Altronic VariSpark CPU-XL, Руководство по эксплуатации

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CPU-XL VariSpark IOM 07-21
All rights reserved © ALTRONIC, LLC 2021
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1.0 OVERVIEW
1.1 The Altronic CPU-XL VariSpark Digital Ignition with enhanced display is a DC-
powered, microprocessor-based, capacitor discharge system applicable to slow
and medium speed, stationary, natural gas-fueled engines. It features crankshaft-
triggered timing accuracy and the capability to vary timing electronically by
several means, including an external 4-20mA control signal. This system is field-
programmable and offers a variety of advanced control, emissions reduction,
primary and spark diagnostic, self-diagnostic, serial communications and engine
protection features.
2.0 COMPONENTS
2.1 The system consists of a Logic/Display Module, a Junction/Diagnostic Module,
up to two Output Modules, up to four EZRails, two magnetic pickups and cables,
a Hall-effect pickup and trigger magnet (4-cycle engines only), appropriate
cables and harnesses, and an ignition coil for each spark plug. For a total system
overview, refer to Figure 1.
2.2 Logic/Display Module (291400-1) – Typically mounted in the engine control
panel, the Logic/Display Module has a graphical, color, backlight LCD display
showing the operating status, engine RPM, energy level, spark profile in use,
current loop input value and ignition timing. Additional display screens show
set-up and diagnostic information. Its menu structure is similar to those of the
CPU-2000 and CPU-95 systems.
2.3 Output Module(s) (291410-1)– Connected by harness to the Junction/Diagnostic
Module, an Output Module is installed on each bank of the engine. This device
generates the high voltage DC power and distributes this energy to the ignition
coil rails. Two modules are required to run V-type engines with one module
generating firings for each bank. Each Output Module can drive 10 separate
outputs and each output can be used to drive one coil or two coils for engines
having two spark plugs per cylinder.
2.4 Junction/Diagnostic Module (291405-2) – The Junction/Diagnostic Module
replaces the traditional on-engine junction box and serves several purposes. The
Junction/Diagnostic Module wiring is used to determine which cylinder is fired for
each output event of the Logic/Display Module. The CPU-XL ignition fires in the
same order as all other Altronic digital ignition systems. The first firing event is the
one following the reset. The firing events are brought out in order of occurrence
(1, 2, 3, 4…) on the 20-position terminal strip inside the Junction/Diagnostic
Module.
2.5 Ignition Coil/EZRail Module(s) – The CPU-XL VariSpark ignition coils and primary
wiring are integrated into a series of engine-specific EZRail modules. These
coil/rail modules are connected by harness to the Output Module and deliver a
factory-certified and tested mounting and on-engine wiring solution. Primary
cables and associated connectors are eliminated in the high current portion of the
system, thereby enhancing reliability.
2.6 Harnesses (all connectors sealed with epoxy potting)
Logic/Display Module to Junction/Diagnostic Module – 293030-L, one straight
17-pin connector.
Junction/Diagnostic Module to Output Module – 793101-L, one straight and one
right-angle 19-pin connector or 793102-L, two right-angle 19-pin connectors.
Output Module to EZRail Assembly – 793102-L, two right-angle 19-pin connectors (max. 48").
2.7 To allow for a simple and economical upgrade of existing Altronic CPU-2000
installations, the CPU-XL utilizes existing CPU-2000 magnetic pickups, Hall-effect
pickup and trigger magnet, pickup cables, and inter-module wiring harnesses.
2.8 Power requirement is 24Vdc, 30 amperes.
NOTE: All new installations must use
the 291405-2 Junction/Diagnostic
Module and the 791401-2 Coil.
The -1 versions of these parts are for
replacement application only.
WARNING: Deviation from these
instructions may lead to improper
engine operation which could cause
personal injury to operators or other
nearby personnel.
The ignition system must be
configured prior to use on an
engine. Refer to section 19.9 To
view the current configuration.
Reference form CPU-XL VariSpark
PI for instructions describing how
to configure the ignition system.
Verify eeprom programming prior to
starting engine.