User Manual

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• Use separate paths to route the wiring for power and devices. If the
power wiring and device wiring must cross paths, make sure the wires
are perpendicular at the intersection point.
• Do not run signal or communications wires and power wires in the
same wire conduit. To avoid interference, wires with different signal
characteristics should be routed separately.
• You can use the type of signal transmitted through a wire to
determine which wires should be kept separate. The rule of thumb is
that wiring that shares similar electrical characteristics can be
bundled together.
• Keep input and output wires separate.
• We strongly advise that you label wiring to all devices in the system.
Grounding the IMC-21GA
Grounding and wire routing help limit the effects
of noise due to electromagnetic interference
(EMI). Run the ground connection from the
ground screw to the grounding surface
before
connecting
the devices.
ATTENTION
This p
roduct is intended to be mounted to a well-grounded
mounting surface, such as a metal panel.
Wiring the Power Inputs
The 4-contact terminal block connector on the IMC-21GA’s top panel is
used for the IMC-21GA’s two DC inputs. The top and front views of one of
the terminal block connectors are shown here.
STEP 1:
Insert the negative/positive DC wires
into the V
-/V+ terminals.
STEP 2: To keep the DC wires from pulling loose,
use a small flat
-
blade screwdriver to tighten the
wire
-clamp screws at the front of the terminal
block connector.
STEP 3:
Insert the plastic terminal block
connector prongs into the terminal block receptor
located on
the IMC-21GA’s top panel.