ABB Relion 650 Series Operation Manual page 89

1MRK 500 128-UEN B
650 series 2.2 IEC
Operation manual
1. To set the IED to test mode, select Main menu/Test/IED test mode/
TESTMODE:1 and set the parameter TestMode to On.
2. To operate or force the output relay to operate, select Main menu/Test/
Forcing/Binary output values and then navigate to the board with the
actual binary output relay to be operated/forced.
3.
Select the BOn to be operated/forced and use
operate the actual output relay.
Each BOn is represented by two signals. The first signal in LHMI is the
actual value 1 or 0 of the output, and in PCM600 a lit or dimmed diode.
The second signal is the status Normal or Forced. Forced status is only
achieved when the BO is set to Forced or operated on the LHMI.
An initially high contact resistance does not cause problems as it is reduced quickly
by the electrical cleaning effect of fritting and thermal destruction of layers,
bringing the contact resistance back to the mOhm range. As a result, practically the
full voltage is available at the load.
Set the parameter TestMode to Off after completing these
tests. The Start LED stops flashing when the relay is no
longer in test mode.
Section 8
Troubleshooting
and or to
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