Specifications

Doc Number: VIS-ANA-VER-01001-9002
Date: 27 May 2004
Issue: 5.0
Page: 31 of 80
Author: J. Delgadillo
Controls Preliminary Design Report Issue 5.doc
4.2.4.12 AZ/ALT PDU Major Subassemblies
The major subassemblies that make up the AZ/ALT PDU are listed below:
TABLE 4.2.2.1.A - AZ/ALT PDU Major Subassemblies
MANUFACTURER MANUFACTURER
PART NUMBER
DESCRIPTION
Kollmorgen Motion
Technologies Group
SR30200
PA2800
Azimuth Motor Controller
and Power Supply
Kollmorgen Motion
Technologies Group
SE30200
PA2800
Altitude Motor Controller
and Power Supply
Hoffman PROLINE Series AZ/ALT PDU Enclosure
Heidenhain IBV660B ALT Interpolator Box
Heidenhain IBV 606 AZ/ALT Encoder Splitter
Box
Integrated Power Design SRW-100-4003 PDU Logic Power Supply
Integrated Power Design SRW-45-2002 Encoder Power Supply
Finder Various Relays
Sprecher + Schuh CS4C Series Contactors
ABB Control Inc. Various Circuit Breakers
Schaffner FN258-30/33
AZ/ALT 3φ EMI Filter
Schaffner FN350-12/29
1φ EMI Filter
Entrelec Inc. Various Time Delay Relays
Wieland DPST-8A/125 Power Switch
Shuttle Computer Group G7VP2 CCU Motherboard
Delta Tau Turbo PMAC2-PC DSP Card
Delta Tau Accessory 51P High Resolution Interpolator
Card
Delta Tau Accessory 8E DSP DAC Accessory Bd
Antron SP2-4300FB CCU Power Supply
4.2.4.13 AZ/ALT LCU Interface
Refer to Figure 4.2.2.1.E, LCU Interface Block Diagram, it shows the handshaking, status,
command and feedback information between the AZ/ALT PDU and to the AZ and ALT
LCU. As mentioned earlier, the accepting/relinquishing handshaking is done from a manual,
mechanical switch located in the AZ/ALT PDU. After the AZ/ALT LCUs have control of
the mount, individual axis enables/disables can be issued independently.