UNEXPECTED SHUTDOWN

Possible Causes

• •Voltage values between genset phases remain under the minimum programmed limits (Thresholds table parameter 3) during the programmed time (alarms table parameter 62)
• •Genset frequency values obtained are kept under the minimum programmed limits (Thresholds table parameter 6) during the stabilization time (alarms table parameter 65)
• •Controller fails to detect all engine starting conditions (regulations table parameters 19 to 22) while the engine is running
• •All engine conditions (regulations table parameters 19 to 22) are not detected within 15 seconds after an engine stop attempt
• •Voltage values drop below limits defined in Thresholds table parameter 3 during the period defined by alarms table parameter 62
• •Genset frequency values are kept under the minimum programmed limits (Thresholds table parameter 6) during the stabilization time (alarms table parameter 65)
• •Controller does not detect all engine starting conditions (regulations table parameters 19 to 22) while the engine is running
• •Engine conditions (regulations table parameters 19 to 22) are not detected 15 seconds after a stop attempt
• •Genset phase voltage drops below the thresholds defined in Thresholds table parameter 3
• •Genset frequency values remain below the thresholds defined in Thresholds table parameter 6 during the stabilization time programmed in Alarms table parameter 65
• •The controller does not detect all engine starting conditions (regulations table parameters 19 to 22) while the engine is running
• •All engine stop conditions (regulations table parameters 19 to 22) are not detected 15 seconds after an engine stop attempt

Suggested Actions

1. 1Stop the engine with cooling (configured via alarms table parameter 63)
2. 2Stop the engine with cooling (configured via alarms table parameter 66)
3. 3Disconnect the stop failure alarm (alarms table parameter 70) to allow the device to consider the engine stopped after waiting 15 seconds
4. 4Ensure all stopping conditions are detected during a programmed time (alarms table parameter 71) to successfully detect the engine stop
5. 5Configure alarm (alarms table parameter 63) to carry out stop with engine cooling
6. 6Configure alarm (alarms table parameter 66) to carry out stop with engine cooling
7. 7Disconnect the stop failure alarm (alarms table parameter 70) so the device will consider the engine stopped after waiting the maximum time of 15 seconds
8. 8Ensure all stopping conditions are detected during the programmed time (alarms table parameter 71) to properly detect engine stop
9. 9Stop engine with cooling (automatically triggered action configured by alarms table parameter 63)
10. 10Stop engine with cooling (automatically triggered action configured by alarms table parameter 66)
11. 11Disconnect the stop failure alarm (alarms table parameter 70) to allow the device to consider the engine stopped after waiting a maximum of 15 seconds
12. 12Ensure all engine stopping conditions are detected during the programmed time (alarms table parameter 71)

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