Watlow Silver Series OIT - Manual (Page 8)

8 Watlow Silver Series OIT Installation Guide
0600-0069-0000 Rev D
- Never bundle the OIT cables together with 120VAC power wires
or with relay wiring.
- Try to keep at least 8 inches (20 cm) of separation between the
OIT cables and other power wiring. If voltages greater than
120VAC are used in the system, greater separation is required.
- If the OIT 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 OIT 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.
Installation
It is necessary to follow all installation procedures described in this
chapter for electrical noise immunity and CE compliance.
Your Maple Systems OIT is designed to connect easily to your PLC.
External rear connectors provide quick connections for power,
communications and programming wiring.
Connect the OIT to Power
Use the separate 3-position terminal block supplied with the OIT to
provide power to the OIT.
The power cable for the OIT should be 18AWG, 2-conductor wire with a
shield drain wire and protective shield (foil/braid). You may buy cable
P/N 6030-0009 by the foot from Maple Systems to make your own
power cable.
Always run the DC ground wire directly back to the signal return of the
power supply. Do not use the chassis ground wire as your signal return.