Harris Atlas DVL400, Technical Manual

Page: 137 / 180

2/25/03 888-2473-001 4-37
WARNING: Disconnect primary power prior to servicing.
Section 4 Theory of Operation
ATLAS Series™
Table 4-3 PS Monitor, Analogue Measurements and Scaling
Ref. # Signal Scale Description
1 Phase A 400vac = 3.0vdc AC Primary voltage
2 Phase B 400vac = 3.0vdc AC Primary voltage
3 Phase C 400vac = 3.0vdc AC Primary voltage
4 Average ac 400vac = 3.0vdc (AB+BC+CA)/3
5 REV_VOLT Rev A = 0v
0.25v increment/Rev
Micro Module Revision
6 PS1_+7.5v 7.5vdc = 3.0vdc PS1 +7.5v output
7 PS1_+15v 15vdc = 3.0vdc PS1 +15v output
8 PS1_-15v -15vdc = 3.0vdc PS1 -15v output
9 PS2_+7.5v 7.5vdc = 3.0vdc PS2 +7.5v output
10 PS2_+15v 15vdc = 3.0vdc PS2 +15v output
11 PS2_-15v -15vdc = 3.0vdc PS2 -15v output
12 SPARE
13 SPARE
14 +7.5v 7.5vdc = 3.0vdc Or'ed output of PS1 & PS2
15 +15v 15vdc = 3.0vdc Or'ed output of PS1 & PS2
16 -15v -15vdc = 3.0vdc Or'ed output of PS1 & PS2
17 +3.3v 3.3v = 3.3vdc 3.3 volt regulator output
18 +5v 5v = 3.0vdc 5 volt regulator output
19 +12v 12v = 3.0vdc 12 volt regulator output
20 -12v -12v = 3.0vdc -12 volt regulator output
21 Vref 4.096v = 3.0vdc Output of on board reference
22 Air Temperature 32mv / Deg C
0 Deg C = 1.6v
Ambient temperature sensor located on PS
Monitor board
23 Air Pressure -1"H2O = .25vdc
0"H2O = 2.25vdc
+1"H2O = 4.25vdc
Air Pressure - Fan(s) OK