Overview
The “Frequency out of band accumulation” element provides diagnostic information and alarms based on the accumulated off-nominal frequency operation time of a turbine over several frequency bands, that can then be used to schedule maintenance or other action.
For more detailed information on “Frequency out of band accumulation” element, refer to GE, Universal Relay (UR) family of products, Version 8.0x manuals.
To see other supported elements, click here.
Setting Parameters
Modbus memory map for Setting parameters
| Products | Hex address | Register name | Range | Units | Step | Format | Default |
| G30, G60 | 3D37 | Frequency Out-Of-Band Accumulation Block | 0 to 4294967295 | — | 1 | F300 | 0 |
| " | 3D39 | Frequency Out-Of-Band Accumulation Events Enable | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | 3D3A | Frequency Out-Of-Band Accumulator Function Enable Array (7 items) | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | 3D41 | Frequency Out-Of-Band Accumulator Lower Frequency Array (7 items) | 20 to 70 | Hz | 0.01 | F001 | 6000 |
| " | 3D48 | Frequency Out-Of-Band Accumulator Min Value V A | 0.1 to 1.25 | pu | 0.01 | F001 | 10 |
| " | 3D49 | Frequency Out-Of-Band Accumulator Source | 0 to 5 | — | 1 | F167 | 0 (SRC 1) |
| " | 3D4A | Frequency Out-Of-Band Accumulator Target Messages Enable | 0 to 2 | — | 1 | F109 | 0 (Self-reset) |
| " | 3D4B | Frequency Out-Of-Band Accumulator Time Limit Array (7 items) | 1 to 65535 | sec | 1 | F001 | 200 |
| " | 3D52 | Frequency Out-Of-Band Accumulator Time Preset Array (7 items) | 0 to 65535 | sec | 1 | F001 | 0 |
| " | 3D59 | Frequency Out-Of-Band Accumulator Upper Frequency Array (7 items) | 20 to 70 | Hz | 0.01 | F001 | 6000 |
| F102 | 0 = Disabled, 1 = Enabled | ||||||
| F109 | 0 = Self-reset, 1 = Latched, 2 = Disabled | ||||||
| F167 | 0 = SRC 1, 1 = SRC 2, 2 = SRC 3, 3 = SRC 4, 4 = SRC 5, 5 = SRC 6 | ||||||
Logics & highlights
Frequency out-of-band accumulation logic
