
10 Rockwell Automation Publication 23PFC-IN001B-EN-P - December 2018
PowerFlex DC Field Controller
Installation Requirements Related to EN 61800-3 and the EMC Directive
• The field controller must be earthed (grounded) as described in this Installation Instructions.
• PowerFlex DC field controllers require the use of an external EMC filter to comply with the EMC Directive and emission limits of EN
61800-3: 2004. PowerFlex DC field controllers have been tested and verified for compliance to the emission limits of EN 61800-3: 2004 by
using only the specific input filters and motor cable lengths that are identified in the Standards and Limits for EMC Input Filters table.
• Output power wiring to the load must employ one of the following solutions.
• Cable with a braided shield providing 75% or greater coverage
• Cables that are housed in metal conduit
• Cables with equivalent shielding
Continuous shielding must be provided from the field controller enclosure to the load enclosure. Both ends of the load cable shield (or
conduit) must terminate with a low-impedance connection to earth.
• The load-end cable shield or conduit must terminate in a shielded connector and be properly installed in an earthed wiring box that is
attached to the load. The load wiring-box cover must be installed and earthed.
• All control (I/O) and signal wiring to the field controller must use one of the following solutions.
• Cable with a braided shield providing 75% or greater coverage
• Cables that are housed in metal conduit
• Cables with equivalent shielding
When shielded cable is used, terminate only the field controller end of the cable shield to earth with a low-impedance connection.
• Load cables must be separated from control and signal wiring wherever possible.
• The maximum length of the load cable must not exceed the length that is specified in the Standards and Limits for EMC Input Filters table.
The maximum length that is specified is required for compliance with radio frequency emission limits for the specific standard and
installation environment.
Standards and Limits for EMC Input Filters
Field Controller
Frame
CatalogNumber
Standard / Limits (Compliance with Any of the Limits in the Pollution Degree Ratings according to EN 61800-5-1Table on Page 10 Satisfies RF Emission
Requirements for the EMC Directive)
EN61800-3 Category C1
EN61000-6-3 CISPR 11Group
1 Class B
EN61800-3 Category C2
EN61000-6-4 CISPR11 Group
1 Class A…P < 20 kVA
CISPR11 Group 1
Class A…P > 20 kVA
EN61800-3 Category
C3…I < 100 A
EN61800-3 Category
C3…I > 100 A
Frame A
23PFCx017…
23PFCx120
Compliance may be possible with
supplementary mitigation
(Consult factory)
Compliance may be possible
with supplementary mitigation
(Consult factory)
RF line filter required(2)
50 m motor cable limit
(2) Rasmi Electronics Ltd manufactures the RF 3xxx-SIEI EMC filter. xxx designates filter current rating. See the manufacturer published literature for details.
RF line filter required(2)
50 m motor cable limit RF line filter required(2)
50 m motor cablelimit
Frame B
23PFCx245…
23PFCx570
Compliance may be possible with
supplementary mitigation
(Consult factory)
RF line filter required(1)
50 m (164 ft) motor cable limit
(1) Rasmi Electronics Ltd manufactures the RF 3xxx-MHU EMC filter. xxx designates filter current rating. See the manufacturer published literature for details.
RF line filter required(1)
50 m (164 ft) motor cable limit
RF line filter required(1)
50 m (164 ft) motor cable
limit
RF line filter required(1)
50m (164ft) motorcablelimit
More Stringent Limits Less Stringent Limits
IMPORTANT Use of EMC filters not listed in the Standards and Limits for EMC Input Filters table must be verified in the application. Additional filters are listed in the
Alternate EMC Filters tables on page 11.
Pollution Degree Ratings according to EN 61800-5-1
Pollution
Degree Description
1 No pollution or only dry, non-conductive pollution occurs.The pollution has no influence.
2 Normally, only non-conductive pollution occurs. Occasionally, however, a temporary conductivity due to condensation can be expected, when the field controller is out of operation.
3 Conductive pollution or dry non-conductive pollution occurs, which becomes conductive due to condensation, which can be expected.
4 The pollution generates persistent conductivity that is caused, for example, by conductive dust, rain, or snow.