Alpha Technologies AlphaGen PN-6x-T 7.5kW 48VDC - Installation and Operation Manual - Manual (Page 75)

745-020-B0-003, Rev. C 75
Fig. 8-3, Gas Solenoid Interface Connector
Fig. 8-4, Charger Control Interface Connector
8.4 48V Charger Module Control Interface Connector
The Charger Module – Control Interface Connector is connected between the
charger module and ECM with Sense/Power leads connected to the APU output DC bus. The
interface control is a 4-pin (2x2 row) Universal Mini Mate-’N’-Lok style male connector.
8.0 Interconnection, continued
8.3 Gas Solenoid Interface Connector
Vapor
Fuel
Solenoid
FROM APU
Connection
is not
polarized
Pin Description Function
1 ECM Charger Control
(+) Yellow Wire Connects pins 1 and 2 together, turning the charger
ON, i.e. Closed (LOW signal).
2 Inverter Battery
(+) Red Wire Input power to charger module, operates on 48VDC
battery pack to charge ignition battery.
3 ECM Charger Control
Orange Wire ECM Turns charger ON by applying a LOW signal to
this pin (referenced to ignition battery negative).
4 Inverter Battery (-)
Black Wire NEGATIVE Input power to charger module, operates
on 48VDC battery pack to charge ignition battery.
REAR
VIEW
Pin Description Function
1 Gas Solenoid +12V +12VDC supplied to Gas Solenoid only when APU is ON
(Running). APU Shuts OFF gas supply to cabinet during
any fail safe or fault condition.
2 Gas Solenoid Common Return path for Gas Solenoid.