6
3.9. OPTION START-UP OF ELECTRIC GENE-
RATOR FOR NET FAILURE DETECTION
For start-up the electric generator its necessary
to connect the marked cable in the picture, to the 220
V power supply.
Inside the Diesel control it can find a small box
with the timings adjust of work and stop; The
maximum time in each of them is three minutes. The
start-up it corresponds to the time since the supply fail
until its carry out the start-up of the electric generator.
The stop it corresponds to the time that it takes in stop
the electric generator, once the current supply has
returned.
3.10. MISCELLANEOUS NOTES
When the start/stop is related to other units
which act on the flow rate (for example, irrigation
programmers) this must be borne in mind that on
ordering the stop and closing all the flow outlets
(electro-valves) the engine takes time to stop, and for
this reason, in some cases, it could be necessary to
connect a flow outlet electro-valve to the stop outlet of
the Diesel-control (terminals – and 3) to avoid a
pressure surge.
With fuel cut-off electro-valves “normally closed”
as incorporated in some engines, it is necessary to
supply them between terminal no. 4 (contact) and the
negative. This way, they will open at the first start
attempt and will close with the stop order, staying
open during the working period.
4. BREAKDOWN GUIDE
SYMPTOM:
With MANUAL START, the unit is not activated
and the “WORKING” LED does not light up.
CAUSES:
-
Mistaken polarity in the supply.
-
The oil pressure gauge is not connected to
terminal 5.
-
The oil pressure gauge is defective or does
not indicate mass with the engine stopped.
SYMPTOM:
The unit is not activated by the clock or external
sensor, but is activated by the “MANUAL” button.
CAUSES:
-
An internal track is fused. Bridge input
terminals 2 and 8 and the problem will be
solved.
SYMPTOM:
The “START” LED is activated but the does not
attempt to start, although it does stop.
CAUSES:
-
Start relay stuck in contact and does not
transmit start signals. A supplementary relay
between the Diesel-control outlet and the
starter distributor is recommended.
SYMPTOM:
The “START” LED lights up momentaneously
but goes out immediately and does not start well.
CAUSES:
-
The battery is low. Recharge it.
-
The unit feed cables and/or the common
outlet are of an insufficient cross-section.
-
The positive feed to the unit and that for the
outlets is bridged and are not two
independent cables as they should be.
SYMPTOM:
Does not stop.
CAUSES:
-
The plastic support for the stop relay is hot
and does not push the moving contact
enough. The cause is overheating due to a
higher current than intended having passed
through it.
-
The moving contact of the relay has caught
on the rear part, which is made of plastic.
The cause is overheating as above.
-
The stop circuit has shorted as a result of a
power surge caused by bad external
handling or a short circuit.
SYMPTOM:
The relays cannot be heard vibrating.
CAUSES:
-
Battery is low. Recharge it.
-
The feed cables are too small.
