E-AC Drive Hardware Installation Guide Appendix B – Regulatory Compliance: UL and CE
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If you use a screw terminal cable breakout device, be sure to properly enclose all
exposed conductors to avoid contamination and to reduce the risk of electrostatic
discharge. I/O must utilize high quality shielded cabling (85% braid coverage
minimum), which must be RF earth bonded as shown above.
Panel Mounting the E-AC Drive
The mounting panel must be properly earthed and paint must be removed from
drive mounting locations. You must fasten the motor shield (braid) close to the
drive’s heatsink.
If you use a screw terminal cable breakout device, be sure to properly enclose all
exposed conductors to avoid contamination and to reduce the risk of electrostatic
discharge. I/O must utilize high quality shielded cabling (85% braid coverage
minimum), which must be RF earth bonded as shown above.
System Installation
If you mount the E-ACDrive in an enclosure, terminate cable braids (screens) at
the entrance of the enclosure. However, the motor braid must be returned only to a
location close to the drive’s heatsink.
The next figure shows a typical EMC installation.
Drive I/O Cable
Motor
Cable
E-AC Drive
Mount to earthed metal
panel. Remove paint
from mounting locations.
SERIES
DRIVE I/O
MOTOR
PWR/FLT
Compumotor
L1
N
A +
A -
B +
B -
120V
P clip braid to mounting
surface; make loop
as short as possible
Ferrite
absorber
Ferrite
absorber
Motor
Varistor
(3 places)
L1
N
Earth
VAC Mains
Filter
EMC Installation