Specifications

Doc Number: VIS-ANA-VER-01001-9002
Date: 27 May 2004
Issue: 5.0
Page: 35 of 80
Author: J. Delgadillo
Controls Preliminary Design Report Issue 5.doc
SIGNAL
#
SIGNAL NAME SIGNAL TYPE
21 AZ Neg Vicinity Limit DCC. Contacts Open = Limit (SF)
22 AZ Pos Vicinity Limit DCC. Contacts Open = Limit (SF)
23 AZ Neg Pre-Interlock
Limit
DCC. Contacts Open = Limit (SF)
24 AZ Pos Pre-Interlock Limit DCC. Contacts Open = Limit (SF)
25 AZ Velocity Limit (Axis
limited to 0.5°/sec)
DCC. Contacts Open = Velocity Limited
26 AZ Cable Wrap DCC. Contacts Open = Negative Direction Wrap
27 AZ Parked DCC. Contacts Closed = Parked
28 Switch Common Isolated Return for above contacts
ENCODER
29 AZ Tape Encoder Read-
Head 1
Sin-Cos 1 V pp + Ref Mark (*)
30 AZ Tape Encoder Read-
Head 2
Sin-Cos 1 V pp + Ref Mark (*)
31 AZ Tape Encoder Read-
Head 3
Sin-Cos 1 V pp + Ref Mark (*)
32 AZ Tape Encoder Read-
Head 4
Sin-Cos 1 V pp + Ref Mark (*)
TACHOMETER
33 AZ Sum Rate Feedback
+/- 5 Vdc (5 V = 2 °/sec)
MOTOR AMPLIFIER
34 AZ Motor #1 Current +/- 5 Vdc (5 V = Motor Amplifier I Limit)
35 AZ Motor #2 Current +/- 5 Vdc (5 V = Motor Amplifier I Limit)
36 AZ Motor #3 Current +/- 5 Vdc (5 V = Motor Amplifier I Limit)
37 AZ Motor #4 Current +/- 5 Vdc (5 V = Motor Amplifier I Limit)
38 Analogue Common Isolated Analogue Return and DC Power 0V for
Analogue Signals
AZ LCU INTERLOCK COMMAND
39 AZ LCU Intlk Cmd (To
Remove Power to AZ
Motor Controllers)
OCS Low = AZ LCU Intlk (via 12V Relay in PDU)