IES-P3073GC Series User Manual
ORing Industrial Networking Corp
12
3.3.1 Grounding
Grounding and wire routing help limit the effects of noise due to electromagnetic interference
(EMI). Run the ground connection from the ground screw on the power module to the
grounding surface prior to connecting devices.
3.3.2 Fault Relay
The switch provides fail open and fail close options for you
to form relay circuits based on your needs. If you want the
relay device to start operating at power failure, attach the
two wires to COM and fail close to form a close circuit, vice
versa. The relay contact of the 2-pin terminal block connector will respond to user-configured
events according to the wiring.
3.3.3 Redundant Power Inputs
The switch has two sets of power inputs, power input 1 and
power input 2, which sit on the front panel along with LAN ports.
Follow the steps below to wire redundant power inputs.
Step 1: insert the negative/positive wires into the V-/V+
terminals, respectively.
Step 2: to keep the wires from pulling loose, use a small flat-blade screwdriver to tighten the
wire-clamp screws on the front of the terminal block connector.
ATTENTION
1. Be sure to disconnect the power cord before installing and/or wiring your
switches.
2. Calculate the maximum possible current in each power wire and
common wire. Observe all electrical codes dictating the maximum
current allowable for each wire size.
3. If the current goes above the maximum ratings, the wiring could
overheat, causing serious damage to your equipment.
4. Use separate paths to route wiring for power and devices. If power wiring
and device wiring paths must cross, make sure the wires are
perpendicular at the intersection point.
5. Do not run signal or communications wiring and power wiring through the
same wire conduit. To avoid interference, wires with different signal
characteristics should be routed separately.
6. 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
sharing similar electrical characteristics can be bundled together
7. You should separate input wiring from output wiring
8. It is advised to label the wiring to all devices in the system