Specifications

Doc Number: VIS-ANA-VER-01001-9002
Date: 27 May 2004
Issue: 5.0
Page: 38 of 80
Author: J. Delgadillo
Controls Preliminary Design Report Issue 5.doc
SIGNAL
#
SIGNAL NAME SIGNAL TYPE
RATE FEEDBACK
31 ALT Sum Rate Feedback
+/- 5 Vdc (5 V = 2 °-sec)
MOTOR AMPLIFIER
32 ALT Motor #1 Current +/- 5 Vdc (5 V = Motor Amplifier
Current Limit)
33 ALT Motor #2 Current +/- 5 Vdc (5 V = Motor Amplifier
Current Limit)
34 Analogue Common Isolated Analogue Return and DC
Power 0V for Analogue Signals
ALT LCU INTERLOCK CMD
35 ALT LCU Intlk Cmd (To remove Power
to ALT Motor Controllers)
OCS Low = Alt LCU Intlk (via 12 Vdc
Relay in PDU).
ISOLATION AMPLIFIER POWER SUPPLIES
36 +12V DC Low Voltage Power (0V on item 34)
37 -12V DC Low Voltage Power (0V on item 34)
(I) – Causes Interlock
(SF) Causes Summary Fault
(OP) – Output from LCU
DCC – Dry-Contact Closure
OCS – Open-collector sink
(*) = Standard Heidenhain Read Head 15-way D-Sub connections.