Specifications

Doc Number: VIS-ANA-VER-01001-9002
Date: 27 May 2004
Issue: 5.0
Page: 47 of 80
Author: J. Delgadillo
Controls Preliminary Design Report Issue 5.doc
SIGNAL
#
SIGNAL NAME SIGNAL TYPE
16 CASS Cable-Wrap Divergence Intlk DCC. Contacts Open = Divergence (I)
(SF)
17 Relay Common Isolated Return for above contacts
SWITCHES
18 CASS Neg Vicinity Limit DCC. Contacts Open = Limit (SF)
19 CASS Pos Vicinity Limit DCC. Contacts Open = Limit (SF)
20 CASS Neg Pre-Interlock Limit DCC. Contacts Open = Limit (SF)
21 CASS Pos Pre-Interlock Limit DCC. Contacts Open = Limit (SF)
22 CASS Velocity Limit (Axis limited to
0.5°-sec)
DCC. Contacts Open = Limit
23 CASS Cable Wrap DCC. Contacts Open = Negative
Direction Wrap
24 Switch Common Isolated Return for above contacts
ENCODER
25 CASS Tape Encoder Read-Head 1 Sin-Cos 1 V pp + Ref Mark (*)
26 CASS Tape Encoder Read-Head 2 Sin-Cos 1 V pp + Ref Mark (*)
27 CASS Tape Encoder Read-Head 3 Sin-Cos 1 V pp + Ref Mark (*)
28 CASS Tape Encoder Read-Head 4 Sin-Cos 1 V pp + Ref Mark (*)
TACHOMETER
29 CASS Sum Rate Feedback
+/- 5 Vdc (5 V = 3.6 °/sec)
MOTOR AM-PLIFIER
30 CASS Motor #1 Current +/- 5 Vdc (5 V = Motor Amplifier I Limit)
31 CASS Motor #2 Current +/- 5 Vdc (5 V = Motor Amplifier I Limit)
32 CASS Cable-Wrap Motor Current +/- 5 Vdc (5 V = Motor Amplifier I Limit)
33 Analogue Common Isolated Analogue Return and DC Power
0V for Analogue Signals
CASS LCU INTERLOCK COMMAND
34 CASS LCU Intlk Cmd (To Remove
Power to AZ Motor Controllers)
OCS Low = CASS LCU Intlk (via 12V
DC Relay in PDU)
ISOLATION AMPLIFIER NPOWER SUPPLIES
35 +12V DC Low Voltage DC Power (0V on item 33)