Alpha Technologies AlphaGen 5.0kW Auxiliary Power Unit - Manual (Page 70)

4. Interconnection
70
031-132-B0-001 Rev. A TM ©2000
4.3.4 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. See Fig. 4-1 for location.
Pin Description Function
1 Ignition Battery (+) Sense (YELLOW) wire. Senses DC Charge on ignition
battery, adjusts charger for
correct voltage.
2 Inverter Battery (+) RED wire. Input power to
charger module, operates on
36 or 48VDC battery packs to
charge ignition battery.
3 ECM Charger Control ORANGE ECM Turns charger ON by
applying a LOW signal to this
pin (referenced to ignition
battery negative).
4 Inverter Battery NEGATIVE BLACK wire NEGATIVE Input power to
charger module, operates on
36 or 48VDC battery packs to
charge ignition battery.
5($5
9,(:
-
4.3 Connectors, continued
Fig. 4-5 Charger Control Interface