Rockwell Automation SP120 ACDrive 115VAC, 1Ph, 230VAC, 1Ph/3Ph, 1/4-5.0HP - Manual (Page 72)

C-2 SP120 AC Drive Installation and Operation
English
C.2 Essential Requirements for a Conforming EMC
Installation
The following items are required for CE conformance.
• An input filter module (See Appendix A) must be installed to reduce conducted
emissions.
Compliance of the SP120 drive to the conducted emissions levels with appropriate
line filter module is as follows:
• Grounding of equipment and cable shields must be solid with low impedance
connections.
• All motor cables must use shielded cable, or be in grounded metal conduit.
• All control and signal wiring must use shielded cable or be in grounded metal
conduit.
• Ensure that the protective earth ground terminal (PE) of the filter is properly
connected with the protective earth ground terminal of the drive. The filter must be
solidly and permanently connected with the ground potential to avoid electric shock.
C.3 General Instructions for an EMC-Compliant
Installation
Motor Cable
The cable between the drive and motor must be 4-wire shielded cable (three phases
and ground).
Do not exceed the maximum motor cable length for the specific line filter module used.
Control Cable
Control wiring must use shielded cable or grounded metal conduit.
The shield must be connected to PE at both ends of the cable.
PWM Carrier Frequency
Motor Cable
Length Limit
< 16 kHz 10 m Class B
< 5 kHz 20 m Class B
< 16 kHz 50 m Class A