EATON
HFX Product Family Installation and Operation Manual E-ELCL-II002-E2 July 2019
20
HFX Product Family
HFX12m & HF20m Dimensional Data
4X .256
6.50
4.654
118.22
5.144
130.67
5.756
146.21
5.282
134.17
4X .379
9.61
2X 2.305
58.55
4X .379
9.61
2.305
58.55
13.2
Mounting Considerations
The following procedure is recommended when
mounting the HFX series controllers.
•
Ideally the controller should be mounted on a
vertical flat surface with the open end of the
connector facing down.
•
Use four standard threaded fasteners to securely
mount the controller to the surface (either 6mm or
¼” diameter are acceptable).
•
Note that the HFX series is designed for ambient
operating temperatures up to 105°C maximum.
The housing is constructed of cast aluminum
and it allows for effective heat dissipation when
mounted to metal surfaces and/or when adequate
ventilation is available.
•
When mounting multiple controllers inside a
vented enclosure please allow for a minimum of
2” between adjacent controller surfaces so that
adequate air flow is present to aid in cooling.
•
When mounting a controller(s) inside a sealed
unvented enclosure, it is important to note that
the temperature rise above ambient is determined
by the size of the enclosure (surface area) and the
expected power dissipation of the controller(s).
A conservative guideline to use for the maximum
power dissipation expected from one HFX
controller is 50 watts.
•
Please check with your enclosure manufacturer
for appropriate guidelines concerning the
necessary enclosure volume to adequately limit
thermal rise below the maximum operating
temperature of 105°C
13.3
Recommended Wiring Practices
This section contains information about the controller
connectors and pin outs. Please use the following
recommended wiring practices when installing and
using the controller:
•
Ensure correct and adequate single point ground to
prevent ground loops.
•
Use twisted or twisted shielded pair cable for CAN
per the applicable standard.
•
Confirm that the CAN network is properly
terminated using 120Ω resistors.
•
Ensure the appropriate sized conductor cross
section is specified for the intended load current in
the harness design.
Note: Please review individual overcurrent shutdown values in
the configuration and use the correct wire gauge conductor to
accommodate maximum load current configured
•
Make sure that voltage drops are kept within
reasonable levels under maximum continuous load
conditions e.g. 1 volt on 12-volt systems and 2
volts on 24-volt systems.
•
Verify that the harness is constructed to meet the
needs of the application environment (e.g. shock,
vibration, moisture, temperature, chemicals, and
impact).
•
Make certain that the harness is designed and
constructed to minimize induced interference
resulting from EMI coupling between signal wires.
•
Separate power circuits from low-level signals.
•
All splices (soldered or crimped) should use
adhesive lined heat shrink tubing.
•
Make provisions for drip loops to attach devices in
exposed locations and prevent moisture entry and
formation.
•
Provide sufficient clearance from moving parts.
