11
GENERAL WIRING INSTALLATION PROCEDURE
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(CONTINUED)
Theory of Operation, explaining how the KSM module works:
Once installed and wired properly, the LED on the End-Faceplate of the KSM will
be illuminated whenever the KSM contactor relay is closed. When the LED is
illuminated, the contactor is closed; the KAPower Module is running parallel with
the vehicle or equipment batteries and electrical system.
When the DPST switch is depressed you are closing the contactor inside the KSM
enclosure, using power from the KAPower module, regardless of the state of
charge of the vehicle or equipment’s batteries. When depressing the DPST switch
you are also engaging the cranking motor circuit. This is done by wiring and
using the recommended electrical circuit, displayed on the schematic (page 13).
By doing so, you have tapped into the OEM (Original Equipment Manufacture)
electrical circuit allowing both the KSM and the OEM cranking motor circuit to
be engaged, simultaneously. Once the engine starts, the Programmable Logic
Controller (PLC) inside the KSM monitors the condition of the KAPower Module
and will close or open the Contactor Relay inside the KSM, based on the
preprogrammed parameters inside the PLC. When the engine is stopped, the
equipment is turned off, the contactor opens and the KAPower module remains
isolated, waiting for the next engine-starting event, the pressing down of the
DPST switch.
The PLC preprogrammed functions:
The PLC has been preprogrammed to monitor and control the state-of-charge of
the KAPower capacitor module based on temperature, voltage & time. Once a
voltage signal is received at pin four (4) of the Wiring Interface Connector the
PLC “wakes-up” and will determine when and how long to keep the contactor
closed. Remember, anytime the LED Status Indicator is illuminated the contactor
is closed. In a typical engine-starting event you will see the LED illuminate during
engine cranking and then go out for several seconds after the engine has started.
The LED will then illuminate again and could remain illuminated for several
seconds based on the condition of the KAPower module. The LED may even begin
to “cycle” depending on the vehicle or system voltage during the recharging
events.
The J1939 connector is used for KBI Factory programing only. Contact KBI for
details.
