Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual - Manual (Page 84)

Publication 1398-5.2 – PDF 1997
6-20 Interfaces
J2 Breakout Board Assembly – European Union EMC
Compliance
Two options are available to achieve EMC compliance when a
ULTRA 100 Series drive uses the J2 Breakout Board Assembly to
transfer an unbuffered encoder signal to a control device. Either
method of installation reduces the radiated emissions to an acceptable
level. Be aware that either installation option is in addition to the EMC
requirements specified elsewhere in this manual.
●
Install the drive and J2 breakout board assembly (terminal block
and cable), and the pigtailed cable inside a grounded metal
enclosure.
- or -
●
Install ferrites of an appropriate rating at the specific locations:
1. J2 Cable – 230 Ohm @ 100 MHz toroid (FerriShield P/N
SS28B2032) immediately adjacent to the J2 connector on the
drive.
2. Pigtailed Motor Encoder Cable – 215 Ohm @ 100 MHz ribbon
cable clamp (Fair-Rite P/N 2643164051 and two clips Fair-Rite P/
N 0199001401) over the unshielded conductors.
Auxiliary Encoder Input Types
The drive may be electronically geared by a remote signal. Electronic
gearing may be driven by any of the following three signals:
A master incremental encoder that generates quadrature encoder
signals
Note: Drives are tested using specific installation methods, and the
information above is based on successful tests. If the drives are installed
in this manner, then compliance with European EMC requirements may
be expected, although it is impossible to guarantee that a specific instal-
lation will meet EMC requirements without testing it.
Figure 6.23 Auxiliary Encoder Inputs
A
B
STEP
DIR
CW
CCW