Running detection
6151 Running
detection
This timer can be set to the needed level. This will make sure that the engine goes from the RPM level set in
6174 Remove starter and 6173 Running detection level. If the timer is exceeded and the level is not
reached, the start sequence will start over and will have used a start attempt. If all start attempts (6190 Start
attemps) are used, the 4570 Start failure will occur. This timer will only be active, if MPU or EIC RPM is
selected in 6172 Run detect type.
NOTE
If other running detection types than MPU or EIC RPM are used, the starter will be on until 6165
Frequency detection level is reached.
Frequency level
6165 Frequency
detection level
This set point is in Hz and can be set to the needed level. When the level is reached, the regulators will start
working and make sure to reach the nominal values. The regulators can be delayed using 2740 Delay of
regulation. See below.
Run status
6160 Run status
The timer in this set point is started when 6173 Running detection level is reached, or when 6165
Frequency detection level is reached. When the timer is exceeded, the inhibit status Not running will be
deactivated, and the running alarms and failures will be enabled (see the related failures below).
Delay of regulation
2740 Delay of
regulation
By using this timer, the regulation start can be delayed. The timer will start when 6165 Frequency detection
level is reached.
NOTE
If the setup is running on nominal settings and 2740 Delay of regulation is set to 0, the genset
will overshoot the nominal frequency on start-up, as the regulators start increasing as soon as
they are turned on. If this timer is used, the regulation can wait until the genset is already at
nominal frequency before starting to regulate.
Failures related to the start sequence
Crank failure alarm
4530 Crank failure
If MPU is chosen as the primary running feedback, this alarm will be raised if the specified RPM is not
reached before the delay has expired.
Run feedback failure
4540 Run feedb.
fail
This is an alarm, in case there is no primary running feedback (6172), but the secondary feedback detects
running. There is a failure on the primary running feedback, and therefore this alarm will be raised with a
delay. The delay to be set is the time from the secondary running detection and until the alarm is raised.
Hz/V failure
4560 Hz/V failure
If the frequency and voltage are not within the limits set in 2110 Blackout df/dUmax after the running
feedback is received, this alarm is raised when the delay has expired.
Start failure alarm
4570 Start failure
The start failure alarm occurs, if the genset has not started after the number of start attempts set in menu
6190.
Engine externally stopped
6352 Ext. Eng.
Stop
If running sequence is active and the engine goes below 6173 Running detection and 6165 Frequency
detection level without any command from the AGC, it will set an alarm if this parameter is enabled.
DESIGNER'S HANDBOOK 4189341275A EN Page 57 of 196
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