ELCOS SRL
- Parma - CEM-120 – PROG – EN
7
SIGNALS COMING FROM THE CHARGING ALTERNATOR
RUNNING ENGINE THRESHOLD, TACHOMETER, OVERSPEED AND UNDERSPEED ADJUSTMENTS
ADJUSTMENTS WITH CHARGING ALTERNATOR FREQUENCY (W)
TACHOMETER ADJUSTMENT
SIGNALS COMING
FROM THE GENERATOR
SIGNALS COMING
FROM THE PICK-UP MAGNETIC TRANSDUCER (control unit terminals 63 - 64)
ADJUSTMENT OF RUNNING ENGINE THRESHOLD
Normally no adjustment needs to be carried out, but if it is necessary to carry it out: stop the engine.
Choose the voltage threshold coming from the charging alternator (terminal D+).
Adjustment range 3 to 12 (12V) 6 to 24 (24V). Factory setting 7V (14V).
Factory setting 7V, 14V.
OVERSPEED ADJUSTMENT
RUNNING ENGINE
THRESHOLD 66
RUNNING ENGINE
THRESHOLD RPM
OVERSPEED
7 V
600 RPM
7 V
600 RPM
1860 RPM
1860 RPM
Decreases
Increases
Press to choose the voltage thresh-
old.
Press to choose at how many revs
you want to disable the starter motor.
Adjustment range 300 to 4000 RPM.
Press to choose the
overspeed threshold.
Adjustment range 1530 to 5100 RPM.
Press to
display
.
Factory setting
Factory setting
Factory setting
Threshold
NECESSARY PROGRAMMING
(With terminal 65 of the control unit
connected)
ADJUSTMENT OF RUNNING ENGINE AND OVERSPEED
with signals coming from the W of the charging alternator (control unit terminal 65)
PICK-UP
(control unit terminals 63-64)
ADJUSTMENT OF RUNNING ENGINE THRESHOLD
- first carry out tachometer adjustment
Normally no calibration needs to be carried out, but if it is necessary to carry it out:
stop the engine.
Run the engine at a costant and known rpm value
(for example by means of a portable revolution counter).
Run the engine at a costant and known rpm value
(for example by means of a portable revolution counter).
• ADJUSTMENT OF RUNNING ENGINE THRESHOLD no adjustment
• TACHOMETER ADJUSTMENT see page 5 ADJUSTMENT OF TACHOMETER WITH GENERATOR FREQUENCY
• OVERFREQUENCY ADJUSTMENT - see page 12 GENERATOR OVERFREQUENCY
TACHOMETER ADJUSTMENT
NECESSARY PROGRAMMING
(With terminals 63-64 of the control
unit connected)
PICKUP CALIBRAT.
3,000 RPM
Press and wait for the system to
write PROGRAMMED.
To stop press button
PICKUP CALIBRAT.
PRESS START
With this signal do not connect terminal 65
Setting
with control unit
connected to D+
(control unit
terminal 66)
of the
pre-excitation
alternator.
Setting with
control unit
connected to
the W
(
control unit
terminal 65
)
of the pre-exci-
tation alternator
or to the
yellow wire
of the perma-
nent magnet
alternator.
Press to
display.
Press to
display.
Press and
wait for the
system to write
PROGRAMMED.
Press to
display.
Press and
wait for the
system to write
PROGRAMMED.
Press and
wait for the
system to write
PROGRAMMED.
Start the engine
whit the button
.
PICKUP CALIBRAT.
3000 RPM
PROGRAMMING
Set the rpm of the engine
read on the portable
tachometer.
Factory setting
RPM/W CALIB.
PRESS START
Press to
display.
Start the engine
whit the button
.
RPM/W CALIB.
3000 RPM
Set the rpm of the engine
read on the portable tacho-
meter.
RPM/W CALIB.
3000 RPM
Press and wait for the system to
write PROGRAMMED.
To stop press button
Factory setting