Delta Tau PMAC Pack, Hardware Reference Manual

Page: 111 / 121

100 PMACPack Options and Accessories
The analog inputs are optically isolated from the PMAC's digital circuits. Expanded documentation for
PMACPack ACC28 is under development. At present, request the ACC28 manual for further
information.
Accessory 39PP: Handwheel Encoder Interface Board
This accessory provides a basic interface to a single quadrature encoder. Typically, it is used for a
handwheel or similar master encoder. It interfaces to PMAC through the JPAN control panel port, so the
normal control panel functions must be disabled to use this accessory. Expanded documentation for
PMAC-Pack ACC39 is under development. At present, request the ACC39 manual for further
information.
PMAC-Pack Compatible External Accessories
Accessory 3: Serial Communications Cable
This is a three-meter (ten-foot) twisted shielded cable with a DB9/DB-25 connector on one end (for
connection to the host computer) and a DB9/DB25 connector on the other end (for connection to PMAC
Pack's serial port). If ACC-26 serial-communications-converter/opto-isolator card is purchased, make
certain that the correct interface cables (for connection to PMAC-Pack) are ordered. Multi-drop versions
of the cable are available for daisy-chained PMAC systems:
•
ACC-3PP232 : Single-drop 3-meter DB9-DB9 shielded cable (PMACPack w/standard. serial port)
•
ACC-3PP422 : Single-drop 3-meter DB25-DB25 shielded cable (PMAC-Pack w/ RS422 serial port)
•
ACC-3PPSPC: Special Multidrop cable for connection of multiple PMAC-Packs. Contact Factory.
Accessory 4: Additional Instruction Manual
This accessory provides an additional instruction manual for the PMAC. Normally, one set of manuals is
provided with every four PMACs or fewer shipped together.
•
ACC-4: PMAC User's Manual and Software Reference
•
ACC-4PP: PMAC-Pack Hardware Reference
Accessory 6: Handwheel Encoder
This is a Hewlett-Packard HEDS-7501 "rotary pulse generator" or "handwheel encoder"; with 256 lines
per revolution. A six-foot flat cable is provided with the encoder. PMAC ACC-8D has matching sockets
for this cable. This accessory can be interfaced with PMAC-Packs equipped with an internal ACC39PP.
Note:
A custom interface cable (no charge) is required for PMAC-Pack. Consult Delta
Tau before ordering.
Accessory 8: Terminal Block
The ACC-8D provides connections to a family of option boards for special purposes.
The PMAC-Pack
provides the user with a screw terminal interface to the PMAC, (a built-in ACC-8D so to speak)
.
However, many of the ACC8D options can interface to PMAC-Pack to facilitate connection of different
servo feedback devices and motors. Terminal block options are as follows:
ACC8D, Option 6
Provides optically isolated connection for four incremental encoders (three channels each; A, B, and C)
on a separate board.
Option 7
Provides two channels of resolver-to-digital conversion on a separate board. Two additional channels can
be added to this board with sub-option a.