AB Quality Allen-Bradley 1394, User Manual

Page: 28 / 301

Publication 1394-5.0 — May 2000
1-14 Overview
Drive Interface Module
The 1394-DIM (Drive Interface Module) provides four channels of
analog output, four drive enable outputs, and four drive fault inputs.
The 1394-DIM allows the 1394x-SJTxx-C, -T, or -L system module to
be used to control any external drive with a
±
10V velocity torque
reference command and quadrature encoder output. Each 1394-DIM
can support up to four drives. However, the maximum number of axes
(1394-DIM controlled drives plus 1394x-AMxx axis modules) cannot
exceed four per 1394x-SJTxx-C or -T system module and one per
1394C-SJTxx-L system module. The 1394-DIM is not compatible
with the 1394x-SJTxx-A system module.
Figure 1.13
Drive Interface Module
DC Link Module
The 1394-DCLM (DC Link Module) provides additional load
leveling and energy storage (capacitance) for 1394 systems. This
allows additional regenerative energy to be stored during the machine
cycle, increasing system capacity, lowering cycle time, and avoiding
resistive heat loss. The module can be used alone or two modules can
be used to interconnect two 1394 systems using the DC Link cable.
Figure 1.14
DC Link Module