Diagram

Engineering Application Bulletin
Atkinson Electronics, Inc.
www.atkinsonelectronics.com
EAB #4m
OUTBACK INVERTER W/ HONDA EB6500 GENERATOR WIRING DIAGRAM May 12, 2006
The GSCM-mini’s wiring connections for Honda’s EB 6500 portable generator with a 12VDC DPDT shutdown
relay. Based on the electrical diagram found in the owners manual, the GSCM-mini should be configured for
momentary start (terminal 6 has no connection)and should be wired in parallel with the Combination Switch
(Off/On/ Start) . The combination switch should be left in the ON position for the generator to be started by the
GSCM-mini and the Outback Inverter. The above diagram shows the combination switch, it’s connects made in
the three positions, it’s connector and wire colors. The GSCM-mini’s K1 (start) relay contact is wired to the ST
(Black/White)and BAT (White) wires. The GSCM-mini’s K2 (stop) relay contact 15 is wired to Bat (White) and
16 to a DPDT shutdown relay coil and back to ground E (Green) wires. The Relay’s first set of normally open
contacts are connected to G (Blue) and FS ( G/W). The second set of contacts connect to E (Green) and IG
(Black) wires. When the Outback Inverter calls for the generator to run it passes a start signal to the GSCM-mini
(terminals 5&7), the GSCM then begins it’s starting sequence by energizing K1 for 20 seconds. The generator
begins cranking, as it is cranking it powers its own electronics (ignition, auto throttle circuit) and begins producing
an AC signal. The GSCM monitors the AC output and when the AC Hz exceeds the crank dis-engage threshold
frequence the K1 (start) relay is de-energized. When the Outback tells the GSCM-mini to shutdown the generator
by removing it’s 12V signal, the GSCM begins it’s shutdown routine (see GSCM-mini data sheet for description
of routine) K2 is energized, energizing the external DPDT shutdown relay, grounding the generator’s Ignition coil
and turning on the Fuel cutoff solenoid valve, as if the combination switch had been turned off causing the
generator to shutdown.