Fischer Panda 15 mini PMS Digital, Руководство пользователя

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Generator control system
Based on VCS183
DS_VCS183 Page 13
Rev. 06 www.fischerpanda.com ©Fischer Panda generators Inc.
If just one of above 2 sensors is enabled then valid readings form that sensor is mandatory. Receiving
invalid readings (i.e. sensor disconnected or short-circuited) again is interpreted as major fault (has no
way to read engine temperature).
If both temperature sensors, cylinder head and coolant inlet, are disabled then the control system will
consider this to be an intended emergency operation as both sensors did fail but operation of the
generator being required even at the risk of total loss of the generator.
As with exhaust elbow
temperature sensor such operation shall be restricted to real emergency cases only
Reading oil pressure
The control system reads oil pressure by means of an analog oil pressure sensor. Supply for this sensor is
provided by the control system. VCS183 will monitor total power consumption of the sensor and will
also check oil pressure for plausibility to detect any potential fault of the oil pressure sensor. Faulty oil
pressure sensor will lead to an emergency engine stop. The oil pressure sensor may be disabled in
generator configuration; access to this level of settings is password-protected. As with temperature
sensors, the status of the oil pressure sensor will be logged. ABYC requires the engine oil pressure to be
monitored, thus disabling the oil pressure sensor shall be limited to real emergency situations.
Implications on ABYC requirements
Monitoring oil pressure, exhaust elbow and engine temperature are crucial for save engine operation.
Disabling any of these sensor input comes with the risk of generator damage or total loss in case of an
over-temperature / low oil pressure.
It is strongly recommended not to disable any sensors unless for emergencies. Continuous operation with
disabled sensor not only is opposing ABYC standards but also bears the risk of generator loss.
Running the generator without current sensing device
CT 186 is not crucial to generator operation. If at any time connectivity to this device is lost the control
system will keep the generator running and regulate engine speed based on its own readings. Some
restrictions however do apply and for this reason operating the generator without current sensing
device is considered to be emergency operation.
Without CT186 the control system does not know the actual output load. Thus, it cannot detect an
overload or over-current situation. Overload monitoring is now entirely relying on the coil temperature
sensing.
With no current sensing device available, neither fuel level nor alternator bearing temperature reading
is available. The latter one is an input that would indicate problems with the alternator bearing, thus
running the generator without this being monitored puts at risk the entire backend.
The control system VCS183 will immediately detect whether the current sensing device is attached or
not. It will further compare voltage and frequency reading as received from the current sensing device
with its own sensing. If it detects a too high deviation it will consider the current sensing device to be in
improper working condition and will ignore any AC readings. It will then behave as if there was no
current sensing device connected, with the exception of tank level sensor and alternator bearing sensor
still being evaluated.