Delta Tau PMAC Pack, Справочник по аппаратуре

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PMAC-Pack
12 Overview
Standard PMAC-Pack
A standard PMAC-Pack provides four encoder inputs and four Digital to Analog Converter (DAC)
outputs, which may be used for control of up to four noncommutated axes or two commutated axes.
Figure 6-1, 4-Axis Non-Commutated System Interconnection Diagram, shows the connections necessary
for a typical installation. Additional options and accessories may be built into the PMAC-Pack case as
listed in Table 1-1.
Note:
Non-Commutated axes refer to axes driven motors which PMAC does not
commutate. PMAC provides a differential
)
10V torque or velocity command per
axis.
External Connections
There are many connectors on the front panel of the PMAC-Pack. Table 1-2 lists each of these connectors
and their functions.
Axis Connections
Each of the four axes on the PMAC-Pack have screw terminal connectors labeled ENCODER, SERVO,
and FLAGS.
Table 1-1. PMAC-Pack Internal Options and Accessories
Option/Accessory Number Definition
OPT-5A
40mHz Flash-backed Memory CPU option
OPT-5B 60mHz Flash-backed Memory CPU option
OPT-6 Extended servo algorithm
OPT-9LPP
Optional RS422 Interface (required for multi-drop
communications to several PMACs on single serial
line)
ACC8D OPT-2PP 4-Channel Voltage to Frequency Converter for use with
stepper motor pulse and direction drives
ACC8D OPT-4PP 40 W 4-Channel linear amplifier for hydraulic valves
ACC8D OPT-4APP 150 W 4-Channel PWM amplifier for small DC brush
motors
ACC26APP Serial Communications Isolator and Converter
ACC28APP 4 Channel 16 bit A/D Converter card
ACC39PP Handwheel Encoder Interface (5th Encoder Input)
Machine Connections
In addition to the axis connections, JOPT OUTPUT, JOPT INPUT, FLT RELAY, JDISP, JPAN, JTHW,
JRS232, JRS422, and 100-240 VAC connectors are provided for machine connection.
Expansion Pack Connection
All PMAC-Pack's have a portal on the right side of the casing which allows access to a 50 pin box header
connector. This header is the JEXP header on the internally mounted PMAC-Lite card.
Accessory Connections
The TBAMP connector pertains only to PMAC-Packs configured with stepper motor V/F converters or 4
channel amplifier accessories. The JHW connector pertains only to PMAC-Packs configured with the
handwheel encoder (5th encoder channel) accessory. The JRS422 connector pertains only to PMAC-
Packs configured with the RS422 communications option. PMAC-Packs without these options retain the
connector ports, however, nothing is internally connected to them.