Rockwell Automation Allen-Bradley 1305-AA02A, Руководство по установке

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Practices 4-11
Figure 4.9 Separating Susceptible Circuits
Common mode noise current returning on the output conduit, shielding or
armor can flow into the cabinet bond and most likely exit through the
adjacent input conduit/armor bond near the cabinet top, well away from
sensitive equipment (such as the PLC). Common mode current on the return
ground wire from the motor will flow to the copper PE bus and back up the
input PE ground wire, also away from sensitive equipment (Refer to
Proper
Cabinet Ground - Drives & Susceptible Equipment on page 4-12 ). If a
cabinet PE ground wire is run it should be connected from the same side of
the cabinet as the conduit/armor connections. This keeps the common mode
noise shunted away from the PLC backplane.
Drive Power
Wiring
PWM Drives
Power
Distribution
Terminals
Ground Bus
Sensitive
Equipment
Programmable Logic Controller
and Other Control Circuits
Drive Control and
Communications Wiring