Section 40 00-02-0716
2013-06-03 - 34 -
Wire standby battery charger directly to battery.
Standby chargers must be wired directly to the battery. Failing to do this may result in erratic operation
due to electronic "noise" coupled into the microprocessor.
Special precautions for spark ignition engines
Magnetos and ignition coils produce high voltage and cause high frequency interference. The EMS
PRO Controller is designed to filter out much of this interference; however, precautions must be taken
to protect the controller. Sender and shutdown wiring must be routed away from the magneto and
spark coil wiring. Resistor spark plugs and spark plug wires reduce electrical interference and may also
be required in especially "noisy" environments.
Use shielded cable on magnetic pickup
Shielded cable is recommended for connecting the magnetic pickup to the EMS PRO Controller. This
helps prevent signal loss and the possible coupling of electrical interference into the relatively sensitive
speed sensing circuit. The shield wire should be grounded on the customer’s end.
NOTE: Proper care during installation will help the EMS PRO Controller live a long and
trouble-free operating life. If for any reason a question arises during installation, feel free
to give Enovation Controls a call.
Fuses
There are two 10A fuses installed in the controller. One is on the faceplate and is used for the main
power to the panel (Glass SAE type). The second fuse (ATC type) is located under the faceplate and is
used for the cranking circuit.
Communications
CAN
CAN port designated for J1939 communications.
RS-485
RS-485 port designated for externally mounted PVA Gages or Modbus RTU (slave to master) for
SCADA. If no PVA gages are selected for use in the S numbers, Modbus is available on this port using
the same Modbus map detailed under RS-232.
NOTE: Harness kit 40000536 is available to “bring out” the (2) wire RS485 to the
bottom of the enclosure. The RS232 is accessed via a DB9 connector located on
the display/CPU board. Customer modification to the enclosure is required to use
either port.
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