Section 80
00-02-0829
2018-02-26
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9 -
2.3 Circuit Protection
A fuse or circuit break on the positive power input (connector J2) is required and should be
located near the power source (e.g. battery).
The outputs are monitored for over-current conditions and turn-off in the event of the fault. For
information on how to configure the output current limit, refer to Section 4.3.2 – Configure
2.4 Recommended Wiring Practices
This section contains information about the IX3212 connectors and pin outs. Please use the
following recommended wiring practices when installing and using the PDM:
•
Ensure correct and adequate single point ground to prevent ground loops.
•
Use twisted or twisted shielded pair cable for the CAN bus per the applicable standard.
•
Ensure the appropriate sized conductor is specified for the intended load current in the
harness design for the particular application.
o
SAE J1614 specifies requirements and design guidelines for electrical wiring
systems of less than 50 V and cable diameters from 0.35 mm
2
to 19 mm
2
used
on off-road, self-propelled earthmoving machines as defined in SAE J1116 and
agricultural tractors as defined in ASAE S390.
o
SAE J2202 recommends and describes the application of the primary wiring
distribution system of less than 50 V and includes wire sizes 0.5 mm
2
to 19 mm
2
on heavy-duty on-highway trucks.
o
SAE J1128, ISO 6722 and JASO D608-92 automotive wiring standards aid in
determining the recommended conductor sizing table for the respective 12V or
24V system that is powering the load.
o
ABA specifies a marine wiring standard that differs from SAE J1128.
•
Wire gauges should be capable of handling at least 135 percent of the circuit’s current
protection rating.
o
Determine the maximum load the wire is expected to carry, the location of wiring
(e.g. in a cab or engine compartment) and ambient temperature).
o
Determine the length of the wire needed to extend from the power source to the
load. Include the ground wire length if used.
