User guide

Rockwell Automation Publication 2094-UM003A-EN-P - May 2012 23
Planning the Kinetix 6000M System Installation Chapter 2
• Combined motor power cable lengths for all axes and hybrid cable lengths
for all IDM units on the same DC bus must not exceed 240 m (787 ft)
with 400V-class systems. Drive-to-motor power cables must not exceed
90 m (295.5 ft).
Refer to the System Design for Control of Electrical Noise Reference Manual,
publication GMC-RM001
, to better understand the concept of electrical noise
reduction.
Circuit Breaker/Fuse Options
The 2094-SEPM-B24-S IPIM module and the MDF-SBxxxxx 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-BL02 LIM module contains 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-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).
Refer to the Line Interface Module Installation Instructions, publication 2094-
IN005, for power specifications and more information on using the LIM
module.
Fuse Location and Replacement
The IPIM module uses internal fuses (see Figure 6) for short-circuit protection
of the DC bus. The recommended fuse is Bussmann FWP-50A14Fa. A fuse
replacement kit (catalog number 2094-SEPM-FUSE) is also available.
IMPORTANT
System performance was tested at these cable length specifications. These
limitations also apply when meeting CE requirements.