2. Exit from the menu and click Yes in the Save dialogue box.
This immediately undoes all forcing, regardless of how it was accomplished and
disabled.
10.8.4.3 Undo forcing by using PCM600
1. Uncheck Forcing Session under the menu IED .
IEC15000031 V1 EN
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 504 165-UUS -
Section 10
Testing IED operation
Transformer protection RET670 2.2 ANSI 103
Commissioning manual