DE-3000 IOI 7-17
All rights reserved © ALTRONIC, LLC 2017
45
STATE 7: ENGINE RUNNING UNLOADED WARMUP
After the engine has started and the cranking device is turned off (system STATE 7
on the sequence chart), the 4-20mA RPM control output to the governor will be at
the IDLE speed value. The RPM control output will stay at the IDLE value until a user-
programmed delay of 0 to 999 minutes as set by the WARM-UP TIMER is completed.
STATE 8: ENGINE RUNNING PID OUTPUT CONTROL STARTS
After the WARM-UP period ends the sequence begins system STATE 8, the
4-20mA control outputs begin to adjust from their default value according to the
programmed configuration. Since the programmed configuration is determined by
the USER it is not possible to define a particular behavior of the system as normal. A
brief description of a typical application configuration follows, although many other
control schemes are equally valid. Refer to FIG. 1, sequence of operation chart.
24.0
OEM ENGINE CONTROL
24.1 OEM ENGINE CONTROL can be used as an engine start-up in applications
where the DE-3000 is used to signal instructions to a controller, rather than
directly turning on and off fuel and ignition as is done in AUTO START. To use
the OEM ENGINE CONTROL option, select and configure it in the PC terminal
program under the Program Global Variables screen. The four output modules
on the power supply board should be configured as follows for OEM ENGINE
CONTROL: Out 1 for Driven Equipment Ready (DER), Out 2 for Start/Run Signal,
Out 3 Auxiliary if necessary, Out 4 for Pre/Post Lube. OEM ENGINE CONTROL
begins its sequence when an auto start command is sent to the DE-3000. The
various programmable timers for each module on the power supply board output
are shown below.
Auto Start Signal
– OR –
Stop/Fault
ON Time (during run)
ON Time
(1-5 s)
WARNING: WHEN PROGRAMMED FOR
MULTI-START, THE DE-3000 WILL AU-
TOMATICALLY ATTEMPT TO START THE
ENGINE AS MANY AS FOUR TIMES. RE-
STARTS ARE MADE BETWEEN 30 AND
90 SECONDS FOLLOWING AN OVER-
CRANK FAULT. PERSONNEL AROUND
THE ENGINE MUST BE NOTIFIED TO
TAKE THE NECESSARY SAFETY PRE-
CAUTIONS TO AVOID INJURY OR MAL-
FUNCTION.
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