Fischer Panda 15 mini PMS Digital, Руководство пользователя

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Generator control system
Based on VCS183
DS_VCS183 Page 26
Rev. 06 www.fischerpanda.com ©Fischer Panda generators Inc.
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J2: Power supply towards control panels
•
Pin 2: Power supply negative.
•
Pin 3: Serial data link CAN-H
•
Pin 4: Serial data link CAN-L
Connectors and mating plugs are identical and thus may accidentally plugged in reversed. This does not
create any functional problem at all, pins are internally connected on the PC board anyway. No other
device must be connected to any of these connectors, these are solely intended for communication and
power distribution between components of the generator control system.
Sensing inputs
CT186 is sensing the temperature on the alternator bearing and fuel level. NTC temperature sensor for
alternator bearing comes with generators with nominal output power 12kVA and higher; it is not
required for generators with lower nominal output power. Fuel level sensor is supposed to be a linear
resistive sensor with below specifications. It is not part of Fischer Panda scope of supply. Sensors
connect to J8 as below:
•
Pin 1:
Resistive fuel level sensor, resistance range 30Ω … 5000Ω
•
Pin 2: Reference (ground) for fuel level sensor
•
Pin 3: Temperature sensor for alternator bearing. NTC Element with R
25
=100kΩ and B25/1
00
coefficient 3988, is installed on generators requiring this to be monitored
•
Pin 4: Reference (ground) for temperature sensor.
The connector as well as the mating plug have different pin spacing as compared to communication
interface, thus preventing miss-plugging.
Temperature sensing is the same as described for control board VCS18; CT186 will detect if the sensor is
missing or short-circuited. It will report sensor status as well as actual temperature reading to VCS183
for further processing.
Tank level sensing assumes a linear dependence between resistance and fuel level. Thus by
programming resistance at full tank and resistance at empty tank (
Table 8: Programing parameters: , P56
and P57) the control system will calculate the slope of the tank sensor and will provide tank level data
based on sensor readings. Whether the slope is positive or negative (i.e. resistance at empty tank
greater than at full tank or the other way around) is of no importance, the only restriction is the two
resistances must not be the same and must both be within above mentioned range.
As with temperature sensors, the control system will monitor the tank level sensor if it is enabled and
will report if it provides readings out of range.
Auxiliary connection
CT186 also does supply power to the battery charger (always 120V/60Hz, regardless of generator
configuration). This power supply is made available at connector F7 and is fused by barrel fuse F1, 4A
slow-blowing characteristic.
Optical status indication
CT186 provides a status feedback via a red and green LED. Blinking pattern of these LED’s is an
indication on actual operating mode: