4
5. CONNECTIONS
5.1. FEEDING CONNECTION
Feed the unit at 12Vdc according to figure
number 4, taking into account the terminal polarity.
When feeding the unit, it will stop automatically.
Connect two direct cables from the battery to the
unit feeding terminals, avoiding that they feed other
parts.
The input is protected against overloads and
excess of power.
Avoid any diesel engine working without battery,
as the alternator would rise the feeding tension
momentarily.
5.1.1. COMMON CONNECTION
Install a direct cable from the battery terminal to
the input C of the unit.
5.1.2. INPUT CONNECTION
Read the CONFIGURATION chapter before using
inputs.
The unit has four digital inputs, which are
responsible of the start or stop of the engine and of
the detection of breakdowns. Their activation and
deactivation can be delayed using the corresponding
sections in Configuration.
§
Input 1: Corresponds to the external orders of
START, or START/STOP, as indicated in the
configuration code number 14.
§
Input 2: Corresponds to the external orders of
STOP or CONDITIONAL STOP as indicated in
configuration code 14. When there is a conditional
stop, the letters “P CO” are displayed on the
screen intermittently.
§
Input 3: (this connection is indispensable for the
unit to work) Corresponds to DETECTION of
working motor and it must be connected to the oil
pressure gauge when there is a diesel engine, and
to the alternator outlet when there is a petrol
engine. When there is a petrol engine, it is
necessary to modify some internal jumpers
according to figure 3.
The oil pressure gauge lights when the
engine is not working and is not lit when it is
working.
If the unit conditions indicate that the engine
is working but input 3 is disconnected the engine
stops and the programme is deactivated. The
programmer goes to the consultation code C1,
showing the intermittent letters “PA” on the screen
until the “C” key is pressed.
If on giving the order of starting to the
engine, it detects that there is oil pressure (that is
to say, it does not receive a signal from the oil
pressure gauge through input 3), the programmer
understands that the motor is already working,
showing a “PA” intermittently on the screen and
activating the stop outlet.
The detection delay can be programmed at
the configuration code 11.
Figure 3. Configuration of the jumpers
Steps to do for work with petrol engines:
1.- Press the key + and -, at the same time that you
are connecting the feeding, and the unit will do
an output test.
2.- Once the test will be finished a flickering code
“
‹
‹
1” will be shown.
3.- Pressing the “C” key the “
‹
‹
1 no”. will appear
4.- And with the keys “+” and “-“ it will change to yes
or not. For diesel engine “NO” and for petrol
engine “YES”.
5.- To confirm the option press the keys “C” and “+”
at the same time.
§
Input 4: Corresponds to BREAKDOWN. It is only
taken into account if the engine is working. When
it activates, the engine stops immediately, the
programmer goes to the consultation code C1
and the letters “EA” are displayed on the screen
intermittently. Programmes are deactivated and
will not start again after the breakdown. No
programme can be started until the “C” key is
pressed as this key deactivates the breakdown.
The detection delay can be programmed at the
configuration code 10.
5.1.3. OUTLET CONNECTION
Outlets are protected by a 4 A. fuse, F type.
Replace it with a similar one if it fuses.
