Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX - Manual (Page 38)

2-20 Mounting and Wiring Your 1336 IMPACT Drive
Observe all applicable safety and national and local regulations when
selecting the appropriate wire size for your system. Due to the drive
overload capacity, the conductors for the transformer primary and
secondary must be sized (at a minimum) for 125% of the maximum
motor current. The motor conductors must also be rated for 125% of
the full load motor current. The distance between the drive and motor
may affect the size of the conductors used.
To protect against interference, use shielded type wire in control
circuits. A shielded wire is required for all signal wires. The
recommended conductor size must be a minimum of 0.82mm
2
(16 AWG). The best interference suppression is obtained with a wire
having an individual shield for every twisted pair. Figure 2.4 shows
the recommended cable shielding.
Figure 2.4
Cable Shielding Recommendations
By-Pass Contactors
Please read the following Attention regarding by-pass contactors.
Signal
Signal
Shield
Signal
Signal
Signal
Signal
Shield
Signal
Signal
Shield
Signal
Signal
TE
TE
TE
2-Conductor Shielded Cable
Shield Connection
Multi-Conductor Shielded Cable with
Individual Shielded Twisted Pairs
2-Conductor Shielded Cable
!
ATTENTION: An incorrectly applied or installed
system can result in component damage or reduction in
product life. The most common causes are:
• Wiring AC line to drive output or control terminals.
• Improper by-pass or output circuits not approved
by Allen-Bradley.
• Output circuits which do not connect directly to the
motor.
• Incorrect or inadequate AC supply.
• Excessive ambient temperature.
Contact Allen-Bradley for assistance with application
or wiring.