GE DFF1000 Series, Instructions Manual, Page: 24 / 59

GEK – 106166B
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4. 4. 4. 4. EQUI EQUI EQUI EQUIPMENT CONFIGURATION PMENT CONFIGURATION PMENT CONFIGURATION PMENT CONFIGURATION
The DFF protection system has inputs, outputs and configurable LEDs. All of them are user configurable. The
configurable inputs are adjusted through GE_INTRO software (instruction book GEK-105594A)
4.1 INPUTS CONFIGURATION
Each of the 14 or 7 configurable Inputs (depending on the model) can have any of the following values:
- Input non-active
- External Trigger ( Pulse )
- Table 0 selection ( Level )
- Table 1 selection ( Level )
- Frequency trips block ( Level)
- Voltage trips block ( Level )
- Complete protection trips block ( Level )
Besides these possibilities, the configurable inputs may be used for creating customized load shedding schemes
by using logic ANDs gates assigned to inputs and then addressed those states to the outputs. To perform such
schemes the inputs have to the configured as “Non-active”.
The operation of each input is as follows:
•
External Trigger (Pulse): This input is activated by a pulse and captures the analog waveforms at that moment.
•
Table 0 selection 0 (Level): This input is activated by a change in the voltage level. It is used for changing the
active setting table. Please refer to section 2.5 for further details.
•
Table 1 selection (Level): Same as above.
•
Frequency trips block (Level): This input is activated by a change in the voltage level. It is used for blocking the
operation of all frequency units.
•
Voltage trips block (Level): This input is activated by a change in the voltage level. It is used for blocking the
operation of all voltage units.
•
Complete protection trip block (Level): This input is activated by a change in the voltage level. It is used for
blocking the operation of all protection units.