Rockwell Automation 2094-xMxx-S Kinetix 6000 Multi-axis Servo Drives User Manual - Manual (Page 28)

28 Rockwell Automation Publication 2094-UM001H-EN-P - June 2013
Chapter 2 Planning the Kinetix 6000 Drive System Installation
Circuit Breaker/Fuse Options
The 2094-
xCxx-Mxx-S and 2094-xMxx-S drive modules and the Kinetix 6000M
integrated drive-motor system (2094-SEPM-B24-S IPIM module and
MDF-SB
xxxxx IDM units) use internal solid-state motor short-circuit
protection and, when protected by suitable branch circuit protection, are rated
for use on a circuit capable of delivering up to 200,000 A. Fuses or circuit
breakers, with adequate withstand and interrupt ratings, as defined in NEC or
applicable local codes, are permitted.
The 2094-AL09 and 2094-BL02 LIM modules contain supplementary
protection devices and, when protected by suitable branch circuit protection, are
rated for use on a circuit capable of delivering up to 5000 A. When these modules
are used, protection on the line side of the LIM module is required. Fuses must be
class J or CC only.
The 2094-AL
xxS, 2094-BLxxS, and 2094-XL75S-Cx LIM modules contain
branch circuit rated devices suitable for use on a circuit capable of delivering up
to 65,000 A (400V-class) or 100,000 A (200V-class).
Refer to the Line Interface Module Installation Instructions, publication
2094-IN005 , for power specifications and more information on using the LIM
module.
The Bulletin 140M and 140U products are another acceptable means of
protection. As with fuses and circuit breakers, you must make sure that the
selected components are properly coordinated and meet applicable codes
including any requirements for branch circuit protection. When applying the
140M/140U product, evaluation of the short circuit available current is critical
and must be kept below the short circuit current rating of the 140M/140U
product.
In most cases, class CC, J, L, and R fuses selected to match the drive input current
rating meets the NEC requirements or applicable local codes, and provide the full
drive capabilities. Use dual element, time delay (slow-acting) fuses to avoid
nuisance trips during the inrush current of power initialization.