Alpha Technologies ECM - Manual (Page 34)

34
TM 744-862-C0-003 Rev.C
Engine Control Module (ECM)
4.1 ECM Configuration DIP Switch, Fuses
J 3
J 3
The ECM has an 8 position DIP switch (SW5) which is used to configure
the type of Generator Interface, APU output voltage (AC or DC), and the
utility voltage. Please refer to Section 4.4, "Input Voltage and Line Sense",
prior to configuring utility voltage and line sense voltage. Also, the ECM
power board contains three fuses, F1, F2, and F3.
The fuses protect the following circuits:
J 1
J 1
J 2
J 2
F3
F1
F2
Fuses and Switches:
F1 1.5A, 250V (Slo-Blo)
F2 1.0A, 250V (Slo-Blo)
F3 250mA, 250V (Slo-Blo)
SW5 Configuration DIP switch
F1: 12V input from the APU. (P/N 460-204-10)
F2: 12V output to the APU fan and enclosure gas detector. (P/N 460-205-10)
F3: 120/240 VAC input to the ECM logic transformer. (P/N 460-166-10)
GRI (Power Board)
Engine Control Module
(ECM) PCB
ECM Configuration DIP Switch (SW5)
Section 4, ECM Configuration/System Interface
Fig. 4-1 ECM Configuration DIP Switch and fuse locations