How To Undo Forcing Changes And Return The Ied To Normal Operation; Undo Forcing By Using Testmode Component; Undo Forcing By Using Lhmi; Undo Forcing By Using Pcm600 - Hitachi Relion 670 Series Commissioning Manual

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1MRK506371-UUS Rev. M
IEC15000032 V1 EN-US
To force more signals, click the button Start editing signal value for forcing again.
10.8.4
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.
10.8.4.1

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.
10.8.4.2

Undo forcing by using LHMI

If the IED test mode was enabled to using the LHMI:
1.
2.
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.
Line distance protection REL670
Commissioning manual
Regardless if the forcing changes are commited or canceled, the forcing is still active.
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.
Set IEDTestMode to Off in the LHMI menu.
Exit from the menu and click Yes in the Save dialogue box.
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Section 10
Testing IED operation
GUID-00E2BAD8-A29E-4B9D-80E6-E12F59E019BD v1
GUID-CA5CCA57-DFFF-4362-AC1D-08738D2BA45F v2
GUID-55199606-E70D-49B1-885D-251700FB562B v1
GUID-CE7FD186-99FC-41C8-910F-894A57037777 v2
85

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