
8. KEYBOARD AND DISPLAY
Level 1 | Level 2 | Level 3 | Level 4 | |
| FUNCTION | 50BF 1P FUNCTION |
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| 50BF 3P FUNCTION |
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| PERMIT |
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| 3P NO INT FUNCT. |
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| PH HISET PICKUP |
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| PH LOSET PICKUP |
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| NEUTRAL PICKUP |
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| 1 PHASE TIMER T1 |
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| 3 PHASE TIMER T2 |
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| 50BF SETTINGS T1 | 3P NO I TIMER T3 |
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| BF LOGIC (3P/2P) |
| 3 PHASE/2 PHASE |
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| SEVERE FAULT 3P |
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| LOW LOAD 2P |
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| Nº OUTPUT STAGES | 1 / 2 | |
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| 2nd STAGE TIMER |
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| 50 BF SETTINGS T2 |
| Same than for TABLE 1 | |
| 50 BF SETTINGS T3 |
| Same than for TABLE 1 | |
| INTERNAL ARC SET T1 | INT ARC PICKUP |
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| INT ARC TIMER |
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| INTERNAL ARC SET T2 |
| Same than for TABLE 1 | |
| INTERNAL ARC SET T 3 |
| Same than for TABLE 2 |
To change any setting the procedure is as follows:
∙Press the SET key.
∙Select the option MODIFY SETTINGS (using −↓ arrow keys).
∙Press ENT key.
∙Select the required setting group in the menu tree (with −↓ arrow keys).
∙Press ENT key.
∙Select the required specific setting (with −↓ arrow keys).
∙ENTER the value to be modified ( or select the required value from the list of available settings using right/left arrow keys).
∙Press the ENT key.
∙Press the END key.
∙The relay will request confirmation of the change by means of the following message:
CONFIRM
Y/N
∙To confirm the change, press the 1/Y key. (If not, press 3/N).
∙The relay will then show the following message on the screen (LCD):
SETTINGS CHANGE
EXECUTED
∙Press the CLR key four times to return to the main first screen (rest).
44 | DBF Breaker Failure Protection |