Dc Link Module; Drive Interface Module; Internal Shunt Resistor For The 5 And 10 Kw System (Standard; Communication Specifications - AB Quality Allen-Bradley 1394 User Manual

Communication Specifications

DC Link Module

The power dissipation for the 1394-DCLM is shown below.
The: For the 1394-DCLM is:
Power dissipation 4.225 W maximum

Drive Interface Module

The power dissipation for the 1394-DIM is shown below.
The: For the 1394-DIM is:
Power dissipation 30 W maximum

Internal Shunt Resistor for the 5 and 10 kW System (standard)

When the shunt resistor inside 1394x-SJT05 and 1394x-SJT10 system
module is active, some additional power will be dissipated at the
system module. Its maximum dissipation is 200W. Most applications
will use less than 10% of this capacity.
The:
Rating of the internal shunt resistor
Resistance of the internal shunt resistor
The communication specifications are listed in the tables starting
below.

Encoder Input Specifications

The table below lists the encoder input specifications for the system
module (1394x-SJTxx-C-xx, -L-xx, and -T-xx systems).
The:
Number of encoder inputs
Type of encoder input
Encoder interface IC
Compatible encoder types
Decode modes
Maximum encoder frequency 4,000,000 counts per second (4 MHz). This is equivalent to
Input impedance
Encoder power
Specifications
Is:
200W continuous, 40,000W peak (two second
maximum on time)
16 ohms
Is:
4 (axis 0, 1, 2, and 3) for 1394 x -SJT xx -C- xx and -T- xx systems
2 (axis 0 and 1) for 1394C-SJT xx -L- xx systems
Incremental AB quadrature; optically isolated, differential
with marker channel
AM26LS32 or equivalent
Differential, TTl-level (5V DC) line driver outputs, with or
without marker
4 times quadrature, step/direction, count up/count down
a channel frequency of 1 MHz in 4x quadrature decode mode.
7 kohms minimum (each input)
5V DC @ 1A, user supplied
Publication 1394-5.0 — May 2000
A-11