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2.7 ELECTRONIC MODULES
2.7.1 Overload Ground Fault Module (OGF)
Figure 2-9. OGF Module
The OGF is located in the control box on the relay panel
assembly. The module has two electrical safety features
in diesel and standby modes:
1. Overload protection function -- Overload break cur-
rent = 40A
2. Ground leakage current protection -- ground leakage
break current -- 150mA
For each case, A100 “OVERLOAD GROUND FAULT”
is activated and the unit shuts down.
In case of ground leakage detection, the red LED will be
on continuously.
2.7.2 Phase Reversal Module (PRM)
Figure 2-10. PRM Phase Reversal Module
The PRM phase reversal module is located in the
control box on the standby panel assembly.
In standby mode, the phase reversal module checks the
electrical phase and reverses if necessary.
2.8
OPTIONS
2.8.1 Light Bar
The Light Bar is an external set of indicator lights which
can be seen in the mirror from the cab of the tractor.
They are controlled by the microprocessor. The green
LED indicates “STATUS OK”. The amber LED indicates
“CHECK UNIT”. Amber follows the microprocessor fault
light and alarms can be read on the micro display.
2.8.2 Door Switch(es)
A two compartment unit has provisions to connect a
Door Switch (DS) directly to the microprocessor. (This
provision is not available for three compartment units.)
The microprocessor will recognize switches with
contacts that are either open when the door is open, or
that are closed when the door is open. Additionally, the
Configuration List gives you the ability to determine
whether the switch will: enable the alarm only, enable
the alarm and also shut the unit down, enable the alarm
and put the unit into low speed while the door is open, or
to have no alarm and only record door openings &
closings in the data recorder.
If the Door Switch is configured to shut the unit down
when the door is open, the unit will shut down for a
minimum of 3 minutes. Additionally, there is an Override
Door Switch in the functional parameters (Refer to
Functional Parameter List, Section 3.16.) When this
parameter is set to YES, the Door Switch Alarm will
come on when the door is open. However, the unit will
not shut down. This feature is included in the event of a
door switch failure.
For both two and three compartment units a separate
provision is available. Individual door switches for each
compartment can be wired directly into the remote
compartment ON/OFF switch. This will allow the door
switch to shut down a compartment when the door is
opened. The Data Recorder will record this in the same
manner as if the compartment ON/OFF switch was
used to turn the compartment off.
Summary of Contents for VECTOR 1800 MT
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Page 2: ...OPERATION SERVICE MANUAL for VECTOR 1800 MT Trailer Multi Temp Refrigeration Units ...
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