Altitude LCU

LCU Configuration


 
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Board
Supplier
Number
CPU Motorola MVME 2604 (PowerPC, 333 MHz, 16MB)
1
Time Interface ESO TIM
1
Encoder interface Heidenhain IK 320
1
Amplifier Interface ESO TBD
1
Interlock Interface ESO TBD
1
Digital I/O Interface Acromag AVME 9481
1
Analog I/O Interface VMIC VMIVME 3111
1
Serial Interface ESD ISER8
1
Motion Controller MACCON MAC4-INC
1
Servo Amplifier ESO VME4SA-01
1
Hexapod controller Delta Tau PMAC
1

This ICD specifies to use the couple ESO VME4SA servo amplifier (supplied by AMOS) and MACCON MAC4 Motion controller (supplied by ESO) for the implementation of the control of the Nasmyth wheel.
The decision to assign the control of this wheel to this LCU was driven by the space requirement in the azimuth cable wrap.
 
 

This LCU is responsible for:
 
Device
Terminal Block
Altitude drive
Z1,  Z11,  W13
M2 drives
Z2,  W14
Pupil Beacon
ESO Internal
Nasmyth Wheel
Nasmyth Beacon 
Z3
ESO Internal
Telescope Temperature Sensors
Z4, W12

LCU Console

 
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The RS232 serial link is transiting via the Azimuth Cable Wrap to the Signal Cabinet on the DB9 Connector W10. see in Annex [AN01] VLT-DWG-ESO-15154-1769
Item
From
To
Signal
Description
Pin
LCU CONSOLE:
1
Altitude
Cabinet
Y10
Signal
Cabinet
W10
RS232 RX line twisted pair
TBD
2
RS232 TX line
3
RS232 GND line  
4
Shield PE

Schematic:

[Altitude LCU]

Last modified: Mon Dec 18 10:47:31 MET 2000