MEC 2 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM056 Rev 6 05/10/15
Thomson Technology
25
the level of temperature setpoint, transient time delay settings and other
functions. Refer to the programming instructions for further information.
4.4.4.3.HIGH ENGINE TEMPERATURE #2 SHUTDOWN
The high engine temperature shutdown fault circuit is activated when the
engine temperature rises above a pre-determined setpoint for a specified
time delay. The high engine temperature shutdown fault is programmable
for the level of temperature setpoint, transient time delay settings and
other functions. Refer to the programming instructions for further
information.
Note: High Engine Temperature shutdown may alternately be
programmed and wired as a digital fault input contact. Refer to
Section 9.5
for further details.
4.4.5. ENGINE OIL PRESSURE ANALOG INPUT
The MEC 2 engine oil pressure sensor measures a DC analog signal from an
engine mounted sender. The MEC 2 software provides calibration for oil
pressure to coordinate with the engine mounted sender and control logic to
detect a wiring or sender failure (i.e. open or shorted signal). In case of a sender
or wiring failure, the MEC 2 will display zero or 9999 PSI and will initiate an alarm
and/or shutdown signal as programmed by the user. The engine oil pressure
analog input provides the following control function:
4.4.5.1.LOW OIL PRESSURE #1 ALARM
The low oil pressure alarm fault circuit is activated when the oil pressure
drops below a pre-determined setpoint for a specified time delay. The low
oil pressure alarm fault is programmable for pressure setpoint level,
transient time delay settings and other functions. Refer to the
programming instructions for further information.
4.4.5.2.LOW OIL PRESSURE #2 SHUTDOWN
The low oil pressure shutdown fault circuit is activated when the oil
pressure drops below a pre-determined setpoint for a specified time
delay. The low oil pressure shutdown fault is programmable for pressure
setpoint level, transient time delay settings and other functions. Refer to
the programming instructions for further information.
