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NOTE: Engines using posi-
tive ground DC accessories
or starter motors will require
a separate dedicated power
supply for the CPU-95. A
separate power supply is re-
quired because the CPU-95
system is a negative ground
system and the minus must
be grounded.
IMPORTANT:
For proper operation of the CPU-95 system, voltage
and current supplied must be sufficient during all selected modes
FIGURE 5
of operation.
er hookup:
1. CURRENT DRAW PER SYSTEM:
Formula varies depending on number of outputs used, en-
gine cycle and RPM, and use of the multi-strike feature.
2. MINIMUM WIRE GAUGE REQUIREMENTS:
CHART 1 OF FIGURE 5
run between the power source and the CPU-95 Ignition Mod-
ule.
3.
MULTIPLE ENGINE INSTALLATIONS:
Multiply current required per system by the number of en-
gines. Where more than one engine is powered from a com-
mon power source, see
wire size required.
9.3
WIRING SEPARATION:
Power wiring and signal wiring (pickups and communications) must
be in separate conduits and conduit entries into the Ignition Mod-
ule to avoid undesired electrical interaction. All conduit entries are
sized for a ½"-14 NPT male conduit fitting. Separate as follows:
RIGHT CONDUIT ENTRY
CENTER CONDUIT ENTRY
LEFT CONDUIT ENTRY
9.4
RIGHT ENTRY:
Input power supply wires (16 AWG minimum) should enter the right
conduit entry and connect to the POWER (24 VDC + and GROUND −) ter-
minals of the terminal block.
9.5
CENTER ENTRY:
Run a separate conduit to the center entry for the two (2) magnetic
pickup cable assemblies. These should terminate per description on
the cover label in the Ignition Module which is
4-CYCLE ENGINE ONLY: The cable from the Hall-effect pickup must also
enter through the center hole and be connected as shown.
INSTALLATION INSTRUCTIONS
provides these details regarding the DC pow-
gives the requirement vs. the length of
CHART 2 OF FIGURE 5
Input power wires
Magnetic pickups and Hall-effect pickup
Control inputs, alarm outputs, serial communica-
tions and power feed to Display Module
SEE FIGURE
10.
www.altronicinc.com
for the minimum
SEE FIGURE
10.
5
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