I
NSTALLING
THE
RBE2-8
RBE2-8 User Manual
ADVANCED MICRO CONTROLS INC.
20
1.2 General Wiring Guidelines (continued)
1.2.2 Grounding
All ground connections must be permanent and continuous to provide a low-impedance path to earth
ground for induced noise currents.
The chassis of the RBE2-8 must be connected to chassis ground through a grounding wire connected to
the ground connection of the power supply connector.
The power supply that is attached to the RBE2-8 must be connected to the same chassis ground as the
unit to avoid ground loops.
All isolation transformer secondary windings must be grounded to the same earth ground as the
machine ground.
1.2.3 Surge Suppression
Surge suppression devices should be placed across the coil of an inductive device to reduce the effects
of high voltage transients (i.e., varistors, diodes, etc.). This includes any inductive load that is powered
by the same supply used to power the RBE2-8 and any of the loads attached to its relay outputs.
1.2.4 Mounting
If mounting an RBE2-8 on an enclosure door, do not rely on the hinge to make an electrical connection
between the door and the enclosure. A bonding wire from the door to the rest of the enclosure must be
installed.
When mounting an RBE2-8 on DIN Rail, the included plastic DIN rail brackets will electrically isolate the
unit. A grounding wire must be run from the grounding pin on the power connector to an earth ground point.
1.3a DIN Rail Mounting
Follow these instructions when mounting an RBE2-8 on a DIN rail.
1.3a.1 Reattach the DIN Brackets (if needed)
The RBE2-8 ships with the DIN brackets installed. Figure T1.1 shows how to install the DIN brackets if con-
verting an RBE2-8 from its panel mount configuration.
Figure T1.1 Attaching DIN Brackets
1) Remove the two screws that hold the bracket in place.
2) Remove the bracket.
3) Slide the plastic DIN adapter into the
channel to install it.
4) Reverse the bracket and reattach it to the relay board with
the two screws.
REPEAT THESE STEPS TO CONVERT THE OTHER SIDE.
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