- Warning
- Derating
The strategy is applied to the right side exhaust manifold and/or the left side exhaust manifold. The default settings that are programmed at the factory are listed in Table 1.
| Exhaust Temperature | |
| Parameter | Default Setting |
| Warning setpoint | 2T specification |
| Warning delay | 5 seconds |
| Derate setpoint | 2T specification |
| Derate delay | 5 seconds |
| Delay per step | 15 seconds |
| Hysteresis | |
| Security level | Required password |
| Derating per step | 2% per step |
If the exhaust temperature is above the setpoint for the warning for five seconds, a warning will occur.
If the exhaust temperature is above the setpoint for the derating for five seconds, the derating will occur.
The derating reduces the power by two percent. This is followed by a 15 second delay. If the exhaust temperature is not reduced below the setpoint after the 15 second delay, the engine is derated another two percent.
When the exhaust temperature is reduced to less than the setpoint, two percent of the power is restored for every 15 seconds. This continues until full power is restored. However, if the exhaust temperature rises above the setpoint again, the derating resumes.