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• I/O INIT (ITEM 1) just establishes comm from SCA → GPC commands can be sent before I/O is initiated, but there will be no feedback, & no data. • SPIN checks: SCA checks for the spin rate to be "NORMAL" (50 RPM) ±~10% if it is out of range (overspeed or underspeed), response depends on sequence • SCA-HALT if in MECH SEQ • no response if in TERMINAL SEQ until last 5 sec • in last 5 sec: {SCA-HALT if no lim oride, no response if lim oride} Note: "deploy rate go" means spin ±10% - Palapa has no feedback on trickle charge (on or off) - BUS CUR (spec 206) is the total current to PAN & S/C except that drawn by spin motors - "VEH ARM" shutdown will occur for either: (1) 2 ARM buses ↓ or (2) an ARM bus and a RELAY bus ↓ - after STOW sequence, the spin rate "bug" is set to slow rate - ✓ BATT T & SRMT: if OK just before mech seq, continue (no more checks req'd. If not ok, continue... but don't deploy w/out MCC confirmation
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Bracket with two lines was written as text all in one bracket.