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GCM02-MT-ING4 NEW.doc c/02 04/03/2003 ENG Page 53 of 57
2.18.6 STOPPAGE WITH SOLENOID VALVE
Stoppage with SOLENOID VALVE normally energised while the generator is running and while the utilities of
the unit are powered.
Connection 7 is defined 15/54, it emits the +B with a maximum current of 16A as the GE starting is commanded to stop
when the stoppage command is received,
2.18.7 MOTOR CONTROLLING PROBES
These detect the operational status of the motor. The integrity of the actual motor relies on their efficiency.
They are of two types:
Contact type to command alarm status, such as low oil pressure, high motor temperature, low fuel level etc.;
Variable resistance type depending on the parameter to command reading instruments such as thermometers, gauges, levels etc.
The parameters read by the M02 are performed with VDO probes or compatible types.
PROBE TYPE MARK OHM VALUE TRIPPING
THRESHOLD
MOTOR
OIL PRESSURE SWITCH NC CONTACT ZERO OHM 0,5 Bar
WATER THERMOSTAT NO CONTACT V D O OHM INFINITE 93°C WATER
OIL THERMOSTAT NO CONTACT V D O OHM INFINITE 120°C AIR
OIL PRESS.
TRANSDUCER
VARIABLE
RESISTANCE
VDO 0÷180 OHM Adjustable pre-alarm
threshold
TEMP. TRANSDUCER VARIABLE
RESISTANCE
VDO 0÷660 OHM Adjustable pre-alarm
threshold
LEVEL TRANSDUCER RESISTANCE VEGLIA 0 ÷ 180 Ohm Adjustable alarm,
pre-alarm, pump
control thresholds
Fig. 5 CONTACT PROBES VARIABLE RESISTANCE PROBES
NO NC
2.18.8 ELECTRICAL STRENGTH TEST
The control panels that are subject to the electrical strength test are to be prepared baring in mind that the only connection point with the
electronic logic is established by the MAINS sensor (inputs 50 – 49- 48) to which a divider is connected that is made up of 3 500 K ohm
resistors for high voltage, for phase and connected to earth.
Therefore the R - S – T - N inputs are to be disconnected.
7
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