Maple Systems HMI5000 Series - Manual (Page 8)

8 HMI5000 Series Installation Guide
1010-1005 Rev 05 www.maplesystems.com
Figure 3: Power Line Filter Connection
Cable Routing and Noise Immunity
Follow these guidelines when routing cables to the HMI:

Always route the HMI communication cable and the power cable
away from any AC voltage or rapidly switching DC control
lines.

Never bundle the HMI cables together with 120VAC power
wires or with relay wiring.

Try to keep at least 8 inches (20 cm) of separation between the
HMI cables and other power wiring. If voltages greater than
120VAC are used in the system, greater separation is required.

If the HMI cables must come near AC wiring, make sure they
cross at 90 degrees.

Run AC power wires in a separate grounded conduit to reduce
electrical noise interference.

Keep the cable lengths for the HMI as short as possible. Do not
coil excess cable and place it next to AC powered equipment.

Cover any equipment used in the enclosure that operates at high
frequency or high current levels with a grounded metal shield.