Fischer Panda 15 mini PMS Digital, Руководство пользователя

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Generator control system
Based on VCS183
DS_VCS183 Page 9
Rev. 06 www.fischerpanda.com ©Fischer Panda generators Inc.
bus. If the control system does not detect valid data from a control panel within a certain time frame it
will enter low power mode.
If the control panel does detect current sensing device CTxxx to be connected and working, but control
system VCS183xxx is not, then it will report this error and power down. The generator cannot be
operated without VCS183xxx.
If it detects control system VCS183xxx but no current sensing device CTxxx then again the panel will
report this status and will enter emergency operation mode as described above.
Now the control system will perform some self-checks including actuator test (moving the fuel rack at
slow pace from minimum position to maximum position). Depending on the outcome of these testing
the control system may be in either one of below mentioned modes:
•
No faults pending
•
Minor faults pending
•
Major faults pending
If at least one major fault was detected the generator will not start; receiving a start request from the
panel will be ignored. Major faults are indicated in inverse printing on the control panel (light characters
on dark background).
Note that a missing current sensing device is not a major fault but rather needs to be considered an
emergency operation mode.
While the engine is stopped some temperature readings will be ignored. This is to avoid cases where a
start request will be denied because of residual heat from the engine led to a temporarily overheating. It
may be safely be assumed that once the generator is running and coolant is flowing those temperatures
will decrease into safe area of operation. If they do not then the control system will shut down for an
emergency condition.
Other more obvious emergency stop criteria that are invalidated while the generator is stopped are low
oil pressure, low AC frequency and low AC voltage; all of these will read 0 while the generator is not
running without triggering a major fault.
After transitioning from standby mode into regular mode the operational mode
will be “
Generator
stopped
”.
Temperature and I/O monitoring will continue while in this operational mode and may
allow/deny engine start. Engine start will be denied if either one of the parameters CA0, CA2 to CA4,
CA11 to CA15, or any of the STxx is pending (see
Table 4: Messages appearing as alarms or warnings and
Table 7: Alarm messages ).
Staring the generator
Whenever the control system receives a start request from the panel it will perform the engine start as
described below. Any major fault that arises during this period will cause the start process to be
abandoned and depending on when this fault aroused the control system will either revert into stop
mode with pending major faults or it will transition into “unacknowledged alarms pending”
mode. This
mode is described in more detail in this manual, see Unacknowledged alarms pending .