Gasboy Atlas Start-up - Manual (Page 97)

MDE-4334D Atlas™ Start-up and Service Manual · July 2013 Page 5-37
Electronic and Electrical Components Atlas 8800 Parts
Atlas 8800 Parts
Pump Interface PCA [T18994 (Atlas 8800 Only)]
Pump Interface PCA (T18994) connects with the pump controller and pulsers, pump handle
switches, valves, STP signal relays, and electro-mechanical totalizers. Normally, this interface
is with the Pump Controller PCA. However, when an ATC Controller Board is used, the Pump
Controller Interface sends pulser information to the ATC Controller PCA. The Hydraulic
Interface (T18994) also converts the 24 VAC it receives from the power supply to 14 VDC for
the pump handle feed and 150 VDC for pulsers. The interface receives +5 VDC from the
Pump Controller PCA and supplies 120 VAC for the valve and STP signals.
Figure 5-30 shows the STP PCA layout that contains components related to the Hydraulic
Interface, Pump Interface PCA (T18994-G1).
Figure 5-30: Pump Interface PCA [T18994 (Atlas 8800 Only)]
AT_PumpPCA_interface
P306 P307 P406 P405
P309 P308 P305
PCA Connections and Cables
Connector # Through Cable To Assembly At Connector #
P305 (20) R19952-G1 T20092-G1 P205 (16)
P306 (5) R19939-G1 T20092-G1 P206 (5)
P307 (10) R19951-G1 T20092-G1 P207 (10)
P308 (2) 24 VAC R20333-G1
P309 (12) T19983 T19983-G1 P604 (4) P601 (3) P401
(9)
P405 (20)
M04658A001 Q12514-10 (A1)/Q12514-10 (B1) PH (A1) (4), PH (B1) (4)
R19072-G1 T18350-G3 (A) T18350-G3 (B) J921B (4), J921A (4)
M04658A001 Q11763-01 (+) (C) (-)
P406 (5) M04889A001
M00455A003 Grade 1 J922A (4)
M00455A003 Grade 1 J922B (4)