CONTREX MLP-Trim - Manual (Page 21)

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WIRING
This section contains the input, output and serial communications wiring information for
the MLP–Trim. Please read this section prior to wiring the MLP–Trim to ensure that you
make the appropriate wiring decisions.
NOTE: The installation of this motor control must conform to area and local electrical
codes. See The National Electrical Code (NEC,) Article 430 published by the
National Fire Protection Association, or The Canadian Electrical Code (CEC).
Use local codes as applicable.
Use a minimum wire gauge of 18 AWG.
Use shielded cable to minimize equipment malfunctions from electrical noise.
Keep the AC power wiring (J4) physically separated from all other wiring on the
MLP–Trim. Failure to do so could result in additional electrical noise and cause
the MLP–Trim to malfunction.
A hand operated supply disconnect device must be installed in the final applica-
tion. The primary disconnect device must meet EN requirements.
Inductive coils on relay, contactors, solenoids that are on the same AC power
line or housed in the same enclosure should be suppressed with an RC net-
work across the coil. For the best results, use resistance (r) values of 50 ohms
and capacitance (c) values of 0.1 microfarads.
Install an AC line filter or isolation transformer to reduce excessive EMI noise,
such as line notches or spikes, on the AC power line.
DANGER
Hazardous voltages.
Can cause severe injury, death or
damage to the equipment.
The MLP–Trim should only be
installed by a qualified
electrician.