How To Undo Forcing Changes And Return The Ied To Normal Operation; Undo Forcing By Using Testmode Component; Undo Forcing By Using Pcm600 - Hitachi Relion SAM600 Commissioning Manual

1MRK511447-UEN Rev. E
To force more signals, click the button Start editing signal value for forcing again.
8.6.4 How to undo forcing changes and return the IED to normal
operation
Regardless of which input/output signals have been forced, all forced signals will return to their
normal states immediately when the IED is taken out of test mode.
8.6.4.1

Undo forcing by using TESTMODE component

• If the IED test mode was entered through the test mode function block:
1.
This immediately undoes all forcing, regardless of how it was accomplished and disabled all the
way to force signals.
8.6.4.2

Undo forcing by using PCM600

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.
Switchgear control unit SAM600-IO
Commissioning manual
When the forcing is removed by exiting from IED test mode, both input and output signals
may change values. This means that logic input signals may activate functions in the IED
and that output relays may change state, which can be potentially dangerous.
Deactivate the control input on that block.
If the IED is left in test mode, then it is still possible to perform new forcing operations
from PCM600
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Section 8
Testing IED operation
GUID-00E2BAD8-A29E-4B9D-80E6-E12F59E019BD v1
GUID-CA5CCA57-DFFF-4362-AC1D-08738D2BA45F v2
GUID-CE7FD186-99FC-41C8-910F-894A57037777 v2
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