Maximum Motor Cable Length; Connections And Grounding; Emission Compliance And Installation Requirements Table - Allen-Bradley PowerFlex 527 User Manual

Chapter 1 Installation/Wiring
40
• Maximum motor cable length must not exceed the maximum length
indicated in PowerFlex 527 RF Emission Compliance and Installation
Requirements on page 40
limits for the specific standard and installation environment.

Connections and Grounding

Shielded enclosure (1)
Enclosure ground connection
Building structure steel
(1) Some installations require a shielded enclosure. Keep wire length as short as possible between the enclosure entry point and the
EMI filter.
PowerFlex 527 RF Emission Compliance and Installation Requirements
Filter Type Standard/Limits
EN61800-3 Category C1
EN61000-6-3
CISPR11 Group 1 Class B
Internal –
(1)
External 30 m (16 ft)
(1) See Appendix B for more information on optional external filters.
Additional Installation Requirements
This section provides information on additional requirements for Class C1 and
C2 installation, such as enclosures and EMC cores.
EMC cores are included with:
IMPORTANT
• drives that have an internal EMC filter (25x-xxxxN114)
• external EMC filter accessory kit (25-RFxxx)
An enclosure, shielded input cable, and EMC cores are not required to meet
IMPORTANT
class C3 requirements.
Rockwell Automation Publication 520-UM002B-EN-E - December 2017
for compliance with radio frequency emission
EMI filter
R/L1
L1 L1'
S/L2
L2 L2'
T/L3
L3 L3'
Shielded motor cable
EN61800-3 Category C2
EN61000-6-4
CISPR11 Group 1 Class A
(Input power ≤ 20 kVA)
10 m (33 ft)
100 m (328 ft)
IP 30/NEMA 1/UL Type 1
option kit or EMC kit
EMI fittings and metal conduit
U/T1
V/T2
W/T3
EN61800-3 Category C3
(I ≤ 100 A)
CISPR11 Group 1 Class A
(Input power > 20 kVA)
20 m (66 ft)
100 m (328 ft)