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Connection | Diesel enginge connection
Assembly and connection manual | Agrónic 4500
4.5. DIESEL ENGINGE CONNECTION
In installations where there is a motorized pump,
Agrónic can manage the start and stop manoeuvres.
To manage it, it uses four outputs (preheating, contact,
start and stop) and a digital input (oil pressure switch).
When connecting diesel engine starters, the following
details must be taken into account:
ENTRANCE
PA oil pressure switch. The pressure switch input can be
connected to any of the 12 digital inputs on the base. It
is not necessary to connect the DC digital common to
the pressure switch as it is done directly through the
motor chassis.
OUTPUT
The outputs deliver the battery positive. And additional
relay will be inserted in each of them to avoid damage
to the internal relays. The contact output will be
connected through the realy to the wire from the “15/54”
terminal of the key. It is the controller that is in charge of
giving and removing the contact, so the key must be le
in the rest position.
A supplementary relay will be inserted in the starting
output, with a capacity of 20 to 30 Amps, connected
checking its output with the cable from terminal “50” of
the key.
If the motor is stopped by an electromagnet, it will
be connected to the supplementary relay of the stop
output.
If the stop is made by cutting o the fuel with a solenoid
valve, it will be installed at the same inlet of the injector,
so that the stop is as quick as possible.
When the solenoid valve is normally open, it will
connect directly to the stop output. If the solenoid valve
is normally closed, it will be connected to the contact
output.
When there is preheating, it will be connected to the
relay for activation.
Diesel engine
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